设计简述：本程序为简单地捕鱼达人程序，有四个类，fish类为鱼的实体类。同时也是一个线程类，每一条鱼都是一个线程，Pool类继承的JPanel类，Pool类中重写了绘图函数。通过改变与的位置并且不断的绘图来实现鱼的动作。Net类是渔网的一个实体类，当渔网和鱼碰撞检测成功时，该鱼的线程sleep2秒这个时间绘制鱼被捉时的动画。Fish类：packagecn.edu.qust;importjava.awt.image.BufferedImage;importjava.io.File;importjava.io.IOException;importjava.util.Random;importjavax.imageio.ImageIO;publicclassFishextendsThread{BufferedImage[]image=newBufferedImage[10];//定义存放鱼的图片intwidth;//定义与图片的宽度intheight;//定义鱼图片的高度intx;//定义与图片在面板的x位置inty;//定义鱼图片在面板的Y位置intstep;//定义鱼图片的速度BufferedImagecatched1;//鱼捕到时的第一张图片BufferedImagecatched2;//鱼捕到时的第二张图片booleanisCatched=false;//表示鱼是否被捕到BufferedImageImage;privateintindex=0;publicFish(Strings)throwsIOException{for(inti=0;i<image.length;i++){//将各类鱼存放在数组中image[i]=ImageIO.read(newFile("image/"+s+"_0"+i+".png"));width=image[i].getWidth();//获取当前照片的宽度height=image[i].getHeight();}Image=image[index];catched1=ImageIO.read(newFile("image/"+s+"_catch_01.png"));catched2=ImageIO.read(newFile("image/"+s+"_catch_02.png"));Randomr=newRandom();x=800;y=r.nextInt(800-height);step=r.nextInt(5)+1;}publicbooleanisCatched(Netnet){intnetx=net.x-x;intnety=net.y-y;returnnetx>=0&&netx<=width&&nety>=0&&nety<=height;}publicvoidgoOut(){Randomr=newRandom();x=800;y=r.nextInt(470-height);step=r.nextInt(4)+1;}@Overridepublicvoidrun(){while(true){try{Thread.sleep(60);if(isCatched==false){index++;Image=image[index%image.length];//现在要动，所以要改变图片？300x=x-step;}else{Image=catched1;Thread.sleep(60);Image=catched2;}if(x<=-300||y<=0||y>=480){goOut();}}catch(InterruptedExceptione){//TODOAuto-generatedcatchblocke.printStackTrace();}}}}Net类：packagecn.edu.qust;importjava.awt.image.BufferedImage;importjava.io.File;importjava.io.IOException;importjavax.imageio.ImageIO;publicclassNet{BufferedImageimage;intwidth;//定义渔网图片的宽度intheight;//定义渔网图片的高度intx;//定义渔网图片在面板的x位置inty;//定义渔网图片在面板的Y位置booleanisShow=false;//表示渔网是否显示publicNet()throwsIOException{image=ImageIO.read(newFile("image/net09.png"));width=image.getWidth();height=image.getHeight();x=200;y=100;}publicvoidmoveTo(intx,inty){this.x=x;this.y=y;}}Pool类：packagecn.edu.qust;importjava.awt.Color;importjava.awt.Graphics;importjava.awt.event.MouseAdapter;importjava.awt.event.MouseEvent;importjava.awt.image.BufferedImage;importjava.io.File;importjava.io.IOException;importjava.util.Date;importjavax.imageio.ImageIO;importjavax.swing.JPanel;publicclassPoolextendsJPanel{BufferedImageb;//定义背景Fishfishes[];Netnet;intcount;//统计鱼的个数BufferedImages;//分数面板BufferedImage[]scores=newBufferedImage[6];//存储0~9图片publicPool()throwsIOException{b=ImageIO.read(newFile("image/bg.jpg"));s=ImageIO.read(newFile("image/bottom-bar.png"));fishes=newFish[20];for(inti=0;i<9;i++){fishes[i]=newFish("fish0"+(i+1));fishes[i+9]=newFish("fish0"+(i+1));}fishes[18]=newFish("fish14");fishes[19]=newFish("fish13");newThread(){@Overridepublicvoidrun(){for(inti=0;i<fishes.length;i++){fishes[i].start();try{Thread.sleep(1000);}catch(InterruptedExceptione){//TODOAuto-generatedcatchblocke.printStackTrace();}}}}.start();net=newNet();for(inti=0;i<scores.length;i+...