1、接收的参数不一样
public class MainTest {
public static void main(String[] args) throws Exception {
ExecutorService pool = Executors.newFixedThreadPool(10);
pool.execute(new Runnable() {
@Override
public void run() {
System.out.println("execute");
}
});
Future<?> submit = pool.submit(new Runnable() {
@Override
public void run() {
System.out.println("submit");
}
});
//等任务执行完毕会打印null
System.out.println(submit.get());
FutureTask<Integer> submit2 = (FutureTask<Integer>) pool.submit(new Callable<Integer>() {
@Override
public Integer call() throws Exception {
System.out.println("submit_2");
return 2;
}
});
System.out.println("result=" + submit2.get());
}
}
2、返回值不一样
submit有返回值Future，而execute没有。
Java FutureTask
3、submit方便Exception处理
public class MainTest {
public static void main(String[] args) throws Exception {
ExecutorService pool = Executors.newFixedThreadPool(10);
Future submit = pool.submit(new Runnable() {
@Override
public void run() {
System.out.println("submit");
System.out.println(0/0);
}
});
try {
System.out.println("result=" + submit.get());
}catch (Exception e){
System.out.println(e);
}
}
}
