Java线程多线程

创建两个线程，一个打印1-52，一个打印A-Z 打印顺序为12A34B56C78D …

package Thread;


class putNumber extends Thread{
    @Override
    public void run() {

        for (int i = 1; i <= 52; i++){
            try {
                Thread.sleep(100);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            System.out.println(i);
        }
    }
}

class putLetter extends Thread{
    @Override
    public void run() {
        for (int i = 65; i <= 90; i++){
            char a =(char)i;
            try {
                Thread.sleep(200);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            System.out.println(a);
        }
    }
}

public class ThreadHomework {


    public static void main(String[] args) throws InterruptedException {

        putNumber pn = new putNumber();
        putLetter pl = new putLetter();

        Thread t1=new Thread(pn);
        Thread t2=new Thread(pl);
        t2.start();
        t1.start();



    }



}