java new thread示例
时间: 2023-09-16 19:10:44 浏览: 59
Sure! Here's a Java code snippet for creating a new thread:
Thread thread = new Thread(() -> {
// code to run in the new thread
});
thread.start();
This creates a new thread that will run the code inside the lambda expression. The start() method is called to actually begin the execution of the thread.
相关问题
java Thread 示例代码
可以的,以下是一个简单的Java线程示例代码:
```java
public class MyThread extends Thread {
public void run() {
System.out.println("MyThread is running");
}
public static void main(String args[]) {
MyThread thread = new MyThread();
thread.start();
}
}
```
以上代码定义了一个名为MyThread的类,该类继承自Thread类。在run方法中,我们可以编写线程要执行的代码。在main方法中,我们实例化了一个MyThread对象,并调用start方法来启动该线程。一旦线程被启动,它将自动调用run方法中的代码。这个简单的示例只是展示了如何创建和启动一个线程,实际上线程的使用远远不止于此。
java死锁代码示例
下面是一个简单的Java死锁代码示例:
```java
public class DeadlockExample {
private final Object lock1 = new Object();
private final Object lock2 = new Object();
public void method1() {
synchronized (lock1) {
System.out.println("Method 1 acquired lock1");
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
synchronized (lock2) {
System.out.println("Method 1 acquired lock2");
}
}
}
public void method2() {
synchronized (lock2) {
System.out.println("Method 2 acquired lock2");
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
synchronized (lock1) {
System.out.println("Method 2 acquired lock1");
}
}
}
public static void main(String[] args) {
DeadlockExample example = new DeadlockExample();
Thread thread1 = new Thread(() -> example.method1());
Thread thread2 = new Thread(() -> example.method2());
thread1.start();
thread2.start();
}
}
```
在上面的代码中,有两个线程分别执行`method1`和`method2`方法。每个方法都需要获得两个锁才能执行,但是它们的锁顺序不同,这就导致了死锁的可能性。如果`thread1`获得了`lock1`,然后`thread2`获得了`lock2`,那么它们就会互相等待对方释放锁,从而进入死锁状态。
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