java thread 输出结果_大神来看看这段程序输出结果是什么？

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public class TestThreads{

public static void main(String[] args){

ThreadOne t1=new ThreadOne();

ThreadTwo t2=new ThreadTwo();

Thread One=new Thread(t1);

Thread Two=new Thread(t2);

One.start();

Two.start();

}

}

class Accum{

private static Accum a=new Accum();

private int counter=0;

private Accum(){}

public static Accum getAccum(){

return a;

}

public void updateCounter(int add){

counter+=add;

}

public int getCount(){

return counter;

}

}

class ThreadOne implements Runnable{

Accum a=Accum.getAccum();

public void run(){

for(int i=0;i<98;i++){

a.updateCounter(1000);

try{

Thread.sleep(50);

}catch(InterruptedException ex){}

}

System.out.println("one "+a.getCount());

}

}

class ThreadTwo implements Runnable{

Accum a=Accum.getAccum();

public void run(){

for(int i=0;i<99;i++){

a.updateCounter(1);

try{

Thread.sleep(50);

}catch(InterruptedException ex){}

}

System.out.println("Two "+a.getCount());

}

}