Java Executors defaultThreadFactory() 方法

2025年3月25日 | 1 分钟阅读

Executors 类的 defaultThreadFactory() 方法返回一个默认的线程工厂，用于创建新线程。此工厂创建由 Executor 使用的所有新线程，这些线程都在同一个 ThreadGroup 中。如果存在 SecurityManager，它将使用 System 的组。

语法

参数

不传递任何参数

返回值

一个线程工厂

Throw

不适用。

示例 1

import java.util.concurrent.Executors;  
    import java.util.concurrent.ThreadFactory;  
      
    public class ExecutordefaultThreadFactoryExample1 {  
       
        public static void main(String[] args) {  
            ThreadFactory thrdfctry = Executors.defaultThreadFactory();  
            Thread t = thrdfctry.newThread(new Mythrd());  
            t.start();        
        }   
    }  
      
    class Mythrd implements Runnable {  
       
        @Override  
        public void run() {  
            System.out.println("Running thread concurrently");  
        }  
    }  

输出

Running thread concurrently

示例 2

import java.util.Date;
    import java.util.concurrent.Executors;  
    import java.util.concurrent.ThreadFactory;  
      
    public class ExecutordefaultThreadFactoryExample2 {  
       
        public static void main(String[] args) {  
            ThreadFactory thrdfctry = Executors.defaultThreadFactory(); 
            for(int i=0 ; i<=5 ; i++){
            Thread t = thrdfctry.newThread(new Mythrd2());  
             t.start();        
        }   
    }  
    }
    class Mythrd2 implements Runnable {  
       
        @Override  
        public void run() {  
            System.out.println("Running thread concurrently  ::" +  new Date());  
        }  
    }  

输出

Running thread concurrently  ::Sun Mar 17 02:34:38 IST 2019
Running thread concurrently  ::Sun Mar 17 02:34:38 IST 2019
Running thread concurrently  ::Sun Mar 17 02:34:38 IST 2019
Running thread concurrently  ::Sun Mar 17 02:34:38 IST 2019
Running thread concurrently  ::Sun Mar 17 02:34:38 IST 2019
Running thread concurrently  ::Sun Mar 17 02:34:38 IST 2019

下一主题Java Executors

Java Executors defaultThreadFactory() 方法

语法

参数

返回值

Throw

示例 1

示例 2

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Java Executors defaultThreadFactory() 方法

语法

参数

返回值

Throw

示例 1

示例 2

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