第七次实验课代码

添加C04~C07

.idea/.gitignore

@@ -0,0 +1,8 @@
+# 默认忽略的文件
+/shelf/
+/workspace.xml
+# 基于编辑器的 HTTP 客户端请求
+/httpRequests/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml

.idea/MarsCodeWorkspaceAppSettings.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="com.codeverse.userSettings.MarscodeWorkspaceAppSettingsState">
+    <option name="progress" value="1.0" />
+  </component>
+</project>

.idea/misc.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_21" default="true" project-jdk-name="21" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/out" />
+  </component>
+</project>

.idea/modules.xml

@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/C02 Expresion/C02 Expresion.iml" filepath="$PROJECT_DIR$/C02 Expresion/C02 Expresion.iml" />
+      <module fileurl="file://$PROJECT_DIR$/C03 ControlFlow/C03 ControlFlow.iml" filepath="$PROJECT_DIR$/C03 ControlFlow/C03 ControlFlow.iml" />
+      <module fileurl="file://$PROJECT_DIR$/C04 ClassDefine/C04 ClassDefine.iml" filepath="$PROJECT_DIR$/C04 ClassDefine/C04 ClassDefine.iml" />
+      <module fileurl="file://$PROJECT_DIR$/C05 Extends/C05 Extends.iml" filepath="$PROJECT_DIR$/C05 Extends/C05 Extends.iml" />
+      <module fileurl="file://$PROJECT_DIR$/C06 Polymorphism/C06 Polymorphism.iml" filepath="$PROJECT_DIR$/C06 Polymorphism/C06 Polymorphism.iml" />
+      <module fileurl="file://$PROJECT_DIR$/C07 StaticAndEnum/C07 StaticAndEnum.iml" filepath="$PROJECT_DIR$/C07 StaticAndEnum/C07 StaticAndEnum.iml" />
+      <module fileurl="file://$PROJECT_DIR$/ClassOfJava.iml" filepath="$PROJECT_DIR$/ClassOfJava.iml" />
+    </modules>
+  </component>
+</project>

.idea/vcs.xml

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

C03 ControlFlow/src/EncryptDemo.java

@@ -13,7 +13,7 @@ public class EncryptDemo {
 
 //        for(char c:enc)
 //            System.out.print(c);
-        System.out.println(Arrays.toString(enc));
+        System.out.println("密文："+Arrays.toString(enc));
 
         char[] dec= new char[enc.length];
         for(int i=0;i<str.length();i++)
@@ -21,6 +21,6 @@ public class EncryptDemo {
 
 //        for(char c:dec)
 //            System.out.print(c);
-        System.out.println(Arrays.toString(dec));
+        System.out.println("明文："+Arrays.toString(dec));
     }
 }

C03 ControlFlow/src/NumberCounter.java

@@ -9,7 +9,6 @@ public class NumberCounter {
             hash[(int)(num%10)]++;
             num/=10;
         }
-
         for(int i : hash)
             System.out.print(i+" ");
         System.out.println();

C04 ClassDefine/C04 ClassDefine.iml

@@ -0,0 +1,11 @@
+<?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://$MODULE_DIR$/src" isTestSource="false" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>

C04 ClassDefine/src/Hero.java

@@ -0,0 +1,68 @@
+public class Hero {
+    String name;//名称
+    char sex;//性别
+    int cost;//费用
+    int health;//生命值
+    int magic;//魔法值
+    int attack;//攻击力
+    int level;//等级(1-3) 1
+    int physicalResist;//物理抗性
+    int magicResist;//魔法抗性
+
+    //升级行为方法
+    public void levelUp(){
+        if (level < 3) {
+            this.level++;
+            this.health = (int) (this.health * 1.5);
+            this.attack = (int) (this.attack * 1.5);
+            System.out.format("%s升级到%d级\n", this.name, this.level);
+        }
+
+    }
+
+    //攻击行为方法
+    public void attack(Hero target){
+        if(this.health>0) {
+            int damage = calculateDamage(attack, target.physicalResist);
+            System.out.format("%s攻击了%s，造成了%d点伤害\n", name, target.name, attack);
+            //必须为有效伤害
+            if (damage > 0)
+                target.takeDamage(damage);
+            else
+                System.out.println("攻击失败");
+        }
+        else
+            System.out.println(name+"已死亡，攻击失败");
+    }
+
+    //受到伤害行为方法
+    public void takeDamage(int damage){
+        health -= damage;
+        health=Math.max(health,0);
+        if(health>0)
+            System.out.format("%s受到了%d点伤害，剩余生命值%d\n",name,damage,health);
+        else
+            System.out.format("%s受到了%d点伤害，剩余生命值为0，已被击败\n",name,damage);
+    }
+
+    private int calculateDamage(int damage,int resist){
+        return (int)(damage*1.0/(1+resist*1.0/100));
+    }
+
+    //无参构造器
+    public Hero() {
+        this.level=1;
+    }
+    //有参构造器
+    public Hero(String name, char sex, int cost, int health, int magic, int attack, int physicalResist, int magicResist) {
+        this();//在有参构造器中调用无参构造器
+        this.name = name;
+        this.sex = sex;
+        this.cost = cost;
+        this.health = health;
+        this.magic = magic;
+        this.attack = attack;
+        this.physicalResist = physicalResist;
+        this.magicResist = magicResist;
+    }
+}

C04 ClassDefine/src/Test.java

@@ -0,0 +1,38 @@
+public class Test {
+    public static void main(String[] args) {
+        //1.无参构造器，逐一赋值
+        Hero almin = new Hero();
+        almin.name="almin";
+        almin.sex='m';
+        almin.cost=1;
+        almin.health=1000;
+        almin.magic=100;
+        almin.attack=60;
+        almin.physicalResist=50;
+        almin.magicResist=50;
+        System.out.println(almin.name);
+        System.out.println(almin.health);
+        System.out.println(almin.level);
+        //2.有参构造器
+        Hero alen = new Hero("alen",'m',1,600,100,60,100,50);
+        System.out.println(alen.name);
+        System.out.println(alen.health);
+        System.out.println(alen.level);
+
+
+        //3.攻击
+        //almin.attack(alen);
+        System.out.println("游戏开始");
+        alen.levelUp();
+        int round = 0;
+        while(almin.health>0 && alen.health>0){
+            round++;
+            System.out.println("第"+round+"回合");
+            almin.attack(alen);
+            alen.attack(almin);
+            System.out.println("=====================");
+        }
+        System.out.format("%s获胜，%s失败",almin.health==0?alen.name:almin.name,
+                almin.health==0?almin.name:alen.name);
+    }
+}

C05 Extends/C05 Extends.iml

@@ -0,0 +1,11 @@
+<?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://$MODULE_DIR$/src" isTestSource="false" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>

C05 Extends/src/shape/Circle.java

@@ -0,0 +1,35 @@
+package shape;
+import java.awt.*;
+
+public class Circle extends Shape {
+    private int radius;
+
+    @Override
+    public double getArea(){
+        return Math.PI*radius*radius;
+    }
+
+    @Override
+    public double getPerimeter(){
+        return 2*Math.PI*radius;
+    }
+    @Override
+    public void draw(Graphics g) {
+        g.setColor(color);
+        // 绘制圆形
+        g.fillOval(x - radius, y - radius, radius * 2, radius * 2);
+
+        // 绘制信息
+        g.setColor(Color.BLACK);
+        g.drawString(String.format("面积: %.2f", getArea()), x + radius + 5, y);
+        g.drawString(String.format("周长: %.2f", getPerimeter()), x + radius + 5, y + 15);
+    }
+
+    public Circle(){
+        this(Color.RED,100,100,50);
+    }
+    public Circle(Color color,int x,int y,int radius){
+        super(color,x,y);
+        this.radius=radius;
+    }
+}

C05 Extends/src/shape/Rectangle.java

@@ -0,0 +1,14 @@
+package shape;
+import java.awt.*;
+
+public class Rectangle extends Shape {
+    private int width,height;
+    public Rectangle() {
+        super();
+    }
+     public Rectangle(Color color, int x, int y, int width, int height) {
+        super(color, x, y);
+        this.width = width;
+        this.height = height;
+    }
+}

C05 Extends/src/shape/Shape.java

@@ -0,0 +1,52 @@
+package shape;
+import java.awt.*;
+
+public class Shape {
+    protected Color color;
+    protected int x,y;
+
+    public void setColor(Color color) {
+        this.color = color;
+    }
+    public Color getColor() {
+        return color;
+    }
+    public double getArea(){
+        return x*y;
+    }
+
+    public void setX(int x){
+        this.x=x;
+    }
+    public int getX(){
+        return x;
+    }
+
+    public void setY(int y){
+        this.y=y;
+    }
+    public int getY(){
+        return y;
+    }
+
+    public double getPerimeter(){
+        return x*y;
+    }
+
+    public void move(int dx,int dy){
+        x += dx;
+        y += dy;
+    }
+
+    public void draw(Graphics g){
+        g.setColor(color);
+        g.fillRect(x,y,1,1);
+    }
+
+    Shape(){}
+    Shape(Color color,int x,int y){
+        this.color=color;
+        this.x=x;
+        this.y=y;
+    }
+}

C05 Extends/src/test/ShapeDrawerTest.java

@@ -0,0 +1,55 @@
+package test;
+
+import javax.swing.*;
+import java.awt.*;
+import shape.Circle;
+
+public class ShapeDrawerTest extends JFrame {
+    /*******请在下面添加**************/
+    // 【任务1】定义一个包含5个元素的圆形数组
+    Circle[] circles = new Circle[5];
+    /*******请在上面添加**************/
+
+    // 初始化图形
+    private void initShapes() {
+        /*******请在下面添加**************/
+        // 【任务2】采用无参构造添加一个红色，坐标为(100,100)，半径为50的圆形，并加入对应数组
+        circles[0] = new Circle();
+        // 【任务3】采用有参构造添加一个黄色，坐标为(150,300)，半径为70的圆形，并加入对应数组
+        circles[1] = new Circle(Color.YELLOW, 150, 300, 70);
+        circles[2] = new Circle();
+        circles[3] = new Circle();
+        circles[4] = new Circle();
+        /*******请在上面添加**************/
+    }
+
+    // 重写绘制方法
+    @Override
+    public void paint(Graphics g) {
+        super.paint(g);
+        /*******请在下面添加**************/
+        // 绘制所有图形
+        // 【任务4】采用增强型for循环绘制所有图形
+        for (Circle circle : circles) {
+            circle.draw(g);
+        }
+        /*******请在上面添加**************/
+        // 绘制标题
+        g.setColor(Color.BLACK);
+        g.drawString("Java继承图形绘制示例", 300, 30);
+    }
+    public ShapeDrawerTest() {
+        // 初始化窗口
+        setTitle("图形绘制程序");
+        setSize(800, 600);
+        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+        setLocationRelativeTo(null);
+
+        // 创建各种图形对象
+        initShapes();
+    }
+    public static void main(String[] args) {
+        new ShapeDrawerTest().setVisible(true);
+    }
+}
+

C06 Polymorphism/C06 Polymorphism.iml

@@ -0,0 +1,11 @@
+<?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://$MODULE_DIR$/src" isTestSource="false" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>

C06 Polymorphism/src/shape/Circle.java

@@ -0,0 +1,49 @@
+package shape;
+import java.awt.*;
+
+public class Circle extends Shape {
+    private int radius;
+
+    public void setRadius(int r) {
+        radius = r;
+    }
+
+    public int getRadius() {
+        return radius;
+    }
+    @Override
+    public double getArea(){
+        return Math.PI*radius*radius;
+    }
+
+    @Override
+    public double getPerimeter(){
+        return 2*Math.PI*radius;
+    }
+    @Override
+    public void draw(Graphics g) {
+        g.setColor(color);
+        // 绘制圆形
+        g.fillOval(x - radius, y - radius, radius * 2, radius * 2);
+
+        // 绘制信息
+        g.setColor(Color.BLACK);
+        g.drawString(String.format("面积: %.2f", getArea()), x + radius + 5, y);
+        g.drawString(String.format("周长: %.2f", getPerimeter()), x + radius + 5, y + 15);
+    }
+    public void drawCenterMark(Graphics g) {
+        g.setColor(Color.BLACK);
+        g.drawLine(x-5,y,x+5,y);
+        g.drawLine(x,y-5,x,y+5);
+        g.drawString("O", x+5, y+5);
+    }
+
+    public Circle(){
+        super();
+    }
+    public Circle(Color color,int x,int y,int radius){
+        super(color,x,y);
+        this.radius=radius;
+    }
+
+}

C06 Polymorphism/src/shape/Rectangle.java

@@ -0,0 +1,56 @@
+package shape;
+import java.awt.*;
+
+public class Rectangle extends Shape {
+    private int width,height;
+
+    public void setWidth(int width) {
+        this.width = width;
+    }
+
+    public void setHeight(int height) {
+        this.height = height;
+    }
+
+    public int getHeight() {
+        return height;
+    }
+
+    public int getWidth() {
+        return width;
+    }
+
+    @Override
+    public double getArea() {
+        return width*height;
+    }
+     @Override
+    public double getPerimeter() {
+        return 2*(width+height);
+    }
+    @Override
+    public void draw(Graphics g) {
+        g.setColor(color);
+        g.fillRect(x, y, width, height);
+        // 绘制信息
+        g.setColor(Color.BLACK);
+        g.drawString(String.format("面积: %.2f", getArea()), x + width + 5, y);
+        g.drawString(String.format("周长: %.2f", getPerimeter()), x + width + 5, y + 15);
+    }
+
+    public void drawDiagonals(Graphics g) {
+        g.setColor(Color.BLACK);
+        g.drawLine(x, y, x+width, y+height);
+        g.drawLine(x, y+height, x+width, y);
+    }
+
+    public Rectangle() {
+        super();
+    }
+
+    public Rectangle(Color color, int x, int y, int width, int height) {
+        super(color, x, y);
+        this.width = width;
+        this.height = height;
+    }
+}

C06 Polymorphism/src/shape/Shape.java

@@ -0,0 +1,52 @@
+package shape;
+import java.awt.*;
+
+public class Shape {
+    protected Color color;
+    protected int x,y;
+
+    public void setColor(Color color) {
+        this.color = color;
+    }
+    public Color getColor() {
+        return color;
+    }
+    public double getArea(){
+        return x*y;
+    }
+
+    public void setX(int x){
+        this.x=x;
+    }
+    public int getX(){
+        return x;
+    }
+
+    public void setY(int y){
+        this.y=y;
+    }
+    public int getY(){
+        return y;
+    }
+
+    public double getPerimeter(){
+        return x*y;
+    }
+
+    public void move(int dx,int dy){
+        x += dx;
+        y += dy;
+    }
+
+    public void draw(Graphics g){
+        g.setColor(color);
+        g.fillRect(x,y,1,1);
+    }
+
+    Shape(){}
+    Shape(Color color,int x,int y){
+        this.color=color;
+        this.x=x;
+        this.y=y;
+    }
+}

C06 Polymorphism/src/test/ShapeDrawerTest.java

@@ -0,0 +1,77 @@
+package test;
+
+import shape.Circle;
+import shape.Rectangle;
+import javax.swing.*;
+import java.awt.*;
+
+public class ShapeDrawerTest extends JFrame {
+    /*******请在下面添加**************/
+    // 【任务1】定义一个包含5个元素的圆形数组
+    Circle[] circles = new Circle[5];
+    Rectangle[] rectangles = new Rectangle[2];
+    private shape.Shape[] shapes = new shape.Shape[4];
+
+    /*******请在上面添加**************/
+
+    // 初始化图形
+    private void initShapes() {
+        /*******请在下面添加**************/
+        // 【任务2】采用无参构造添加一个红色，坐标为(100,100)，半径为50的圆形，并加入对应数组
+        shapes[0] = new Circle();
+        ((Circle)shapes[0]).setX(100);
+        ((Circle)shapes[0]).setY(100);
+        ((Circle)shapes[0]).setRadius(50);
+        ((Circle)shapes[0]).setColor(Color.RED);
+        // 【任务3】采用有参构造添加一个黄色，坐标为(150,300)，半径为70的圆形，并加入对应数组
+        shapes[1] = new Circle(Color.YELLOW, 150, 300, 70);
+        // 【任务4】采用无参构造添加一个绿色，坐标为(250,80)，宽为100，高为80的矩形，并加入对应数组
+        shapes[2] = new Rectangle();
+        ((Rectangle)shapes[2]).setX(250);
+        ((Rectangle)shapes[2]).setY(80);
+        ((Rectangle)shapes[2]).setWidth(100);
+        ((Rectangle)shapes[2]).setHeight(80);
+        ((Rectangle)shapes[2]).setColor(Color.GREEN);
+        // 【任务5】采用有参构造添加一个粉色，坐标为(300,300)，宽为120，高为60的矩形
+        shapes[3] = new Rectangle(Color.PINK, 300, 300, 120, 60);
+        // 【任务6】下移动第二个矩形50个单位
+        ((Rectangle)shapes[3]).setY(this.getY()-50);
+        /*******请在上面添加**************/
+    }
+
+    // 重写绘制方法
+    @Override
+    public void paint(Graphics g) {
+        super.paint(g);
+        /*******请在下面添加**************/
+        // 绘制所有图形
+        // 【任务4】采用增强型for循环绘制所有图形
+        for (shape.Shape shape : shapes) {
+            shape.draw(g);
+            if (shape instanceof Circle) {
+                ((Circle)shape).drawCenterMark(g);
+            }
+            if (shape instanceof Rectangle) {
+                ((Rectangle)shape).drawDiagonals(g);
+            }
+        }
+        /*******请在上面添加**************/
+        // 绘制标题
+        g.setColor(Color.BLACK);
+        g.drawString("Java继承图形绘制示例", 300, 50);
+    }
+    public ShapeDrawerTest() {
+        // 初始化窗口
+        setTitle("图形绘制程序");
+        setSize(800, 600);
+        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+        setLocationRelativeTo(null);
+
+        // 创建各种图形对象
+        initShapes();
+    }
+    public static void main(String[] args) {
+        new ShapeDrawerTest().setVisible(true);
+    }
+}
+

C07 StaticAndEnum/C07 StaticAndEnum.iml

@@ -0,0 +1,11 @@
+<?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://$MODULE_DIR$/src" isTestSource="false" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>

C07 StaticAndEnum/src/CaptchaUtils.java

@@ -0,0 +1,52 @@
+import java.util.*;
+
+/**
+ * 验证码工具类
+ */
+public class CaptchaUtils {  // final修饰类：不能被继承
+    // 【任务1】静态常量：字符集（全局固定）
+    static final String CHAR_SET="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
+
+    // 【任务2】静态常量：验证码长度（全局固定）
+    static final int CAPTCHA_LENGTH=4;
+
+    // 【任务3】私有构造方法：禁止创建实例（工具类无需实例化）
+    private CaptchaUtils(){
+    }
+
+    /**
+     * 【任务4】
+     * 静态方法：generateCaptcha 生成随机验证码
+     * @return String 返回生成的随机验证码字符串
+     */
+    public static String generateCaptcha(){
+        Random random = new Random();
+        //生成随机验证码
+        StringBuilder sb = new StringBuilder();
+        for(int i=0;i<CAPTCHA_LENGTH;i++){
+            //生成随机数索引
+            int index = random.nextInt(CHAR_SET.length());
+            //根据索引获取随机字符
+            sb.append(CHAR_SET.charAt(index));
+        }
+        return sb.toString();
+    }
+    /**
+     * 【任务5】
+     * 静态方法：verifyCaptcha 验证验证码 
+     * @param inputCaptcha 用户输入的验证码
+     * @param systemCaptcha 系统生成的验证码
+     * @return boolean 验证结果，true表示验证通过，false表示验证失败
+     */
+    public static boolean verifyCaptcha(String inputCaptcha,String systemCaptcha){
+        return inputCaptcha.equalsIgnoreCase(systemCaptcha);
+    }
+
+    public static void main(String[] args) {
+        for(int i=0;i<10;i++)
+            System.out.println(generateCaptcha());
+
+        System.out.println(CaptchaUtils.verifyCaptcha(generateCaptcha(), generateCaptcha()));
+    }
+
+}

C07 StaticAndEnum/src/LoginStatus.java

@@ -0,0 +1,72 @@
+ /**
+  * 登录状态枚举类
+  * 用final保证状态信息不可变，用static提供工具方法
+  */
+ public enum LoginStatus {
+        // 【任务3】枚举实例：状态码和描述
+        // 成功登录
+        SUCCESS(200,"登录成功"),
+        // 密码错误
+        PASSWORD_ERROR(901,"密码错误"),
+        // 验证码错误
+        CAPTCHA_ERROR(902,"验证码错误"),
+        // 用户不存在
+        USER_NOT_FOUND(903,"用户不存在");
+
+
+
+        // 【任务1】定义 final修饰的属性：确保状态信息不可修改
+        private final int code;
+        private final String msg;
+
+
+
+        /**
+         * 【任务2】
+         * 构造函数，用于创建LoginStatus实例
+         * @param code 状态码
+         * @param msg 状态消息
+         */
+        LoginStatus(int code, String msg) {
+            this.code = code;
+            this.msg = msg;
+        }
+
+        // 静态方法：根据状态码获取枚举实例（static工具方法）
+        /**
+         * 【任务4】
+         * 静态方法： getByCode 根据状态码获取对应的登录状态枚举值
+         * @param code 状态码
+         * @return LoginStatus 对应的LoginStatus枚举值，如果找不到匹配的状态码则返回null
+         */
+        public static LoginStatus getByCode(int code){
+            for(LoginStatus status:values()){
+                if(status.code==code){
+                    return status;
+                }
+            }
+            return null;
+        }
+
+        // getter方法（final属性无需setter）
+        /**
+         * 【任务5】
+         * 方法： getCode 获取code值
+         *
+         * @return int code值
+         */
+        public int getCode() {
+            return code;
+        }
+
+        /**
+         * 任务【6】
+         * 方法： getMsg 获取消息内容
+         *
+         * @return String 返回当前对象的消息字符串
+         */
+        public String getMsg() {
+            return msg;
+        }
+ }
+

C07 StaticAndEnum/src/Test.java

@@ -0,0 +1,55 @@
+import java.util.Scanner;
+
+public class Test {
+    public static void main(String[] args) {
+        Scanner scanner = new Scanner(System.in);
+        while (true) {
+            // 1. 生成验证码并展示
+            String systemCaptcha = CaptchaUtils.generateCaptcha();  // 调用静态方法
+            System.out.println("【登录】验证码：" + systemCaptcha);
+
+            // 2. 输入用户信息
+            System.out.print("请输入用户名：");
+            String username = scanner.nextLine();
+            System.out.print("请输入密码：");
+            String password = scanner.nextLine();
+            System.out.print("请输入验证码：");
+            String inputCaptcha = scanner.nextLine();
+
+            // 3. 验证登录（模拟业务逻辑）
+            LoginStatus status = checkLogin(username, password, inputCaptcha, systemCaptcha);
+
+            // 4. 【任务2】输出登录结果：打印具体的登录结果和状态码
+            System.out.println("\n登录结果："  + status.getMsg() + "（状态码："  + status.getCode() + "）");
+            System.out.println("===================================\n");
+        }
+    }
+
+     /**
+     * 【任务1】
+     * 静态方法： checkLogin 模拟登录验证逻辑
+     * @param String username 用户名
+     * @param String password 密码
+     * @param String inputCaptcha 用户输入的验证码
+     * @param String systemCaptcha 系统生成的验证码
+     * @return LoginStatus 登录状态枚举，表示验证结果
+     */
+
+     public static LoginStatus checkLogin(String username, String password, String inputCaptcha, String systemCaptcha) {
+        //admin 123456
+         // 1.校验验证码是否正确
+         if (!CaptchaUtils.verifyCaptcha(inputCaptcha, systemCaptcha)) {
+             return LoginStatus.CAPTCHA_ERROR;
+         }
+        // 2.校验用户名是否正确
+         if(!username.equals("admin")){
+             return LoginStatus.USER_NOT_FOUND;
+         }
+        // 3.校验密码是否正确
+        if(!password.equals("123456")){
+            return LoginStatus.PASSWORD_ERROR;
+        }
+        // 如果以上验证都通过，返回成功状态
+        return LoginStatus.SUCCESS;
+    }
+}