2. 实现Runnable接口 通过实现Runnable接口,并重写其run方法,也可以实现自定义线程。这种方式下,线程对象可以是任意实现了Runnable接口的类的实例。这种方式更加灵活,因为Java不支持多重继承,但可以实现多个接口。 java public class CustomThreadByImplementingRunnable implements Runnable { // 重写run方法,定义线程要执行...
也就是说，并不是Thread一定要实现Runnable，而是有了Runnable这个概念后，发现Thread的某一种用法刚好符合...
public static void main(String[] args) { Thread t1 = new Thread(new HeavyWorkRunnable(), "t1"); Thread t2 = new Thread(new HeavyWorkRunnable(), "t2"); System.out.println("Starting Runnable threads"); t1.start(); t2.start(); System.out.println("Runnable Threads has been started")...
程序继承了Thread 实现Runnable,接口的方法是需要全部实现的,而Runnable接口源码如下: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 public interfaceRunnable { /** * When an object implementing interface Runnable is used * to create a thread, starting the thread causes the object's * run method t...
1.1. By ExtendingThreadClass To create a new thread, extend the class withThreadand override therun()method. classSubTaskextendsThread{publicvoidrun(){System.out.println("SubTask started...");}} 1.2. By ImplementingRunnableInterface Implementing theRunnableinterface is considered a better approach ...
reality , you do not need Thread class behavior , because in order to use a thread you need to instantiate one anyway. On the other hand, Implementing the Runnable interface gives you the choice to extend any class you like , but still define behavior that will be run by separate thread...
这里MyTask 就是一个 Runnable,实现了 run() 方法,作为 Thread() 的入参。 基本所有同学都知道这样使用,但是你们知道原理么? 1.3 Thread 和 Runnable 的关系 我们看一下 Runnable 的接口定义: public interface Runnable { /** * When an object implementing interface Runnable is used * to create a...
方法二:Implementing java.lang.Runnable 通过实现java.lang.Runnable接口,亦可以定义一个thread,示例如下: Java代码 classMyRunnableimplementsRunnable { publicvoidrun() { System.out.println("Important job running in MyRunnable"); } } 注意:因为是implements一个interface,因此你必须实现其public void run();方...
ImplementingRunnablemakes your class more flexible. If you extendThreadthen the action you’re doing is always going to be in a thread. However, if you implementRunnableit doesn’t have to be. You can run it in a thread, pass it to some kind of executor service, or just pass it around...
RUNNABLE(运行状态):Java虚拟机中处于该状态的线程,对应操作系统状态中的Running和Ready,表示该线程正在执行或者等待操作系统分配执行时间 BLOCKED(阻塞状态):当多个线程进行资源争抢,等待获取一个排他锁的线程会处于该状态,当线程获取到锁之后状态会变为RUNNABLE状态,其他等待锁的线程继续处于BLOCKED状态,一般被synchronized...