多线程笔试题

判断顺序打印 1A2B3C1D2E3F…

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class Solution{

public static char charStr = 'A';

public static int index= 0;


public static void main(String[] args){
Runnable task = new Runnable(){

@Override
public void run(){
synchronized(this){

try{
int id = Integer.parseInt(Thread.currentThread().getName());
while(index < 26){
if(index % 3 == id -1){
System.out.println("当前线程id:"+(id)+ charStr++);
index++;
notifyAll();
}else{

wait();
}
}

}catch(Exception e){

e.printStackTrace();

}


}



}


};
new Thread(task,"1").start();
new Thread(task,"2").start();
new Thread(task,"3").start();

}





















}



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