java版链表实现定时器功能

package code; import java.io.IOException; import java.util.Random; import javax.microedition.lcdui.Canvas; import javax.microedition.lcdui.Font; import javax.microedition.lcdui.Graphics; import javax.microedition.lcdui.Image; public class manyCanvas extends Canvas implements Runnable{ Image jiu ; Thread t; LinkList1 list=new LinkList1(); int x=0,y=0; int []xianshi1=new int[20]; int []xianshi2=new int[20]; Random random=new Random(); Font title=Font.getFont(Font.FACE_SYSTEM, Font.STYLE_BOLD, Font.SIZE_LARGE); public manyCanvas(){ try { jiu = Image.createImage("/res/jiu.png"); } catch (IOException e) { // TODO 自动生成 catch 块 e.printStackTrace(); } t=new Thread(this); t.start(); } protected void paint(Graphics g) { // TODO 自动生成方法存根 g.setColor(0xff00); g.fillRect(0, 0, getWidth(), getHeight()); g.setColor(0x800000); g.setFont(title); show(g); } public void show(Graphics g){ for(int xx=0;xx<len;xx++){ if(xianshi1[len-1-xx]>=0&&xianshi2[len-1-xx]>0) { String str1=Integer.toString(xianshi1[len-1-xx]); String str2=Integer.toString(xianshi2[len-1-xx]); g.setColor(0xff0000); g.drawString(str1, x*xx, y*xx+30, 0); g.drawString(":",xx*x+13 , xx*y+30, 0); g.drawString(str2, xx*x+20, xx*y+30, 0); } if(xianshi1[len-1-xx]==0&&xianshi2[len-1-xx]==0) g.drawImage(jiu,x*xx, y*xx+30, 0); } }//end show //按键处理 protected void keyPressed(int key){ key=this.getGameAction(key); if(key==Canvas.DOWN){ int k = random.nextInt(); int kk= random.nextInt(); int k1= Math.abs(k%10); int k2= Math.abs(kk%10)+50; list.insert(k1, k2); len=0; flag=0; x=30; y=40; } }//end keyPressed int len=0; int flag=0; public void run() { // TODO 自动生成方法存根 while(true){ //求表的长度 if(flag==0){ Link1 temp=list.first; while(temp!=null) { len++; temp=temp.next; } // System.out.println("len:"+len); flag=1; }//end 求表长度 Link1 link=list.first; int i=0; for(int w=0;w<len;w++){ if(link.data2!=0){ link.data2--; xianshi2[i]=link.data2; xianshi1[i]=link.data1; link=link.next; i++; } else if(link.data1!=0&&link.data2==0){ link.data2=59; link.data1--; xianshi2[i]=link.data2; xianshi1[i]=link.data1; link=link.next; i++; } else if(link.data1==0&&link.data2==0){ xianshi1[i]=link.data1; xianshi2[i]=link.data2; link=link.next; i++; } }//end for try { Thread.sleep(50); } catch (InterruptedException e) { // TODO 自动生成 catch 块 e.printStackTrace(); } repaint(); }//end while } }