Callable和Runnable的区别「建议收藏」

	class c implements Callable<String>{ 
   
		@Override
		public String call() throws Exception { 
   
			return null;
		}
	}
	
	class r implements Runnable{ 
   
		@Override
		public void run() { 
   
		}
	}

public static void main(String[] args) throws Exception{ 
   
		//1 创建一个线程池
		//调用Executors类的静态方法
		ExecutorService service = Executors.newFixedThreadPool(10);
		//2提交runnable对象
		service.submit(new Runnable() { 
   
			@Override
			public void run() { 
   
			}
		});
		//3 提交callable对象
		service.submit(new Callable<String>() { 
   
			@Override
			public String call() throws Exception { 
   
				return null;
			}
		});
		//4 关闭线程池
		service.shutdown();
	}