多线程在C#和java中的实现

在java中实现多线程有两种方法

1）继承Thread类

2)实现Runnable接口

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看代码

 

class MultiThread
{
    public static void main(String[] args)
    {
        Thread mte=new Thread(new MyThreadEx());
        mte.start();

        Thread mti=new Thread(new MyThreadIm());
        mti.start();

        System.out.println("Main Thread name is:"+Thread.currentThread().getName());
    }
}
//继承Thread类
class MyThreadEx extends Thread
{
    public MyThreadEx()
    {
    }
    public void run()
    {
        System.out.println("extends Thread");
    }
}
//实现Runnable接口
class MyThreadIm implements Runnable
{
    public MyThreadIm()
    {
    }
    public void run()
    {
        System.out.println("implements Runnable");
    }
}

class MultiThread { public static void main(String[] args) { Thread mte=new Thread(new MyThreadEx()); mte.start(); Thread mti=new Thread(new MyThreadIm()); mti.start(); System.out.println("Main Thread name is:"+Thread.currentThread().getName()); } } //继承Thread类 class MyThreadEx extends Thread { public MyThreadEx() { } public void run() { System.out.println("extends Thread"); } } //实现Runnable接口 class MyThreadIm implements Runnable { public MyThreadIm() { } public void run() { System.out.println("implements Runnable"); } }

 

 

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而在C#中，系统已经为我们写好委托，方法体可以由我们自己来自由地实现,

而C#里线程又分两种，1)带参数的和2)不带参数的

事实上，C#细分的话，带参数的和不带参数的都分别一个重载方法，所以加起来共四个

看MSDN:

名称 说明

Thread (ParameterizedThreadStart)	初始化 Thread 类的新实例，指定允许对象在线程启动时传递给线程的委托。
Thread (ThreadStart)	初始化 Thread 类的新实例。 由 .NET Compact Framework 支持。
Thread (ParameterizedThreadStart, Int32)	初始化 Thread 类的新实例，指定允许对象在线程启动时传递给线程的委托，并指定线程的最大堆栈大小。
Thread (ThreadStart, Int32)	初始化 Thread 类的新实例，指定线程的最大堆栈大小。 由 .NET Compact Framework 支持。

 

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再看代码实现

using System;
using System.Collections.Generic;
using System.Text;
using System.Threading;

namespace ThreadTest
{
    class Program
    {
        static void Main(string[] args)
        {
            //不带参数的线程实现
            Thread thdNoparam = new Thread(new ThreadStart(NoParamsMethod));
            thdNoparam.Start();

            //带参数的线程实现
            Thread thdParam = new Thread(new ParameterizedThreadStart(ParamsMethod));
            thdParam.Start("Thread implement with params !");

        }
        //方法的实现
        static void NoParamsMethod()
        {
            Console.WriteLine("Thread implement with no params !");
        }
        //方法的实现
        static void ParamsMethod(object obj)
        {
            //do something with obj
            Console.WriteLine(obj.ToString());
        }
    }
}

using System; using System.Collections.Generic; using System.Text; using System.Threading; namespace ThreadTest { class Program { static void Main(string[] args) { //不带参数的线程实现 Thread thdNoparam = new Thread(new ThreadStart(NoParamsMethod)); thdNoparam.Start(); //带参数的线程实现 Thread thdParam = new Thread(new ParameterizedThreadStart(ParamsMethod)); thdParam.Start("Thread implement with params !"); } //方法的实现 static void NoParamsMethod() { Console.WriteLine("Thread implement with no params !"); } //方法的实现 static void ParamsMethod(object obj) { //do something with obj Console.WriteLine(obj.ToString()); } } }

 

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各有各的特点