CallableTest 实例

CallableTest 实例

Runnable是执行工作的独立任务，不返回任何值。

Callable是一中具有类型参数的泛型，run方法对应call方法，通过ExecutorService.submit方法调用

 

 

package threadTest;

import java.util.concurrent.ExecutionException;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;

public class CallableTest {

	public static void main(String[] args) throws InterruptedException, ExecutionException {
		ExecutorService executors = Executors.newCachedThreadPool();
		Future<String> future;
		for(int i=0; i<5 ; i++){
			future= executors.submit(new CallableImpl(Integer.toString(i)));
			System.out.println(future.get());
		}
		executors.shutdown();
	}
	
}

class CallableImpl implements java.util.concurrent.Callable<String>{
	
	private String callableName;
	
	public CallableImpl(String callableName) {
		this.callableName = callableName;
	}

	@Override
	public String call() throws Exception {
		return "当前Callable名为: "+callableName;
	}
	
}