01_Intellij_Java_universal_20240419/.idea/.gitignore

@@ -0,0 +1,3 @@
+# Default ignored files
+/shelf/
+/workspace.xml

01_Intellij_Java_universal_20240419/.idea/misc.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_17" default="true" project-jdk-name="17" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/out" />
+  </component>
+</project>

01_Intellij_Java_universal_20240419/.idea/modules.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/01_Intellij_Java_universal_20240419.iml" filepath="$PROJECT_DIR$/01_Intellij_Java_universal_20240419.iml" />
+    </modules>
+  </component>
+</project>

01_Intellij_Java_universal_20240419/.idea/vcs.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$/.." vcs="Git" />
+  </component>
+</project>

01_Intellij_Java_universal_20240419/01_Intellij_Java_universal_20240419.iml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/untitled/ch11" isTestSource="false" />
+      <sourceFolder url="file://$MODULE_DIR$/untitled/src" isTestSource="false" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>

01_Intellij_Java_universal_20240419/file2.txt

@@ -0,0 +1 @@
+776-6761-3633-7047-9651-3662-3256-9614-7203-1094-8468-463-6635-460-9999

01_Intellij_Java_universal_20240419/untitled/.gitignore

@@ -0,0 +1,29 @@
+### IntelliJ IDEA ###
+out/
+!**/src/main/**/out/
+!**/src/test/**/out/
+
+### Eclipse ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+bin/
+!**/src/main/**/bin/
+!**/src/test/**/bin/
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+
+### VS Code ###
+.vscode/
+
+### Mac OS ###
+.DS_Store

01_Intellij_Java_universal_20240419/untitled/.idea/.gitignore

@@ -0,0 +1,3 @@
+# 默认忽略的文件
+/shelf/
+/workspace.xml

01_Intellij_Java_universal_20240419/untitled/.idea/misc.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_17" default="true" project-jdk-name="17" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/out" />
+  </component>
+</project>

01_Intellij_Java_universal_20240419/untitled/.idea/modules.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/Application.iml" filepath="$PROJECT_DIR$/Application.iml" />
+    </modules>
+  </component>
+</project>

01_Intellij_Java_universal_20240419/untitled/.idea/vcs.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$/../.." vcs="Git" />
+  </component>
+</project>

01_Intellij_Java_universal_20240419/untitled/Application.iml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/ch11" isTestSource="false" />
+      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>

01_Intellij_Java_universal_20240419/untitled/ch11/ch11_56/test1/App11_1.java

@@ -0,0 +1,31 @@
+package ch11_56.test1;
+
+// 泛型
+
+public class App11_1 <T>{
+    private T obj;
+
+    public static void main (String[] args){
+        // 两种方式均可
+        // 实例化 name 对象
+        App11_1<String> name = new App11_1<>();
+        /* App11_1<String> name = new App11_1<String>(); */
+
+        // 实例化 age 对象
+        App11_1<Integer> age = new App11_1<>();
+
+        name.setObj("Todd");
+        System.out.println("Name: " + name.getObj());
+
+        age.setObj(114514);
+        System.out.println("Age: " + age.getObj());
+    }
+
+    public T getObj(){
+        return obj;
+    }
+
+    public void setObj(T obj){
+        this.obj = obj;
+    }
+}

01_Intellij_Java_universal_20240419/untitled/file1.txt

@@ -0,0 +1 @@
+文件已被成功创建!又添加了一行文字!

01_Intellij_Java_universal_20240419/untitled/src/javaAssignment_20240418/box.java

@@ -0,0 +1,39 @@
+/*
+ *   Function: 创建 盒子 类
+ *   Date: 2024 04 18
+ *   Code by: JRNitre
+ * */
+
+package javaAssignment_20240418;
+
+public class box {
+    private double length;
+    private double width;
+    private double height;
+
+    public void setBox_length (double l){
+        this.length = l;
+    }
+    public void setBox_width (double w){
+        this.width = w;
+    }
+    public void setBox_height (double h){
+        this.height = h;
+    }
+    public void printVolume(){
+        System.out.println(height * width * length);
+    }
+
+    public static void main (String[] args){
+        // 实例化 box 类
+        box b_1 = new box();
+
+        // 赋值
+        b_1.setBox_height(5);
+        b_1.setBox_length(2);
+        b_1.setBox_width(3);
+
+        // 输出体积
+        b_1.printVolume();
+    }
+}

01_Intellij_Java_universal_20240419/untitled/src/javaAssignment_20240418/complex.java

@@ -0,0 +1,46 @@
+/*
+ *   Function: 创建类计算两个虚数和
+ *   Date: 2024 04 18
+ *   Code by: JRNitre
+ * */
+
+package javaAssignment_20240418;
+public class complex {
+    // 实部
+    private int realPart;
+    // 虚部
+    private int imaginePart;
+
+    // 无参构造方法
+    public complex() {
+        this.realPart = 0;
+        this.imaginePart = 0;
+    }
+
+    // 有参构造方法
+    public complex (int r, int i){
+        this.realPart = r;
+        this.imaginePart = i;
+    }
+
+    // 计算两个虚数和
+    public complex complexAdd (complex a){
+        complex temp = new complex();
+        temp.realPart = this.realPart + a.realPart;
+        temp.imaginePart = this.imaginePart + a.imaginePart;
+        return temp;
+    }
+
+    // 返回计算结果 String
+    public String ToString (){
+        return this.realPart + " + " + this.imaginePart + "i";
+    }
+
+    public static void main (String[] args){
+        complex c_1 = new complex(1,2);
+        complex c_2 = new complex(2,3);
+        complex c_out = c_1.complexAdd(c_2);
+
+        System.out.println(c_out.ToString());
+    }
+}

01_Intellij_Java_universal_20240419/untitled/src/javaAssignment_20240418/student.java

@@ -0,0 +1,89 @@
+/*
+ *   Function: 学生类
+ *   Date: 2024 04 18
+ *   Code by: JRNitre
+ * */
+
+package javaAssignment_20240418;
+
+import java.util.Objects;
+
+public class student {
+    private int studentID;
+    private String name;
+    private boolean gender;
+    private int age;
+    private int math;
+    private int english;
+    private int chinese;
+
+    public void addStudent_ID (int id){
+        this.studentID = id;
+    }
+
+    public void addStudent_name (String name){
+        this.name = name;
+    }
+
+    public void addStudent_gender (String Uin){
+        if (Objects.equals(Uin, "男")){
+            this.gender = true;
+        }
+        if (Objects.equals(Uin, "女")){
+            this.gender = false;
+        }
+    }
+
+    public void addStudent_age (int a){
+        this.age = a;
+    }
+
+    public void addStudent_math (int a){
+        this.math = a;
+    }
+
+    public void addStudent_english (int a){
+        this.english = a;
+    }
+
+    public void addStudent_chinese (int a){
+        this.chinese = a;
+    }
+
+    public int getStudent_sum (){
+        return this.math + this.english + this.chinese;
+    }
+
+    public double getStudent_average (){
+        return (double) getStudent_sum() / 3;
+    }
+
+    public void getStudentInfo (){
+        System.out.println("Student ID: " + this.studentID);
+        System.out.println("Student Name: " + this.name);
+        System.out.print("Student Gender: ");
+        if (Objects.equals(this.gender, true)){
+            System.out.println("男");
+        } else{
+            System.out.println("女");
+        }
+        System.out.println("Student Age: " + this.age);
+        System.out.println("Student Sum: " + getStudent_sum());
+        System.out.println("Student Average: " + getStudent_average());
+    }
+
+    public static void main (String[] args){
+        student s1 = new student();
+
+        s1.addStudent_ID(1234);
+        s1.addStudent_name("dog meat");
+        s1.addStudent_gender("男");
+        s1.addStudent_age(15);
+
+        s1.addStudent_chinese(114);
+        s1.addStudent_english(5);
+        s1.addStudent_math(14);
+
+        s1.getStudentInfo();
+    }
+}

01_Intellij_Java_universal_20240419/untitled/src/javaAssignment_20240418/sumNum.java

@@ -0,0 +1,56 @@
+/*
+ *   Function: 二维数组和
+ *   Date: 2024 04 18
+ *   Code by: JRNitre
+ * */
+
+package javaAssignment_20240418;
+
+public class sumNum {
+    // 行
+    private int m;
+    // 列
+    private int n;
+    // 和
+    private int sum;
+
+    // 带参构造方法
+    public sumNum(int[][] array) {
+        this.m = array.length;
+        this.n = array[0].length;
+
+        int i, j;
+
+        for (i = 0; i < this.n; i++){
+            for (j = 0; j < this.m; j++){
+                this.sum += array[i][j];
+            }
+        }
+    }
+
+    /**
+     * Retrieves the sum value.
+     *
+     * @return         the sum value
+     */
+    public int getSum (){
+        return this.sum;
+    }
+
+    public int get_m (){
+        return this.m;
+    }
+
+    public int get_n (){
+        return this.n;
+    }
+
+    public static void main (String[] args){
+        int[][] s_array = {{1,2,3},{4,5,6},{7,8,9}};
+
+        sumNum s1 = new sumNum(s_array);
+
+        System.out.println("in " + s1.get_m() + " row and " + s1.get_n() + " column sum: ");
+        System.out.println(s1.getSum());
+    }
+}

01_Intellij_Java_universal_20240419/untitled/src/javaAssignment_20240510/thread.java

@@ -0,0 +1,47 @@
+/*
+ *   Function: Java 多线程
+ *   Date: 2024 05 10
+ *   Code by: JRNitre
+ * */
+
+package javaAssignment_20240510;
+
+class myThread extends Thread{
+    // 成员变量
+    private String who;
+    // 构造方法
+    public myThread(String who){
+        super();
+        this.who = who;
+    }
+
+    public myThread(){
+        super();
+    }
+
+    // 覆盖 run 方法
+    public void run(){
+        for (int i = 0; i < 5; i++){
+            try{
+                sleep(1000);
+            }
+            catch (InterruptedException e){
+
+            }
+            System.out.println(who + "is running");
+        }
+    }
+}
+
+public class thread {
+    public static void main(String[] args){
+        // 创建线程
+        myThread test01Thread = new myThread("test01_Thread");
+        myThread test02Thread = new myThread("test02_Thread");
+
+        test01Thread.start();
+        test02Thread.start();
+
+        System.out.println("system out");
+    }
+}

01_Intellij_Java_universal_20240419/untitled/src/javaAssignment_20240514/bus.java

@@ -0,0 +1,8 @@
+package javaAssignment_20240514;
+
+    public class bus implements charge{
+        @Override
+        public void charge() {
+            System.out.println("publicBus: 1$/sheet, No Limit Kilometer");
+        }
+    }

01_Intellij_Java_universal_20240419/untitled/src/javaAssignment_20240514/charge.java

@@ -0,0 +1,5 @@
+package javaAssignment_20240514;
+
+public interface charge {
+    public void charge();
+}

01_Intellij_Java_universal_20240419/untitled/src/javaAssignment_20240514/cinema.java

@@ -0,0 +1,13 @@
+package javaAssignment_20240514;
+
+public class cinema implements play, charge {
+    @Override
+    public void play() {
+        System.out.println("Now Showing");
+    }
+
+    @Override
+    public void charge() {
+        System.out.println("Cinema: 30$/sheet, Student half");
+    }
+}

01_Intellij_Java_universal_20240419/untitled/src/javaAssignment_20240514/goods.java

@@ -0,0 +1,19 @@
+package javaAssignment_20240514;
+
+public class goods {
+    private String goodsName;
+
+    public goods(String name){
+        this.goodsName = name;
+    }
+
+    // 返回商品名
+    public String getName(){
+        return this.goodsName;
+    }
+
+    // 设置商品名
+    public void setName(String name){
+        this.goodsName = name;
+    }
+}

01_Intellij_Java_universal_20240419/untitled/src/javaAssignment_20240514/market.java

@@ -0,0 +1,30 @@
+package javaAssignment_20240514;
+
+public class market {
+    private String marketName;
+    private String marketGoodsList;
+
+    public market(String name){
+        this.marketName = name;
+    }
+
+    public String getName(){
+        return this.marketName;
+    }
+
+    public void setName(String name){
+        this.marketName = name;
+    }
+
+    public void getGoodsList(){
+        System.out.println(this.marketGoodsList);
+    }
+
+    public void setGoodsList(String goodlist){
+        this.marketGoodsList = goodlist;
+    }
+
+    public String sell(){
+        return "yee~";
+    }
+}

01_Intellij_Java_universal_20240419/untitled/src/javaAssignment_20240514/person.java

@@ -0,0 +1,23 @@
+package javaAssignment_20240514;
+
+public class person {
+    // 姓名
+    private String personName;
+    // 性别
+    private String personGender;
+    // 年龄
+    private int personAge;
+
+    public person(String name, String gender, int age){
+        this.personName = name;
+        this.personGender = gender;
+        this.personAge = age;
+    }
+
+    public String getInfo(){
+        String bunchInfo;
+        bunchInfo = this.personName + "-" + this.personGender + "-" + this.personAge;
+        return bunchInfo;
+    }
+}
+

01_Intellij_Java_universal_20240419/untitled/src/javaAssignment_20240514/person_no3.java

@@ -0,0 +1,17 @@
+package javaAssignment_20240514;
+
+public class person_no3 {
+    private String personName;
+
+    public String getName(){
+        return this.personName;
+    }
+
+    public void setName(String name){
+        this.personName = name;
+    }
+
+    public void shopping(){
+        System.out.println("rob");
+    }
+}

01_Intellij_Java_universal_20240419/untitled/src/javaAssignment_20240514/play.java

@@ -0,0 +1,5 @@
+package javaAssignment_20240514;
+
+public interface play {
+    public void play();
+}

01_Intellij_Java_universal_20240419/untitled/src/javaAssignment_20240514/student.java

@@ -0,0 +1,42 @@
+package javaAssignment_20240514;
+
+public class student extends person {
+    // 学号
+    private int studentID;
+    // 哲学成绩
+    private int studentPhilosophyScore;
+    // 英语成绩
+    private int studentEnglishScore;
+    // 计算机成绩
+    private int studentComputerScore;
+
+    // 构造函数
+    public student(String name, String gender, int age, int id, int philosophy, int english, int computer) {
+        super(name, gender, age);
+        this.studentID = id;
+        this.studentPhilosophyScore = philosophy;
+        this.studentEnglishScore = english;
+        this.studentComputerScore = computer;
+    }
+
+    // 三门课平均成绩
+    public int aver(){
+        return (this.studentPhilosophyScore + this.studentEnglishScore + this.studentComputerScore) / 3;
+    }
+
+    // 最高分
+    public double max(){
+        return Math.max(Math.max(this.studentComputerScore, this.studentEnglishScore), this.studentPhilosophyScore);
+    }
+
+    // 最低分
+    public int min(){
+        return Math.min(Math.min(this.studentComputerScore, this.studentPhilosophyScore), this.studentEnglishScore);
+    }
+
+    public String getInfo(){
+        String bunchInfo;
+        bunchInfo = this.studentID + "-" + super.getInfo() + "-" + aver() + "-" + max() + "-" + min();
+        return  bunchInfo;
+    }
+}

01_Intellij_Java_universal_20240419/untitled/src/javaAssignment_20240514/taxi.java

@@ -0,0 +1,8 @@
+package javaAssignment_20240514;
+
+public class taxi implements play{
+    @Override
+    public void play() {
+        System.out.println("Taxi: 1.6$/Kilometer, Starting 3 Kilometer");
+    }
+}

01_Intellij_Java_universal_20240419/untitled/src/javaAssignment_20240514/test.java

@@ -0,0 +1,65 @@
+package javaAssignment_20240514;
+
+public class test{
+
+    /*
+     * class:
+     *      person.java
+     *      student.java
+     *
+    public static void main (String[] args){
+        student s1 = new student("test", "man", 10, 101, 80, 60, 50);
+
+        System.out.println(s1.getInfo());
+    }
+    */
+
+    /*
+     * interface:
+     *      charge.java
+     *      play.java
+     * class:
+     *      bus.java
+     *      taxi.java
+     *      cinema.java
+    public static void main (String[] args){
+        cinema c1 = new cinema();
+
+        c1.charge();
+        c1.play();
+
+        bus b1 = new bus();
+        b1.charge();
+
+        taxi t1 = new taxi();
+        t1.play();
+    }
+    */
+
+    /*
+     * class:
+     *      goods.java
+     *      market.java
+     *      person_no3.java
+    public static void main (String[] args){
+        goods g1 = new goods("black_man");
+
+        System.out.println(g1.getName());
+        g1.setName("rainbow_main");
+
+        market m1 = new market("limit");
+
+        System.out.println(m1.getName());
+        m1.setName("no limit");
+        m1.setGoodsList("one black_man - two black_man - three black-man");
+        m1.getGoodsList();
+        System.out.println(m1.sell());
+
+        person_no3 pn1 = new person_no3();
+
+        System.out.println(pn1.getName());
+        pn1.setName("todd");
+        pn1.shopping();
+    }
+    */
+}

01_Intellij_Java_universal_20240419/untitled/src/javaAssignment_20240520/function_01.java

@@ -0,0 +1,131 @@
+/*
+ *   Function: Java 课程实验 四 - 第一题部分
+ *   Date: 2024 05 20
+ *   Code by: JRNitre
+ * */
+
+package javaAssignment_20240520;
+
+import java.io.*;
+
+public class function_01 {
+    // 私有成员: 文件名
+    private String fileName;
+
+    // 构造函数, 接收需要创建的文件名
+    public function_01(String name ){
+        this.fileName = name;
+    }
+
+    /*
+    *   Function: createFile
+    *   Description:
+    *       创建文件
+    *
+    *   Input:  void
+    *   Return: boolean     文件是否创建成功
+    * */
+    public boolean createFile(){
+        try {
+            // 通过 File 实例化一个 file 对象用于创建文件
+            File file = new File(fileName);
+            // 判断是否已经存在同名文件
+            if (file.createNewFile()){
+                System.out.println("File : " + this.fileName + " Create Done!");
+                return true;
+            } else {
+                System.out.println("The file already exists!");
+                return false;
+            }
+        } catch (IOException ioe){
+            System.out.println("Error");
+            ioe.printStackTrace();
+            return false;
+        }
+    }
+
+    /*
+     *   Function: writeToFile
+     *   Description:
+     *       覆盖写入内容
+     *
+     *   Input:  String      需要写入的字符串
+     *   Return: boolean     是否写入成功
+     * */
+    public boolean writeToFile(String text){
+        try {
+            // 实例化 writer 对象指定需要写入的文件
+            FileWriter writer = new FileWriter(this.fileName);
+            // write 方法写入字符串
+            writer.write(text);
+            // 写入完毕关闭文件
+            writer.close();
+            // 输出提示
+            System.out.println("Write to File : " + this.fileName + " \"" + text + "\"");
+            return true;
+        } catch (IOException ioe) {
+            System.out.println("Write Error!");
+            return false;
+        }
+    }
+
+    /*
+     *   Function: addToFile
+     *   Description:
+     *       追加写入内容
+     *
+     *   Input:  String      需要写入的字符串
+     *   Return: boolean     是否写入成功
+     *
+     *   Other:
+     *      该方法与 writeToFile 实现原理相同
+     *      构造 FileWriter 时传入的参数中 append 可以通过 boolean 控制追加写入还是覆盖写入
+     *      true:   追加
+     *      false:  覆盖
+     * */
+    public boolean addToFile(String text){
+        try {
+            FileWriter writer = new FileWriter(this.fileName, true);
+            writer.write(text);
+            writer.close();
+            System.out.println("Add to File : " + this.fileName + " \"" + text + "\"");
+            return true;
+        } catch (IOException ioe){
+            System.out.println("Add Error!");
+            return false;
+        }
+    }
+
+    /*
+     *   Function: getFile
+     *   Description:
+     *       获取文件内容
+     *
+     *   Input:  void
+     *   Return: String     返回文件内容
+     * */
+    public String getFile(){
+        // 实例化 content 对象用于存储文件内容
+        StringBuilder content = new StringBuilder();
+        try {
+            // 实例化 reader 对象用于读取文件内容
+            BufferedReader reader = new BufferedReader(new FileReader(this.fileName));
+            // line 用于存储每一行内容
+            String line;
+            // while 判断行尾不为空 执行循环
+            while ((line = reader.readLine()) != null) {
+                // 将每一行的字符串拼合至 content 中
+                content.append(line);
+                // 通过 System.lineSeparator() 追加一个换行符
+                content.append(System.lineSeparator());
+            }
+            // 关闭文件
+            reader.close();
+        } catch (IOException ioe) {
+            System.out.println("Read File Error!");
+            ioe.printStackTrace();
+        }
+        // 返回读取到的字符串
+        return content.toString();
+    }
+}

01_Intellij_Java_universal_20240419/untitled/src/javaAssignment_20240520/function_02.java

@@ -0,0 +1,170 @@
+/*
+ *   Function: Java 课程实验 四 - 第二题部分
+ *   Date: 2024 05 20
+ *   Code by: JRNitre
+ * */
+
+package javaAssignment_20240520;
+
+import java.io.*;
+import java.security.SecureRandom;
+
+public class function_02 {
+    public static final int MaxLength = 15;
+    // 文件名
+    private String fileName;
+    // 随机数数组
+    private int[] randomArray = new int[MaxLength];
+
+    // 构造函数, 接收需要创建的文件名
+    // public function_02(String name ){
+    //     this.fileName = name;
+    // }
+
+    /*
+     *   Function: createRandom
+     *   Description:
+     *       生成 15 个随机整数, 并存储到数组中
+     *
+     *   Input:
+     *      int min         随机数最小值
+     *      int max         随机数最大值
+     *   Return: int[]  整型数组
+     * */
+    public int[] createRandom(int min, int max){
+        // 通过 SecureRandom (安全随机类) 实例化一个 secureRandom 对象用于生成随机数
+        SecureRandom secureRandom = new SecureRandom();
+        for (int i = 0; i < MaxLength; i++){
+            // 先生成 0 ~ max - min + 1 之间的随机数
+            // 后将生成结果 + min
+            // 最后赋值到随机数数组中
+            randomArray[i] = min + secureRandom.nextInt(max - min + 1);
+        }
+        System.out.println("Create Random Array Done!");
+        // 返回生成完毕的随机数组
+        return randomArray;
+    }
+
+    /*
+     *   Function: createFile
+     *   Description:
+     *       创建文件
+     *
+     *   Input:  String name    需要创建的文件名
+     *   Return: boolean        文件是否创建成功
+     * */
+    public boolean createFile(String name){
+        try {
+            this.fileName = name;
+            // 通过 File 实例化 file 对象用于创建文件
+            File file = new File(fileName);
+            // 判断文件是否创建成功
+            // .createNewFile 方法会检查文件是否存在, 如果不存在就创建文件并返回 true
+            // 否则返回 false 即文件已存在
+            if (file.createNewFile()){
+                System.out.println("File: " + this.fileName + " Create Done!");
+                return true;
+            } else {
+                System.out.println("The file already exists!");
+                return false;
+            }
+        } catch (IOException ioe){
+            System.out.println("Create File Error!");
+            ioe.printStackTrace();
+            return false;
+        }
+    }
+
+    /*
+     *   Function: writeToFile
+     *   Description:
+     *       向文件写入数据
+     *
+     *   Input:  String data       需要写入的数据
+     *   Return: boolean           是否写入成功
+     * */
+    public boolean writeToFile(String data){
+        try {
+            // 通过 BufferedWriter 实例化 writer 对象用于向文件写入
+            BufferedWriter writer = new BufferedWriter(new FileWriter(this.fileName));
+            // .write 方法写入数据
+            writer.write(data);
+            // .close 方法写入完毕关闭文件
+            writer.close();
+            System.out.println("Write File Done!");
+            return true;
+        } catch (IOException ioe){
+            System.out.println("Write File Error!");
+            ioe.printStackTrace();
+            return false;
+        }
+    }
+
+    /*
+     *   Function: readFileToArray
+     *   Description:
+     *       读取文件中的内容并返回数组
+     *
+     *   Input:  void
+     *   Return: int[]     返回的数组
+     * */
+    public int[] readFileToArray(){
+        try{
+            // 通过 BufferedReader 类实例化 reader 对象用于读取文件内容
+            BufferedReader reader = new BufferedReader(new FileReader(this.fileName));
+            // 读取文件中一行的内容
+            String line = reader.readLine();
+            // split 方法以 "-" 为分隔符拆分字符串并写入到字符串数组中
+            String[] strArray = line.split("-");
+            // 创建整型数组
+            int[] intArray = new int[MaxLength];
+            for (int i = 0; i < MaxLength; i++){
+                // 将字符串数组转换为整型赋值给整型数组
+                intArray[i] = Integer.parseInt(strArray[i]);
+            }
+            System.out.println("Reade File to Array Done!");
+            // 返回数组
+            return intArray;
+        } catch (IOException ioe){
+            System.out.println("Reade File to Array Error!");
+            ioe.printStackTrace();
+            // 发生错误时返回一个空数组
+            return new int[0];
+        }
+    }
+
+    /*
+     *   Function: bubbleSort
+     *   Description:
+     *       冒泡排序算法
+     *
+     *   Input:  void
+     *   Return: int[]     需要排序的数组
+     * */
+    public void bubbleSort(int[] array){
+        // 获取输入的数组长度
+        int n = array.length;
+
+        // 冒泡排序
+        for (int i = 0; i < n; i++){
+            for (int j = 0; j < n - i - 1; j++){
+                if (array[j] > array[j + 1]) {
+                    int temp = array[j];
+                    array[j] = array[j + 1];
+                    array[j + 1] = temp;
+                }
+            }
+        }
+
+        System.out.println("Bubble Sort Done!");
+
+        // 输出排序后的数组
+        for (int i = 0; i < array.length; i++){
+            System.out.print(array[i]);
+            // 打印分隔符
+            if (i != array.length - 1){
+                System.out.print("-");
+            }
+        }
+    }
+}

01_Intellij_Java_universal_20240419/untitled/src/javaAssignment_20240520/test.java

@@ -0,0 +1,79 @@
+/*
+ *   Function: Java 课程实验 四
+ *   Date: 2024 05 20
+ *   Code by: JRNitre
+ * */
+
+package javaAssignment_20240520;
+
+public class test {
+    public static void main (String[] args){
+
+        /*
+        *   1. 利用文件输入输出流创建一个文件 file1.txt
+        *   2. 写入字符 “文件已被成功创建！”
+        *   3. 文件输入输出流打开文件 file1.txt
+        *   4. 在文件末尾追加一行字符串 “又添加了一行文字”
+        *   5. 打开 file1.txt 读取内容并且显示在屏幕上
+        *
+        *   class: function_01.java
+        *
+
+        // 实例化第一个实验内容的对象
+        function_01 f_1 = new function_01("file1.txt");
+        // 创建文件
+        f_1.createFile();
+        // 覆盖写入字符串
+        f_1.writeToFile("文件已被成功创建!");
+        // 追加写入字符串
+        f_1.addToFile("又添加了一行文字!");
+        // 输出文件的内容
+        System.out.println(f_1.getFile());
+
+        */
+
+        /* ( つ•̀ω•́)つ :-D */
+
+        /*
+        *   1. 产生 15 个 20~9999 之间的随机整数
+        *   2. 利用 BufferedWriter 类将其写入文件 file2.txt 中
+        *   3. 读取该文件中的数据并升序排序
+        *
+        *   class: function_02.java
+        *
+
+        // 实例化第二个实验内容的对象 f_2
+        function_02 f_2 = new function_02();
+
+        // 创建文件
+        f_2.createFile("file2.txt");
+
+        // 接收 createRandom 返回的随机数数组
+        int[] array = f_2.createRandom(20, 9999);
+
+        // 使用 StringBuilder 类实例化一个 data 对象用于将
+        // 整型数组转换为 字符串 + 分隔符的形式
+        StringBuilder data = new StringBuilder();
+
+        // 将获取到的数组转换为字符串
+        for (int i = 0; i < array.length; i++){
+            // .append 方法将输入的字符追加到字符串末尾
+            data.append(array[i]);
+            // 插入分隔符
+            if (i != array.length - 1){
+                data.append("-");
+            }
+        }
+
+        // .toString 方法返回 data 中的字符串并将字符串数组写入文件中
+        f_2.writeToFile(data.toString());
+
+        // 读取文件中内容并返回成数组
+        int[] array_copy = f_2.readFileToArray();
+
+        // 调用冒泡排序算法进行排序
+        f_2.bubbleSort(array_copy);
+
+        */
+    }
+}

01_Intellij_Java_universal_20240419/untitled/src/javaAssignment_20240528/Bank.java

@@ -0,0 +1,32 @@
+/*
+ *   Function: Java 课程实验 五 - 第二题 类 二
+ *   Date: 2024 05 28
+ *   Code by: JRNitre
+ * */
+
+package javaAssignment_20240528;
+
+import java.io.PrintStream;
+
+public class Bank {
+    // 银行名
+    private String bankName;
+    // 银行余额
+    private static int money = 0;
+
+    // 构造函数
+    public Bank (String bankName){
+        this.bankName = bankName;
+    }
+
+    // 获取银行当前余额
+    public int getBankBalance (){
+        return money;
+    }
+
+    // 向银行存钱
+    // static 可以实现在没有实例化对象时就调用这个方法
+    public static synchronized void Funds (int funds){
+        money += funds;
+    }
+}

01_Intellij_Java_universal_20240419/untitled/src/javaAssignment_20240528/Customer.java

@@ -0,0 +1,36 @@
+/*
+ *   Function: Java 课程实验 五 - 第二题 类 一
+ *   Date: 2024 05 28
+ *   Code by: JRNitre
+ * */
+
+package javaAssignment_20240528;
+
+public class Customer implements Runnable {
+    // 用户姓名
+    private String customerName;
+    // 存取次数
+    private int customerNum = 3;
+
+    // 构造函数
+    // public Customer (String customerName){
+    //     this.customerName = customerName;
+    // }
+
+    // 重写 run 方法
+    @Override
+    public void run() {
+        // 重复指定次数
+        for (int i = 0; i < this.customerNum; i++) {
+            // 输出用户存款信息
+            System.out.println("User: " + Thread.currentThread().getName() + " Deposit 100");
+            // 调用存款方法
+            deposit(100);
+        }
+    }
+
+    // 存款方法
+    private synchronized void deposit(int amount) {
+        Bank.Funds(amount);
+    }
+}

01_Intellij_Java_universal_20240419/untitled/src/javaAssignment_20240528/FlightSystem.java

@@ -0,0 +1,35 @@
+/*
+ *   Function: Java 课程实验 五 - 第一题 类
+ *   Date: 2024 05 28
+ *   Code by: JRNitre
+ * */
+
+package javaAssignment_20240528;
+
+public class FlightSystem implements Runnable{
+    // 售票窗口名
+    private String windowName;
+    // 剩余票数
+    private int tickets = 20;
+
+    // 构造函数
+    public FlightSystem(String windowName){
+        this.windowName = windowName;
+    }
+
+    // 重写 run 方法
+    @Override
+    public void run (){
+        while (tickets > 0){
+            Tickets();
+        }
+    }
+
+    // 售票方法
+    private synchronized void Tickets (){
+        if (this.tickets > 0){
+            --this.tickets;
+            System.out.println("Window: " + this.windowName + " Tickets were sold successfully Now remainder" + this.tickets);
+        }
+    }
+}

01_Intellij_Java_universal_20240419/untitled/src/javaAssignment_20240528/test.java

@@ -0,0 +1,74 @@
+/*
+ *   Function: Java 课程实验 五
+ *   Date: 2024 05 28
+ *   Code by: JRNitre
+ * */
+
+package javaAssignment_20240528;
+
+public class test {
+    public static void main (String[] args){
+        /*
+        *   用 Runnable 接口程序来模拟航班售票系统
+        *   1. 实现3个售票窗口发售某次航班的20张机票
+        *   2. 一个售票窗口用一个线程来表示。
+        *
+        *   Class: FlightSystem
+        *
+
+        FlightSystem window_1 = new FlightSystem("Window_alpha");
+        FlightSystem window_2 = new FlightSystem("Window_bravo");
+        FlightSystem window_3 = new FlightSystem("Window_charlie");
+
+        Thread t_1 = new Thread(window_1);
+        Thread t_2 = new Thread(window_2);
+        Thread t_3 = new Thread(window_3);
+
+        t_1.start();
+        t_2.start();
+        t_3.start();
+
+        */
+
+        /* ( つ•̀ω•́)つ :-D */
+
+        /*
+        *   1. 设某家银行可接受用户的存款，每进行一次存款，便可计算机出存款的总额。
+        *   2. 现有两名顾客，每人分3次、每次存入100元。
+        *
+        *   Class
+        *       1. Bank.java
+        *       2. Customer.java
+        */
+
+        // 通过 Bank 类实例化 b_1 对象
+        Bank b_1 = new Bank("Best Nigger Bank");
+
+        // 通过 Customer 实例化两个用户对象
+        Customer c_1 = new Customer();
+
+        // 通过 Thread 实例化两个线程类
+        Thread t_1 = new Thread(c_1, "Todd");
+        Thread t_2 = new Thread(c_1, "Todd Copy");
+
+        // 在开始存款前输出一次银行当前的余额
+        System.out.println("Now Bank Balance: " + b_1.getBankBalance());
+
+        // 开始执行两个线程
+        t_1.start();
+        t_2.start();
+
+        // 等待两个线程执行完毕
+        try {
+            t_1.join();
+            t_2.join();
+        } catch (InterruptedException e){
+            e.printStackTrace();
+        }
+
+        // 输出当前银行余额
+        System.out.println("Now Bank Balance: " + b_1.getBankBalance());
+
+        /**/
+    }
+}

01_Intellij_Java_universal_20240419/untitled/src/javaAssignment_20240614/function_01.java

@@ -0,0 +1,62 @@
+/*
+ *   Function: Java 课程实验 六 - 题目 01
+ *   Date: 2024 06 14
+ *   Code by: JRNitre
+ * */
+
+package javaAssignment_20240614;
+
+import javax.swing.*;
+import java.awt.*;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+
+public class function_01 extends Frame implements ActionListener{
+
+    Label userLabel, passLabel;
+    TextField userField;
+    JPasswordField passField;
+    Button loginButton;
+
+    public function_01() {
+        // 设置窗口属性
+        setTitle("User Login");
+        setSize(300, 200);
+        // setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+        setLayout(new FlowLayout());
+
+        // 添加组件
+        userLabel = new Label("User Id:");
+        add(userLabel);
+        userField = new TextField(15);
+        add(userField);
+
+        passLabel = new Label("Password:");
+        add(passLabel);
+        passField = new JPasswordField(15);
+        add(passField);
+
+        loginButton = new Button("Login");
+        loginButton.addActionListener(this);
+        add(loginButton);
+
+        setVisible(true);
+    }
+
+    public void actionPerformed(ActionEvent e) {
+        if (e.getSource() == loginButton) {
+            String username = userField.getText();
+            String password = new String(passField.getPassword());
+            if (isValidUser(username, password)) {
+                dispose(); // 关闭当前窗口
+                JOptionPane.showMessageDialog(null, "Login Done!");
+            } else {
+                JOptionPane.showMessageDialog(null, "Error!");
+            }
+        }
+    }
+
+    private boolean isValidUser(String username, String password) {
+        return "user".equals(username) && "pass".equals(password);
+    }
+}

01_Intellij_Java_universal_20240419/untitled/src/javaAssignment_20240614/function_02.java

@@ -0,0 +1,96 @@
+/*
+ *   Function: Java 课程实验 六 - 题目 02
+ *   Date: 2024 06 14
+ *   Code by: JRNitre
+ * */
+
+package javaAssignment_20240614;
+
+import java.awt.*;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import javax.swing.*;
+
+public class function_02 extends JFrame {
+    JLabel num1Label, num2Label, resultLabel;
+    JTextField num1Field, num2Field, resultField;
+    JComboBox<String> operationComboBox;
+    JButton calculateButton;
+
+    public function_02() {
+        super("计算器");
+
+        // 初始化组件
+        num1Label = new JLabel("数字1:");
+        num2Label = new JLabel("数字2:");
+        resultLabel = new JLabel("结果:");
+        num1Field = new JTextField(10);
+        num2Field = new JTextField(10);
+        resultField = new JTextField(10);
+        resultField.setEditable(false); // 结果字段不可编辑
+        operationComboBox = new JComboBox<>(new String[]{"+", "-", "*", "/"});
+        calculateButton = new JButton("计算");
+
+        // 添加动作监听器
+        calculateButton.addActionListener(new ActionListener() {
+            @Override
+            public void actionPerformed(ActionEvent e) {
+                calculate();
+            }
+        });
+
+        // 设置布局
+        setLayout(new GridLayout(4, 2));
+
+        // 添加组件到窗口
+        add(num1Label);
+        add(num1Field);
+        add(num2Label);
+        add(num2Field);
+        add(new JLabel()); // 空白占位
+        add(operationComboBox);
+        add(resultLabel);
+        add(resultField);
+        add(new JLabel()); // 空白占位
+        add(calculateButton);
+
+        // 设置窗口属性
+        setSize(300, 150);
+        setDefaultCloseOperation(EXIT_ON_CLOSE);
+        setLocationRelativeTo(null); // 居中显示
+        setVisible(true);
+    }
+
+    private void calculate() {
+        try {
+            double num1 = Double.parseDouble(num1Field.getText());
+            double num2 = Double.parseDouble(num2Field.getText());
+            String operation = (String) operationComboBox.getSelectedItem();
+            double result = 0;
+
+            switch (operation) {
+                case "+":
+                    result = num1 + num2;
+                    break;
+                case "-":
+                    result = num1 - num2;
+                    break;
+                case "*":
+                    result = num1 * num2;
+                    break;
+                case "/":
+                    if (num2 != 0)
+                        result = num1 / num2;
+                    else {
+                        JOptionPane.showMessageDialog(this, "除数不能为0!");
+                        return;
+                    }
+                    break;
+            }
+
+            resultField.setText(String.valueOf(result));
+        } catch (NumberFormatException ex) {
+            JOptionPane.showMessageDialog(this, "请输入有效的数字!");
+        }
+    }
+}

01_Intellij_Java_universal_20240419/untitled/src/javaAssignment_20240614/function_03.java

@@ -0,0 +1,62 @@
+/*
+ *   Function: Java 课程实验 六 - 题目 03
+ *   Date: 2024 06 14
+ *   Code by: JRNitre
+ * */
+
+package javaAssignment_20240614;
+
+import javax.swing.*;
+import java.awt.*;
+import java.awt.event.ItemEvent;
+import java.awt.event.ItemListener;
+
+public class function_03 {
+
+    public function_03(){
+        SwingUtilities.invokeLater(() -> {
+            createAndShowGUI();
+        });
+    }
+
+    private static void createAndShowGUI() {
+        JFrame frame = new JFrame("选项事件处理");
+        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+        frame.setLayout(new FlowLayout());
+
+        JTextArea textArea = new JTextArea("选顶事件ItemEvent的使用方法", 6, 20);
+        textArea.setEditable(false);
+        frame.add(textArea);
+
+        JRadioButton redButton = new JRadioButton("红色");
+        JRadioButton blueButton = new JRadioButton("蓝色");
+
+        ButtonGroup group = new ButtonGroup();
+        group.add(redButton);
+        group.add(blueButton);
+
+        ItemListener itemListener = new ItemListener() {
+            @Override
+            public void itemStateChanged(ItemEvent e) {
+                if (e.getStateChange() == ItemEvent.SELECTED) {
+                    Object source = e.getSource();
+
+                    if (source == redButton) {
+                        textArea.setForeground(Color.RED);
+                    } else if (source == blueButton) {
+                        textArea.setForeground(Color.BLUE);
+                    }
+                }
+            }
+        };
+
+        redButton.addItemListener(itemListener);
+        blueButton.addItemListener(itemListener);
+
+        frame.add(redButton);
+        frame.add(blueButton);
+
+        frame.pack();
+        frame.setVisible(true);
+    }
+}

01_Intellij_Java_universal_20240419/untitled/src/javaAssignment_20240614/test.java

@@ -0,0 +1,49 @@
+/*
+ *   Function: Java 课程实验 六
+ *   Date: 2024 06 14
+ *   Code by: JRNitre
+ * */
+
+package javaAssignment_20240614;
+
+public class test {
+    public static void main (String[] args){
+
+        /*
+        *   设计实现一个用户登录页面，当单击登录按钮用户名密码正确跳转到计算页面。
+        *
+        *   Class: function_01.java
+        *
+
+        function_01 f_1 = new function_01();
+
+        */
+
+        /* ( つ•̀ω•́)つ :-D */
+
+        /*
+        *   设计实现一个计算页面，实现两个数的加法、减法、乘法和除法运算。
+        *
+        *   Class: function_02.java
+        *
+
+        function_02 f_2 = new function_02();
+
+        */
+
+        /* ( つ•̀ω•́)つ :-D */
+
+        /*
+        *   编写一个应用程序，标题为“选项事件处理”的窗口，窗口布局为FlowLayout。
+        *   设计两个单选按钮，一个文本区。
+        *   单击单选按钮时，将文本区中的文字设置成为相应颜色的字体。
+        *
+        *   Class: function_03.java
+        *
+
+        function_03 f_3 = new function_03();
+
+        */
+
+    }
+}

01_Intellij_Java_universal_20240419/untitled/src/javaPackage_20240514/Bus.java

@@ -0,0 +1,8 @@
+package javaPackage_20240514;
+
+public class Bus implements Charge{
+    @Override
+    public void charge() {
+        System.out.println("PublicBus: 1$/sheet, no limit kilometers");
+    }
+}

01_Intellij_Java_universal_20240419/untitled/src/javaPackage_20240514/Charge.java

@@ -0,0 +1,5 @@
+package javaPackage_20240514;
+
+public interface Charge {
+    public void charge();
+}

01_Intellij_Java_universal_20240419/untitled/src/javaPackage_20240514/Cinema.java

@@ -0,0 +1,12 @@
+package javaPackage_20240514;
+
+public class Cinema implements Charge, Play{
+
+    public void charge() {
+        System.out.println("Cinema: 30$/sheet, enjoy half price with student id");
+    }
+
+    public void play(){
+        System.out.println("Showing movie");
+    }
+}

01_Intellij_Java_universal_20240419/untitled/src/javaPackage_20240514/Play.java

@@ -0,0 +1,5 @@
+package javaPackage_20240514;
+
+public interface Play {
+    public void play();
+}

01_Intellij_Java_universal_20240419/untitled/src/javaPackage_20240514/Taxi.java

@@ -0,0 +1,8 @@
+package javaPackage_20240514;
+
+public class Taxi implements Play{
+
+    public void play(){
+        System.out.println("Taxi: 1.6$/kilometer, Starting 3 kilometer");
+    }
+}

01_Intellij_Java_universal_20240419/untitled/src/javaPackage_20240514/test.java

@@ -0,0 +1,38 @@
+/*
+ *   Function: 20240516 面向对象程序设计课程实验 NO.2
+ *   Date: 2024 05 16
+ *   Code by: JRNitre
+ * */
+
+package javaPackage_20240514;
+
+public class test {
+
+    /*
+    *   1. 创建一个收费接口 Charge, 其中有一个抽象方法 charge();
+    *   2. 创建另一个收费接口 Play, 其中有一个抽象方法 play();
+    *
+    *   3. 声明 Bus 类来实现接口 Charge, 对于 Bus 类中的 charge(); 实现为输出:
+    *       "公共汽车: 1元/张, 不计公里数" PublicBus: 1 $/sheet no limit kilometers
+    *   4. 声明 Taxi 类来实现接口 Charge, 对于 Taxi 中的 charge(); 实现为输出:
+    *       "出租车: 1.6元/公里, 起价3公里" Taxi: 1.6$/Kilometer, Starting 3 Kilometer
+    *   5. 声明 Cinema 类来实现接口 Charge, 对于 Cinema 中的 charge(); 实现为输出:
+    *       "解放电影院: 30元/张, 凭学生证享受半价" Cinema: 30$/sheet, Enjoy half price with student ID
+    *      对于 Cinema 中的 play(); 实现为输出:
+    *       "正在放映电影" Showing movie
+    *
+    *   6. 在主类中创建对象, 输出结果
+    * */
+
+    public static void main(String[] args){
+        Bus b1 = new Bus();
+        Taxi t1 = new Taxi();
+        Cinema c1 = new Cinema();
+
+        b1.charge();
+        t1.play();
+
+        c1.charge();
+        c1.play();
+    }
+}

01_Intellij_Java_universal_20240419/untitled/src/javaPackage_20240524/function.java

@@ -0,0 +1,91 @@
+package javaPackage_20240524;
+
+import java.io.*;
+import java.security.SecureRandom;
+
+public class function {
+    // 数组长度
+    private int ArrayMaxLength;
+
+    private String fileName;
+
+    public int[] createRandomArray(int num, int min, int max){
+        this.ArrayMaxLength = num;
+        int[] array = new int[this.ArrayMaxLength];
+        SecureRandom secureRandom = new SecureRandom();
+        for (int i = 0; i < this.ArrayMaxLength; i++){
+            array[i] = min + secureRandom.nextInt(max - min + 1);
+        }
+        System.out.println("Create Random Array Done!");
+        return array;
+    }
+
+    public void createFile (String fileName){
+        this.fileName = fileName;
+        File file = new File(fileName);
+        try {
+            if (file.createNewFile()){
+                System.out.println("Create file Done!");
+            } else {
+                System.out.println("Create file Error!");
+            }
+        } catch (IOException ioe){
+            System.out.println("Create file Error!");
+            ioe.printStackTrace();
+        }
+    }
+
+    public void writeFile (String data){
+        try {
+            BufferedWriter writer = new BufferedWriter(new FileWriter(this.fileName));
+            writer.write(data);
+            writer.close();
+            System.out.println("Writer Done!");
+        } catch (IOException ioe){
+            System.out.println("Writer Error!");
+        }
+    }
+
+    public int[] readeFileToInt(){
+        try {
+            BufferedReader reader = new BufferedReader(new FileReader(this.fileName));
+            String line = reader.readLine();
+
+            String[] arrayStr = line.split("-");
+
+            int[] arrayInt = new int[this.ArrayMaxLength];
+            for (int i = 0; i < this.ArrayMaxLength; i++){
+                arrayInt[i] = Integer.parseInt(arrayStr[i]);
+            }
+            System.out.println("Reader File Done!");
+            return arrayInt;
+        } catch (IOException ioe){
+            System.out.println("Reader File Error!");
+            return new int[0];
+        }
+    }
+
+    public void bubbleSort(int[] array){
+        int m = array.length;
+
+        for (int i = 0; i < m; i++){
+            for (int j = 0; j < m - i - 1; i++){
+                if (array[j] > array[j+1]){
+                    int temp = array[j];
+                    array[j] = array[j + 1];
+                    array[j + 1] = temp;
+                }
+            }
+        }
+
+        System.out.println("Sort Done!");
+
+        for (int k = 0; k < m; k++){
+            System.out.print(array[k]);
+            if (k != m - 1){
+                System.out.print(" - ");
+            }
+        }
+    }
+
+}

01_Intellij_Java_universal_20240419/untitled/src/javaPackage_20240524/test.java

@@ -0,0 +1,27 @@
+package javaPackage_20240524;
+
+public class test {
+    public static void main (String[] args){
+        /*
+         *   1. 产生 15 个 20~9999 之间的随机整数
+         *   2. 利用 BufferedWriter 类将其写入文件 file2.txt 中
+         *   3. 读取该文件中的数据并升序排序
+         */
+        function f_1 = new function();
+
+        int array[] = f_1.createRandomArray(15, 20, 9999);
+
+        f_1.createFile("file2.txt");
+        StringBuilder s_1 = new StringBuilder();
+        for (int i = 0; i < array.length; i++){
+            s_1.append(array[i]);
+            if (i != array.length - 1){
+                s_1.append("-");
+            }
+        }
+
+        f_1.writeFile(s_1.toString());
+
+        f_1.bubbleSort(f_1.readeFileToInt());
+    }
+}

01_Intellij_Java_universal_20240419/untitled/src/javaPackage_20240531/bank.java

@@ -0,0 +1,19 @@
+package javaPackage_20240531;
+
+public class bank {
+    private static int money;
+
+    private String bankNmae;
+
+    public bank (String name){
+        this.bankNmae = name;
+    }
+
+    public int getMoney(){
+        return money;
+    }
+
+    public static synchronized void add (int n){
+        money += n;
+    }
+}

01_Intellij_Java_universal_20240419/untitled/src/javaPackage_20240531/customer.java

@@ -0,0 +1,19 @@
+package javaPackage_20240531;
+
+public class customer implements Runnable{
+
+    private static final int num = 3;
+
+    @Override
+    public void run(){
+        for (int i = 0; i < num; i++){
+            System.out.println("User: " + Thread.currentThread().getName() + " add 100");
+            customerAdd(100);
+        }
+    }
+
+    public synchronized void customerAdd(int n){
+        bank.add(n);
+    }
+
+}

01_Intellij_Java_universal_20240419/untitled/src/javaPackage_20240531/test.java

@@ -0,0 +1,28 @@
+package javaPackage_20240531;
+
+public class test {
+    public static void main (String[] args){
+        /*
+         *   1. 设某家银行可接受用户的存款，每进行一次存款，便可计算出存款的总额。
+         *   2. 现有两名顾客，每人分3次、每次存入100元。
+         */
+
+        bank b = new bank("Bank");
+        customer c = new customer();
+
+        Thread t_1 = new Thread(c, "todd");
+        Thread t_2 = new Thread(c, "Copy todd");
+
+        System.out.println("Now Bank: " + b.getMoney());
+
+        t_1.start();
+        t_2.start();
+
+        try {
+            t_1.join();
+            t_2.join();
+        } catch (Exception e){}
+
+        System.out.println("Now Bank: " + b.getMoney());
+    }
+}

01_Intellij_Java_universal_20240419/untitled/src/learn_20240419/Main.java

@@ -0,0 +1,7 @@
+package learn_20240419;
+
+public class Main {
+    public static void main (String[] args){
+        System.out.println("test");
+    }
+}

02_Intellij_Java_CourseExperiment_20240611/CourseExperiment/.gitignore

@@ -0,0 +1,29 @@
+### IntelliJ IDEA ###
+out/
+!**/src/main/**/out/
+!**/src/test/**/out/
+
+### Eclipse ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+bin/
+!**/src/main/**/bin/
+!**/src/test/**/bin/
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+
+### VS Code ###
+.vscode/
+
+### Mac OS ###
+.DS_Store

02_Intellij_Java_CourseExperiment_20240611/CourseExperiment/.idea/.gitignore

@@ -0,0 +1,3 @@
+# 默认忽略的文件
+/shelf/
+/workspace.xml

02_Intellij_Java_CourseExperiment_20240611/CourseExperiment/.idea/codeStyles/codeStyleConfig.xml

@@ -0,0 +1,5 @@
+<component name="ProjectCodeStyleConfiguration">
+  <state>
+    <option name="PREFERRED_PROJECT_CODE_STYLE" value="Default" />
+  </state>
+</component>

02_Intellij_Java_CourseExperiment_20240611/CourseExperiment/.idea/encodings.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Encoding">
+    <file url="file://$PROJECT_DIR$/src/ElmAdminEntry.java" charset="GBK" />
+    <file url="file://$PROJECT_DIR$/src/ElmBusinessEntry.java" charset="GBK" />
+    <file url="file://$PROJECT_DIR$/src/View/AdminView.java" charset="GBK" />
+    <file url="file://$PROJECT_DIR$/src/View/BusinessView.java" charset="GBK" />
+    <file url="file://$PROJECT_DIR$/src/View/Display.java" charset="GBK" />
+    <file url="file://$PROJECT_DIR$/src/dao/AdminDaoImpl.java" charset="GBK" />
+    <file url="file://$PROJECT_DIR$/src/dao/BusinessDaoImpl.java" charset="GBK" />
+    <file url="file://$PROJECT_DIR$/src/jdbc/JDBC.java" charset="GBK" />
+  </component>
+</project>