using System;

​

// https://www.runoob.com/java/java-generics.html

​

public class Program

{

    public static void Main()

    {

        //Java 的Primitive Type等同C#的Value Type

        Box<int> integerBox = new Box<int>(); // Java的泛型不支援Primitive Type(因為在編譯器實作泛型，不是在JVM實作)，必須改寫成Box<Integer> integerBox = new Box<Integer>();

        integerBox.add(10);

​

        Console.WriteLine("數值為:{0}",integerBox.get());

    }

}

​

class Box<T> {

  private T t;

  public void add(T t) {

    this.t = t;

  }

  public T get() {

    return t;

  }

}

​

/******************************************************************************

// Java 版本

​

public class Box<T> {

  private T t;

  public void add(T t) {

    this.t = t;

  }

  public T get() {

    return t;

  }

  public static void main(String[] args) {

    Box<Integer> integerBox = new Box<Integer>();

     //Box<int> integerBox = new Box<int>();

    Box<String> stringBox = new Box<String>();

    integerBox.add(new Integer(10));

    stringBox.add(new String("菜鸟教程"));

    System.out.printf("整型值为 :%d\n\n", integerBox.get());

    System.out.printf("字符串为 :%s\n", stringBox.get());

  }

}

​

*******************************************************************************/