使用Callable接口创建线程池

步骤：

创建线程池对象
创建 Callable 接口子类对象
提交 Callable 接口子类对象
关闭线程池
实例：

class TaskCallable implements Callable<Integer> {

@Override
public Integer call() throws Exception {
for (int i = 0; i < 10; i++) {
System.out.println(Thread.currentThread().getName()+" "+i);
}
return null;
}
}
public class ThreadPoolOfCallable {

public static void main(String[] args) {
ExecutorService service = Executors.newFixedThreadPool(3);
TaskCallable c = new TaskCallable();
TaskCallable c1 = new TaskCallable();

//线程池中获取线程对象，调用run方法
service.submit(c);
//再获取一个
service.submit(c1);
//关闭线程池
service.shutdown();
}

}

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