執行緒1負責列印a,b,c,d

執行緒2負責列印1,2,3,4

要求控制檯中輸出的內容為 a1b2c3d4

package com.sdmjhca.springBootDemo.countdownlatch;
/**
 * @author JHMI on 2017/8/28.
 */
public class TestMain {
    static final Object object = new Object();
    public static void main(String[] args) throws InterruptedException {

        new Thread(new 
 
Runnable() {
            String a[] = {"a","b","c","d"};
@Override
public void run() {
                for(int i=0;i< 4 ;i++){
                    synchronized (object){
                        System.out.println("執行緒a 開始執行");
object.notify();
                        try {
                            System.out
 
.println("執行緒a 開始等待");
object.wait();
} catch (InterruptedException e) {
                            e.printStackTrace();
}
                        System.out.println("執行緒a 繼續執行");
System.out.println(a[i]);
System.out.println("執行緒a 執行結束");
object.notify();
}
                }
            }
        }).start();
 
        new Thread(new Runnable() {
            int a[] = {1,2,3,4};
@Override
public void run() {
                for(int i=0;i<4;i++){
                    synchronized (object){
                        System.out.println("執行緒1 開始執行");
object.notify();
                        try {
                            System.out.println("執行緒1 開始等待");
object.wait();
} catch (InterruptedException e) {
                            e.printStackTrace();
}
                        System.out.println("執行緒1  繼續執行");
System.out.println(a[i]);
System.out.println("執行緒1  執行結束");
}
                }

            }
        }).start();
}
}