java线程问答

今天去高*面试了一下，让人很气愤，一个不懂技术的面试官怎么干的，我记录下来给大家留作记录

问：classA 有两个synchronized methodA，methodB，objA = new classA   问objA.methodA,objA.methodB

线程安全吗？  面试官回答不安全

我都不回答了，看我的代码和输出结果，以后大家出去面试对这样的面试官要鄙视一下

package com.example;

public class Sync {
	public synchronized String getA() throws InterruptedException {
		System.out.println(Thread.currentThread().getName());
		Thread.currentThread().sleep(1000);
		System.out.println("-----------------------------");
		return "-----------a";
	}

	public synchronized String getB() throws InterruptedException {
		System.out.println(Thread.currentThread().getName());
		Thread.currentThread().sleep(1000);
		System.out.println("-----------------------------");
		return "-----------b";
	}
	
	public static void main(String[] args) {
		final Sync sync = new Sync();
		final Sync sync2 = new Sync();
		new Thread(new Runnable() {
			@Override
			public void run() {
				try {
					System.out.println(sync.getA());
				} catch (InterruptedException e) {
				}
			}
		}).start();
		new Thread(new Runnable() {
			@Override
			public void run() {
				try {
					System.out.println(sync.getB());
				} catch (InterruptedException e) {
				}
			}
		}).start();
	}
	
}

 Thread-1

-----------------------------

-----------b

Thread-0

-----------------------------

-----------a