자바 스윙 흰화면 오류

Question

package Shooting_star;import javax.imageio.ImageIO;import javax.swing.*;import java.awt.*;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.awt.image.BufferedImage;import java.io.File;import java.io.IOException;public class Frame_st extends JFrame {BufferedImage img = null;Frame_st() {JLayeredPane jlp = new JLayeredPane(); // 배경화면 설정을 위한jlp.setSize(400,600);jlp.setLayout(null);try{img = ImageIO.read(new File("image\Frame.jpg"));} catch (IOException e) {JOptionPane.showMessageDialog(null, "이미지 불러오기 실패");System.exit(0);}BackGimg backGimg = new BackGimg(); // 이미지 삽입backGimg.setSize(400,600);jlp.add(backGimg);JButton Ins = new JButton(new ImageIcon("image\insert.png"));Ins.setBounds(155, 350, 80, 80);Ins.setBorderPainted(false); // Jbutton의 border(외곽선)을 없애줌Ins.setContentAreaFilled(false); // jbutton의 내용 영역 채우기 XIns.setFocusPainted(false); // jbutton이 선택되었을 때 생기는 테두리 사용 안 함Ins.addActionListener(new ActionListener() {@Overridepublic void actionPerformed(ActionEvent e) {GameFrame gameFrame = new GameFrame();setVisible(false);}});add(Ins);add(jlp);setBounds(700,220,400,600);setVisible(true);setResizable(false); // 창크기 수정불가setDefaultCloseOperation(EXIT_ON_CLOSE);}class BackGimg extends JPanel {public void paint(Graphics g){g.drawImage(img, 0,0,null);}}public static void main(String[] args) {new Frame_st();}}package Shooting_star;import javax.imageio.ImageIO;import javax.swing.*;import java.awt.*;import java.awt.event.KeyAdapter;import java.awt.event.KeyEvent;import java.awt.event.KeyListener;import java.awt.image.BufferedImage;import java.io.File;import java.io.IOException;import java.util.ArrayList;import java.util.Objects;public class GameFrame extends JFrame{int Y = 600;int X = 400;int Air_X = 150, Air_Y = 200;int Monsters = 3;Toolkit toolkit = Toolkit.getDefaultToolkit();Image airPlane = toolkit.createImage("image\airplane.png");Image BackGround = toolkit.createImage("image\game.jpg");MoveAirplane moveAirplane = new MoveAirplane(this);Image bufimg;Graphics graphics;ArrayList monsters = new ArrayList<>();ArrayList userBullets = new ArrayList<>();GameFrame() {Thread th = new Thread(moveAirplane);th.start();addKeyListener(moveAirplane);setBounds(700,220,X, Y);setVisible(true);setResizable(false); // 창크기 수정불가setDefaultCloseOperation(EXIT_ON_CLOSE);for(int i = 0 ; i < Monsters ; i++){monsters.add(new Monster(100+(i+1)*50,100));}}public void setFrame() {}public void paint(Graphics g){bufimg = createImage(getWidth(), getHeight());graphics = bufimg.getGraphics();graphics.clearRect(0,0,400,600);update(g);}public void update(Graphics g){drawBackGround(g);// drawMonster(g);drawAirplane(g);drawBullet(g);g.drawImage(bufimg, 0, 0 , this);}int count = 0;public void drawBackGround(Graphics g){if(count > -840){graphics.drawImage(BackGround,count,0,this);count--;}else count = 0;}// public void drawMonster(Graphics g){// for(int i = 0 ; i < Monsters; i++) {// graphics.drawImage(monsters.get(i).image, monsters.get(i).M_X, monsters.get(i).M_Y, this);// }// }public void drawAirplane(Graphics g){graphics.drawImage(airPlane, Air_X,Air_Y,this);}public void drawBullet(Graphics g){for(int i = 0 ; i < userBullets.size(); i++){UserBullet userBullet = userBullets.get(i);graphics.drawImage(userBullet.image, userBullet.X, userBullet.Y, this);userBullet.move();if(userBullet.Y > 601)userBullets.remove(i);}}}package Shooting_star;import java.awt.event.KeyAdapter;import java.awt.event.KeyEvent;public class MoveAirplane extends KeyAdapter implements Runnable {boolean up, down, left, right,space;int cnt = 0;GameFrame gameFrame;UserBullet userBullet;MoveAirplane(GameFrame gameFrame) {this.gameFrame = gameFrame;}@Overridepublic void keyPressed(KeyEvent e) {int Key = e.getKeyCode();switch (Key) {case KeyEvent.VK_UP:this.up = true;break;case KeyEvent.VK_DOWN:this.down = true;break;case KeyEvent.VK_LEFT:this.left = true;break;case KeyEvent.VK_RIGHT:this.right = true;break;case KeyEvent.VK_SPACE:this.space = true;break;}}@Overridepublic void keyReleased(KeyEvent e) {int Key = e.getKeyCode();switch (Key) {case KeyEvent.VK_UP:this.up = false;break;case KeyEvent.VK_DOWN:this.down = false;break;case KeyEvent.VK_LEFT:this.left = false;break;case KeyEvent.VK_RIGHT:this.right = false;break;case KeyEvent.VK_SPACE:this.space = false;break;}}public void KeyProcess() {if (up) {if(gameFrame.Air_Y >= 0)this.gameFrame.Air_Y -= 7;}if (down) {if(gameFrame.Air_Y < 550)this.gameFrame.Air_Y += 7;}if (left) {if(gameFrame.Air_X > 5)this.gameFrame.Air_X -=7;}if (right) {if(gameFrame.Air_X < 340)this.gameFrame.Air_X +=7;}if (space) {if(cnt % 8 == 0){UserBullet bullet = new UserBullet(this.gameFrame, 0, 2);this.gameFrame.userBullets.add(bullet);}}}public void bullet() {for(int i = 0 ; i < gameFrame.userBullets.size(); i++){UserBullet userBullet1 = gameFrame.userBullets.get(i);userBullet1.move();}}@Overridepublic void run() {try {while (true) {KeyProcess();bullet();Thread.sleep(10);}} catch (InterruptedException e) {e.printStackTrace();}}}전체 코드입니다. bullet을 추가하기 전엔 오류가 없었는데,,,, 흰화면이 미친듯이 뜹니다 ㅠㅠㅠ

자바 스윙 흰화면 오류

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