利用Java编写一个出敬业福的小程序

package com.mrxx.game;
import java.awt.*;
/*字体工具类*/
public class FontUtil {
    public static void drawWord(Graphics g,String str,Color color,int size,int x,int y,String font){
        g.setColor(color);
        g.setFont(new Font(font,Font.BOLD,size));
        g.drawString(str,x,y);
    }
}

package com.mrxx.game;

import javax.imageio.ImageIO;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
/*图片工具类*/
public class ImgTool {

  //提取图片工具1
  public static BufferedImage getimg(String path){
    BufferedImage img=null;
    try {
      img= ImageIO.read(new File(path));
    } catch (IOException e) {
      e.printStackTrace();
    }
    return img;
  }

  //工具2
  public static Image getImage(String filename){
    return Toolkit.getDefaultToolkit().getImage(filename);
  }
}

package com.mrxx.game;

import javax.swing.*;
import java.awt.*;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.awt.image.BufferedImage;
import java.util.Arrays;
import java.util.List;
/*主类*/
public class RandFu extends JFrame {
    List<Color> colorList;
    List<String> arrayList;
    Integer index,fontRandom;
    BufferedImage bg=null;
    public RandFu(){
        arrayList= Arrays.asList("楷体","宋体","华文琥珀","华文行楷","幼圆","华文新魏","华文彩云","隶书");
        fontRandom=(int)((Math.random()*10)%8);
        System.out.println("字体："+arrayList.get(fontRandom));
        bg=ImgTool.getimg("src/com/mrxx/img/bg.jpg");
        //初始化
        colorList=Arrays.asList(Color.gray,Color.black,Color.PINK, Color.orange,Color.RED);
        index=(int) ((Math.random()*10)%5);
        System.out.println("字体颜色"+index);
        setSize(600,600);
        setIconImage(ImgTool.getImage("src/com/mrxx/img/fu.png"));
        setLocationRelativeTo(null);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setVisible(true);
        setBackground(Color.red);

        //键盘监听
        //设置面板键盘监听
        this.addKeyListener(new KeyAdapter() {
            //重写键盘监听方法
            @Override
            public void keyPressed(KeyEvent e) {
                //判断是否是空格
                if (e.getKeyCode() == KeyEvent.VK_SPACE) {
                    reGame();
                }
            }
        });

    }

    //重启
    public void reGame(){
        //关闭当前窗口
        this.dispose();
        //开启新窗口
        String[] args={};
        main(args);
    }


    @Override
    public void paint(Graphics g){
        //画背景
        g.drawImage(bg,15,50,570,535,null);
        FontUtil.drawWord(g,"福",colorList.get(index),250,163,400,arrayList.get(fontRandom));
        //repaint();
    }

    public static void main(String[] args) {
        RandFu randFu=new RandFu();
    }
}