//創造多線程
class MyThread implements Runnable{
	int count;
	Thread thrd;
	
	//創造一個新的線程/
	MyThread(String name){
		thrd = new Thread(this, name);
		count = 0;
		thrd.start();//start the thread.
	}
	
	//beginning execution of new thread.
	public void run(){
		System.out.println(thrd.getName()+" 線程開始.");
		try{
			do{
				Thread.sleep(500);
				System.out.println("在 "+ thrd.getName()+
						", 計數到 "+count);
				count++;
			}while(count<5);
		}catch(InterruptedException e){
			System.out.println(thrd.getName()+" 被打斷.");
		}
		System.out.println(thrd.getName()+ " 結束.");
	}
}
public class MoreThreads {
	public static void main(String args[]){
		System.out.println("主線程開始:");
		MyThread mt1= new MyThread("線程 1");
		MyThread mt2 = new MyThread("線程 2");
		MyThread mt3 = new MyThread("線程 3");
		
		do{
			System.out.print(".");
			try{
				Thread.sleep(100);
			}catch(InterruptedException e){
				System.out.println("主線程被打斷.");
			}
		}while((mt1.count<5)&&(mt2.count<5)&&(mt3.count<5));
		System.out.println("主線程結束.");
	}
}