1.0版本 。

画板类 

package com.hsp.Tank2.tankegame;

import javax.swing.*;
import java.awt.*;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;

//坦克大战的绘图区域
public class MyPanel extends JPanel implements KeyListener {
    Hero hero = null;

    public MyPanel() {
        hero = new Hero(400, 400);//初始化自己的坦克
        hero.setSpeed(40);
    }

    @Override
    public void paintComponent(Graphics g) {
        super.paintComponent(g);

        // g.setColor(Color.magenta);//设置画笔颜色
        g.fillRect(0, 0, 1000, 750);//填充矩形 默认黑色//左上角的x，y坐标，宽，高
        // g.drawRect(30, 30, 300, 300);
        //画出自己坦克-封装方法
        drawTank(hero.getX(), hero.getY(), g, hero.getDirect(), 0);
    }

    public void drawTank(int x, int y, Graphics g, int direct, int type) {
        //根据坦克类型设置颜色
        switch (type) {
            case 0:
                g.setColor(Color.cyan);
                break;
            case 1:
                g.setColor(Color.red);
                break;
        }
        switch (direct) {
            case 0://向上
                g.fill3DRect(x, y, 10, 60, true);
                g.fill3DRect(x + 30, y, 10, 60, true);
                g.fill3DRect(x + 10, y + 10, 20, 40, false);
                g.fillOval(x + 10, y + 20, 20, 20);
                g.drawLine(x + 20, y + 30, x + 20, y);
                break;
            case 1:
                g.fill3DRect(x, y, 60, 10, true);
                g.fill3DRect(x, y + 30, 60, 10, true);
                g.fill3DRect(x + 10, y + 10, 40, 20, false);
                g.fillOval(x + 20, y + 10, 20, 20);
                g.drawLine(x + 30, y + 20, x + 60, y + 20);
                break;

            case 2:
                g.fill3DRect(x, y, 10, 60, true);
                g.fill3DRect(x + 30, y, 10, 60, true);
                g.fill3DRect(x + 10, y + 10, 20, 40, false);
                g.fillOval(x + 10, y + 20, 20, 20);
                g.drawLine(x + 20, y + 30, x+20 , y+60);

            case 3:
                g.fill3DRect(x, y, 60, 10, true);
                g.fill3DRect(x, y + 30, 60, 10, true);
                g.fill3DRect(x + 10, y + 10, 40, 20, false);
                g.fillOval(x + 20, y + 10, 20, 20);
                g.drawLine(x + 30, y + 20, x, y + 20);
                break;

            default:
                System.out.println("不做处理");
        }


    }

    @Override
    public void keyTyped(KeyEvent e) {

    }

    @Override
    public void keyPressed(KeyEvent e) {
        if (e.getKeyCode() == KeyEvent.VK_W) {
            hero.setDirect(0);
    hero.moveUp();
        } else if (e.getKeyCode() == KeyEvent.VK_D) {
            hero.setDirect(1);
            hero.moveRight();
        } else if (e.getKeyCode() == KeyEvent.VK_S) {
            hero.setDirect(2);
            hero.down();
        } else if (e.getKeyCode() == KeyEvent.VK_A) {
            hero.setDirect(3);
            hero.moveLeft();
        }
        this.repaint();
    }

    @Override
    public void keyReleased(KeyEvent e) {

    }
}

---

 坦克游戏类

package com.hsp.Tank2.tankegame;

import javax.swing.*;

@SuppressWarnings({"all"})
class LXTankGameo2 extends JFrame {
    MyPanel mp = null;

    public static void main(String[] args) {
        LXTankGameo2 lxTankGameo1 = new LXTankGameo2();
    }

    public LXTankGameo2() {
        mp = new MyPanel();
        this.add(mp);
        this.addKeyListener(mp);
        this.setSize(1000, 750);//把面板(就是坦克大战游戏绘图区域)添加进来
        this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        this.setVisible(true);
    }
}

---

坦克父类

package com.hsp.Tank2.tankegame;

public class Tank {
    private int x;
    private int y;
    private int direct =3;
    private int speed=5;


    public void setSpeed(int speed) {
        this.speed = speed;
    }

    public int getSpeed() {
        return speed;
    }


    public Tank(int x, int y) {
        this.x = x;
        this.y = y;
    }

    public void setY(int y) {
        this.y = y;
    }

    public void setX(int x) {
        this.x = x;
    }

    public int getX() {
        return x;
    }

    public int getY() {
        return y;
    }

    public void setDirect(int direct) {
        this.direct = direct;
    }

    public int getDirect() {
        return direct;
    }public void moveUp(){
        y=y-speed;
    }public  void  moveRight (){
        x=x+speed;
    }public void down(){
        y=y+speed;
    }public void moveLeft(){
        x=x-speed;
    }
}

---

坦克子类（Hero）

package com.hsp.Tank2.tankegame;

public class Hero extends Tank {
    public Hero(int x, int y) {
        super(x, y);
    }
}

---