java第10天代码(线程)

/******************TestThread.java begin****************************/ 
public class TestThread {
 public static void main(String[] args) {
  // TODO Auto-generated method stub
  Object obj=new Object();
  
  print p=new print(obj);
  Thread th=new Thread(p);
  th.start();
  printNum pn=new printNum(obj);
  pn.start();
  
 }
}
class printNum extends Thread{
 private Object obj;
 
 public printNum(Object obj){
  this.obj=obj;
 }
  public void run(){
   synchronized(obj){
   for(int i=1;i<=26;i++){
    System.out.println(i*2-1);
    System.out.println(i*2);
    obj.notifyAll();
    try {
     obj.wait();
    } catch (InterruptedException e) {
     // TODO Auto-generated catch block
     e.printStackTrace();
    }
 //   System.out.println(Thread.currentThread().getName()+":"+i);
   }
  }
 }
}
class print implements Runnable{
    private Object obj;
 
 public print(Object obj){
  this.obj=obj;
 }
 public void run(){
  synchronized(obj){
  for(char i='A';i<='Z';i++){
   System.out.println(Thread.currentThread().getName()+":"+i);
   obj.notifyAll();
   try {
    obj.wait();
   } catch (InterruptedException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
   }
  }
  }
 }
}
/******************TestThread.java end****************************/ 
/*********************