Pinball games

establish loginBall Class implementation start game interface

package  Pinball games ;
import javax.swing.*;
import java.awt.*;

public class loginBall {
    
     JFrame JF=new JFrame(" Pinball games ");
    JLabel JL=new JLabel(" Welcome to pinball games ");
    JButton jb=new JButton(" Start the game ");
    loginBall(){
    
        JF.setBounds(700,270,450,500);
      JL.setFont(new Font(" Song style ",Font.BOLD,30));
      JL.setForeground(Color.pink);
      JF.add(JL);
      JF.add(jb);
      JF.setVisible(true);
      JF.setLayout(new FlowLayout(FlowLayout.CENTER,30,100));
     JF.setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
    }
}

establish Ball Class inheritance loginball class . Use Dialog File dialog box and add corresponding event listening and processing , When you click Start Game , The game interface will pop up on the start game interface ！

package  Pinball games ;

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

public class Ball extends loginBall {
    
    // Set the width and height of the desktop 
    int Tab_width = 400;
    int Tab_height = 550;
    // Set the width and height of the racket 
    int P_width = 80;
    int P_height = 20;
    // Set the size of the ball (18 Pixel ）
    int Ball_siz = 18;
    // Used to record the position of the small ball and initialize the position of the small ball (X:240,Y:100)
    int X = 240;
    int Y = 50;
    // Record the ball in X Direction and Y Fractional velocity of 
    int Vx = 20;
    int Vy = 20;
    // Record the position of the racket 
    int P_X = 120;
    final int P_Y = 450;
    // Identifies whether the game is over 
    boolean isOver =false;
    // Claim a timer 
    Timer time;
    // Custom class , Inherit Canvas, Act as a canvas 

    class myCanvas extends Canvas {
    
        @Override
        public void paint(Graphics g) {
    
// Draw content 
            if (isOver) {
    
                g.setColor(Color.PINK);
                g.setFont(new Font(" Song style ", Font.BOLD, 30));
                g.drawString(" Game over !", 130, 150);
            } else {
    
                g.setColor(Color.red);
                g.fillOval(X, Y, Ball_siz, Ball_siz);
                g.setColor(Color.CYAN);
                g.fillRect(P_X, P_Y, P_width, P_height);
            }
        }
    }
    myCanvas my = new myCanvas();

    public void init() {
    
        Dialog D1=new Dialog(JF, " Pinball games ",true);
        D1.setBounds(750,300,Tab_width,Tab_height);
        jb.addActionListener(new ActionListener() {
    
            @Override
            public void actionPerformed(ActionEvent e) {
    
                D1.setVisible(true);

            }
        });

        D1.addWindowListener(new WindowAdapter(){
    
                                 @Override
                                 public void windowClosing(WindowEvent e) {
    
                                     System.exit(0);
                                 }
             });
        KeyListener listen = new KeyAdapter() {
    
            @Override
            public void keyPressed(KeyEvent e) {
    
                // Get the integer corresponding to the currently pressed key （ Each key on the keyboard corresponds to an integer ）
                int key = e.getKeyCode();
                if (key == KeyEvent.VK_LEFT) {
    
                    if (P_X > 0) {
    
                        P_X-= 30;
                    }
                }
                if (key == KeyEvent.VK_RIGHT) {
    
                    if (P_X<=(Tab_width-P_width)) {
    
                        P_X+= 30;
                    }
                }
            }
        };
        D1.addKeyListener(listen);

// Control of spherical coordinates 

     ActionListener sss = new ActionListener() {
    
            @Override
            public void actionPerformed(ActionEvent e) {
    
//* Correct the speed according to the boundary range 


                if (X <= 0||X >=(Tab_width-Ball_siz)) {
    
                    Vx = -Vx;
                }
                if (Y <= 0||(Y >P_Y-Ball_siz && X >P_X && X < P_X + P_width)) {
    
                    Vy = -Vy;
                }

                if (Y >P_Y-Ball_siz && (X < P_X || X > P_X+ P_width)) {
    
                    time.stop();
                    isOver = true; Dialog D1=new Dialog(JF, " Pinball games ",true);
                    my.repaint();
                }
                X+=Vx;
                Y+=Vy;
                my.repaint();
            }
        };

        time=new Timer(100,sss);
        time.start();
        my.setPreferredSize(new Dimension(Tab_width,Tab_height));

        D1.add(my);
    }

    public static void main(String[] args) {
    
        new Ball().init();
    }
}

Running results ： When you click to start the game, the small ball will pop up through the movement of the baffle ; If the ball falls and is not bounced up, the game is over #