多线程

public class Test extends Thread{

public void run(){
outInfo();
}

private void outInfo() {
for(int i=0;i<20;i++){
System.out.println("年少不上班");

try {
Thread.sleep(100);
} catch (InterruptedException e) {

e.printStackTrace();
}
}

}

public static void main(String[] args) {

Test t = new Test();

t.start();

Test e = new Test();
e.start();
}
}