【Java】了解线程 Thread 类的使用，如何创建、终止、等待一个线程以及获取线程的状态

创建线程：

// 方法一：继承Thread类
public class MyThread extends Thread {
    public void run(){
        System.out.println("线程开始执行");
    }
}
 
// 创建并启动线程
MyThread myThread = new MyThread();
myThread.start();
 
// 方法二：实现Runnable接口
public class MyRunnable implements Runnable {
    public void run(){
        System.out.println("线程开始执行");
    }
}
 
// 创建并启动线程
MyRunnable myRunnable = new MyRunnable();
Thread thread = new Thread(myRunnable);
thread.start();

终止线程：

// 通常不建议直接终止线程，而是使用标志位来优雅地结束线程
public class ControlledThread extends Thread {
    private volatile boolean running = true;
 
    public void run(){
        while (running) {
            // 执行任务
        }
    }
 
    public void stopRunning(){
        running = false;
    }
}
 
ControlledThread controlledThread = new ControlledThread();
controlledThread.start();
// 当需要终止线程时
controlledThread.stopRunning();

等待线程：

Thread thread = new Thread(myRunnable);
thread.start();
 
// 等待线程终止
thread.join();

获取当前线程：

Thread currentThread = Thread.currentThread();
currentThread.getName(); // 获取线程名称