delegate 在Java和C#中的应用
Delegate是引用类型允许间接访问方法。以下是简单和多维的委托Delegate
Delegates are reference types which allow indirect calls to methods. There are single and multicastdelegates.============================================ using System; using System.IO; public class DelegateTest { public delegate void Print (String s); public static void Main() { Print s = new Print (toConsole); Print v = new Print (toFile); Display (s); Display (v); } public static void toConsole (String str) { Console.WriteLine(str); } public static void toFile (String s) { File f = new File("delegate.txt"); StreamWriter fileOut = f.CreateText(); fileOut.WriteLine(s); fileOut.Flush(); fileOut.Close(); } public static void Display(Print pMethod) { pMethod("This should be displayed in the console"); } }A delegate instance encapsulates one or more methods, each of which is referred to as a callable entity. To add or reduce a list of calls by using operators += or -=. for example Print p = s + v; s += v;
对比可以得出的概念是：Java中没有这个Delegate的概念，但是通过反射的方法可以实现，C#却可以通过直接使用Delegate用来实现函数方法的间接调用。
转载自：http://blog.csdn.net/zzhays/article/details/11518925