Java Bullet-screen pinball multi-threading

Package applet; Import Java.awt.borderlayout;public class Tantan extends JFrame implements Actionlistener{private JPanel Contentpane;private JTextField Danmu; JButton button; tanqiu1 t; Tablerowsorter<tablemodel> Sorter;D efaulttablemodel model1;private JTable l1;private JTable ta1; String[][] s={}; String[] name1 ={"Time", "content"};/** * Launch the application. */public static void Main (string[] args) {Eventqueue.invokelater (New Runnable () {public void run () {try {Tantan frame = new Tantan (); frame.setvisible (true);} catch (Exception e) {E.print StackTrace ();}});} /** * Create the frame. */public Tantan () {settitle ("\u5f39\u5e55\u7a0b\u5e8f\u52a0\u4e0a\u5c0f\u5f39\u7403"); SetResizable (false); Setdefaultcloseoperation (Jframe.exit_on_close); SetBounds (+, 560, 476); contentpane = new JPanel (); Contentpane.setborder (New Emptyborder (5, 5, 5, 5)); Setcontentpane (ContentPane); contentpane.setlayout (null); t = new TANQIU1 (t.setsize); t.setlocation (0, 0); Contentpane.add (t);d Anmu = new JtextfiEld ();d anmu.setbounds (), 407, 321, Contentpane.add (DANMU);d Anmu.addactionlistener (This);d Anmu.setcolumns (10)    ; button = new JButton ("\u53d1\u9001"); Button.setforeground (Color.orange); Button.setbackground (Color.cyan); Button.setbounds (358, 406, ",") Button.addactionlistener (this); Contentpane.add (button); model1 = new DefaultTableModel (); Model1.setdatavector (null,name1); ta1 = new JTable (MODEL1); ta1.setenabled (false); JScrollPane j = new JScrollPane (TA1); J.setbounds (309,, 235, 371); Contentpane.add (j); JLabel label = new JLabel ("\u5f39\u5e55\u5185\u5bb9"); Label.setfont (New Font ("Microsoft Jas Black", Font.plain,)); label.setbounds (399, 5, (); Contentpane.add (label);} @Overridepublic void actionperformed (ActionEvent e) {//TODO auto-generated method Stubif (E.getsource () ==button| | E.getsource () ==danmu) {Date now = new Date (); String []SS = new string[2]; String str = Danmu.gettext (); System.out.println ("str" +str+ "str"); if (!str.equals (")") {t.set_s (str); ss[0]= now.gethours () + ":" +now.getminutes () +":"+now.getseconds (); Ss[1]=str;model1.addrow (ss);d Anmu.settext (" ");} Else{joptionpane.showmessagedialog (NULL, "Input cannot be empty");}}}    Class TANQIU1 extends jpanel{private int numbertanmu;    private int width;    private int height;    Private Thread []looper=new thread[10];    Private Thread []looper1=new thread[1000];    Private Tanmu []tanmu1=new tanmu[1000];        Private ball []ball1=new ball[10];    Tanqiu1 () {numbertanmu=1;    SetBounds (0,0,400,400);    width=300;               height=400;        Looper = new THREAD[10];        Looper1=new thread[1000];        Tanmu1=new tanmu[1000];         Tanmu1[0] = new Tanmu ("", 20);    looper1[numbertanmu-1]= new Thread (Tanmu1[numbertanmu-1]);        Looper1[numbertanmu-1].start ();            for (int i=0;i<10;i++) {int SX = (int) ((Math.random ())) *10);            int sy = (int) ((Math.random ()) *10);            if (sx==0&&sy==0) {sx=1;            Sy=1; } ball1[i]= new Ball (Sx,sy,10+i*10,30+i*10,width,height);            Looper[i] = new Thread (Ball1[i]);         Looper[i].start ();        }} public void Paint (Graphics g) {G.setcolor (Color.gray);        G.fillrect (0,0,300,400);        G.setcolor (Color.cyan);                   G.fillrect (0,0,300,20);        for (int i=0;i<10;i++) {g.setcolor (color.orange);    G.filloval (Ball1[i].get_x (), ball1[i].get_y (), 20,20);    } for (int i=0;i<numbertanmu;i++) {int x1 = (int) ((Math.random ()) *255);    int x2 = (int) ((Math.random ()) *255);    int x3 = (int) ((Math.random ()) *255);    G.setcolor (New Color (X1,X2,X3));    G.setfont (New Font ("Blackbody", font.bold,20));    g.DrawString (tanmu1[i].get_s (), TANMU1[I].GET_SX (), Tanmu1[i].get_sy ());    } repaint ();    } public void set_s (String s) {tanmu1[numbertanmu]=new tanmu (S, (numbertanmu%17+2) *20);    looper1[numbertanmu]= new Thread (Tanmu1[numbertanmu]);    Looper1[numbertanmu].start ();    numbertanmu++; }}class Ball Implements RUNNABLE{PRivate int spx;private int spy;private int x;private int y;private int width;private int height;ball (int a,int b,int C,int D,int E,int f) {spx=a;spy=b;x=c;y=d;width = E;height =f;} public void Run () {//TODO auto-generated method Stubwhile (True) {if (x<0| |    x>280-spx) {spx=-spx; } if (Y<20+math.abs (Spy) | |    Y>380-math.abs (Spy)) {spy=-spy;    } x+=spx;    Y+=spy;   try {thread.sleep;} catch (Interruptedexception e) {e.printstacktrace ();} }}public int get_x () {return X;} public int get_y () {return Y;}} Class Tanmu implements runnable{private string s;private int sx;private int SY;TANMU (String ss,int h) {s=ss;sx=10;sy=h;} Public String get_s () {return S;} public int get_sx () {return Sx;} public int Get_sy () {return Sy;} public void set_s (String ss) {s=ss;sx=0;}    public void Run () {Boolean flag = True;while (flag) {sx+=5;     if (sx>=300) Flag=false;   try {thread.sleep;} catch (Interruptedexception e) {e.printstacktrace ();} }}}

Java Bullet-screen pinball multi-threading