java並發包之Callable

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Callable和Runnable的差異

Callable介面類似於Runnable，但是Runnable不會返回結果，並且無法拋出返回結果的異常，而Callable可以

package com.wjz.demo;import java.util.concurrent.Callable;public class CallableDemo {    public static void main(String[] args) {        try {            Callable<String> call = new Callable<String>() {                @Override                public String call() throws Exception {                    return "hello world!";                }            };            System.out.println(call.call());                        Runnable run = new Runnable() {                @Override                public void run() {                    System.out.println("hello world!");                }            };            run.run();        } catch (Exception e) {            //         }    }}

 

java並發包之Callable