package j1;

//-----------------------------------------------------------
public class TestThread{
    public static void main(String[] args){
	System.out.print("TestThread started.");

	MyThread mt1 = new MyThread("1 ", 2000);
	MyThread mt2 = new MyThread("2 ", 4000);
	MyThread mt3 = new MyThread("3 ", 8000);
		
	mt1.start();
	mt2.start();
	mt3.start();
    }
};
//-----------------------------------------------------------
class MyThread extends Thread {
    String str;
    int msec;

    MyThread(String txt, int ms) {
	this.str = txt;
	this.msec = ms;
    }
    public void run() {
	while(true) {
	    try {
		System.out.print(this.str);
		sleep(msec);	// tミリ秒動作休止
	    } catch(InterruptedException e) {
		break;
	    }
	} // end while
    } // end of run
} // end of class myThread