diff --git a/.idea/.gitignore b/.idea/.gitignore
new file mode 100644
index 0000000..35410ca
--- /dev/null
+++ b/.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
diff --git a/.idea/MarsCodeWorkspaceAppSettings.xml b/.idea/MarsCodeWorkspaceAppSettings.xml
new file mode 100644
index 0000000..e2a065b
--- /dev/null
+++ b/.idea/MarsCodeWorkspaceAppSettings.xml
@@ -0,0 +1,6 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/misc.xml b/.idea/misc.xml
new file mode 100644
index 0000000..6f29fee
--- /dev/null
+++ b/.idea/misc.xml
@@ -0,0 +1,6 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/modules.xml b/.idea/modules.xml
new file mode 100644
index 0000000..d19f3f8
--- /dev/null
+++ b/.idea/modules.xml
@@ -0,0 +1,14 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/vcs.xml b/.idea/vcs.xml
new file mode 100644
index 0000000..35eb1dd
--- /dev/null
+++ b/.idea/vcs.xml
@@ -0,0 +1,6 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/C03 ControlFlow/src/EncryptDemo.java b/C03 ControlFlow/src/EncryptDemo.java
index 1652e09..1a79c9a 100644
--- a/C03 ControlFlow/src/EncryptDemo.java
+++ b/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
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/C04 ClassDefine/src/Hero.java b/C04 ClassDefine/src/Hero.java
new file mode 100644
index 0000000..708b4a2
--- /dev/null
+++ b/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;
+ }
+}
diff --git a/C04 ClassDefine/src/Test.java b/C04 ClassDefine/src/Test.java
new file mode 100644
index 0000000..4c5951b
--- /dev/null
+++ b/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);
+ }
+}
diff --git a/C05 Extends/C05 Extends.iml b/C05 Extends/C05 Extends.iml
new file mode 100644
index 0000000..c90834f
--- /dev/null
+++ b/C05 Extends/C05 Extends.iml
@@ -0,0 +1,11 @@
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/C05 Extends/src/shape/Circle.java b/C05 Extends/src/shape/Circle.java
new file mode 100644
index 0000000..42fbdc1
--- /dev/null
+++ b/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;
+ }
+}
diff --git a/C05 Extends/src/shape/Rectangle.java b/C05 Extends/src/shape/Rectangle.java
new file mode 100644
index 0000000..acc7863
--- /dev/null
+++ b/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;
+ }
+}
diff --git a/C05 Extends/src/shape/Shape.java b/C05 Extends/src/shape/Shape.java
new file mode 100644
index 0000000..6afc876
--- /dev/null
+++ b/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;
+ }
+}
diff --git a/C05 Extends/src/test/ShapeDrawerTest.java b/C05 Extends/src/test/ShapeDrawerTest.java
new file mode 100644
index 0000000..8a564de
--- /dev/null
+++ b/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);
+ }
+}
+
diff --git a/C06 Polymorphism/C06 Polymorphism.iml b/C06 Polymorphism/C06 Polymorphism.iml
new file mode 100644
index 0000000..c90834f
--- /dev/null
+++ b/C06 Polymorphism/C06 Polymorphism.iml
@@ -0,0 +1,11 @@
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/C06 Polymorphism/src/shape/Circle.java b/C06 Polymorphism/src/shape/Circle.java
new file mode 100644
index 0000000..8f235a4
--- /dev/null
+++ b/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;
+ }
+
+}
diff --git a/C06 Polymorphism/src/shape/Rectangle.java b/C06 Polymorphism/src/shape/Rectangle.java
new file mode 100644
index 0000000..cdb4e29
--- /dev/null
+++ b/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;
+ }
+}
diff --git a/C06 Polymorphism/src/shape/Shape.java b/C06 Polymorphism/src/shape/Shape.java
new file mode 100644
index 0000000..6afc876
--- /dev/null
+++ b/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;
+ }
+}
diff --git a/C06 Polymorphism/src/test/ShapeDrawerTest.java b/C06 Polymorphism/src/test/ShapeDrawerTest.java
new file mode 100644
index 0000000..bd507ba
--- /dev/null
+++ b/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);
+ }
+}
+
diff --git a/C07 StaticAndEnum/C07 StaticAndEnum.iml b/C07 StaticAndEnum/C07 StaticAndEnum.iml
new file mode 100644
index 0000000..c90834f
--- /dev/null
+++ b/C07 StaticAndEnum/C07 StaticAndEnum.iml
@@ -0,0 +1,11 @@
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/C07 StaticAndEnum/src/CaptchaUtils.java b/C07 StaticAndEnum/src/CaptchaUtils.java
new file mode 100644
index 0000000..3758bb3
--- /dev/null
+++ b/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