createstaticinnerinstance.java

疯狂Java讲义_源码(含Java设计模式CHM

/**
 * Description:
 * <br/>Copyright (C), 2005-2008, Yeeku.H.Lee
 * <br/>This program is protected by copyright laws.
 * <br/>Program Name:
 * <br/>Date:
 * @author  Yeeku.H.Lee [e-mail]
 * @version  1.0
 */
class StaticOut
{
	//定义一个静态内部类，不使用访问控制符，即同一个包中其他类可访问该内部类
	static class StaticIn
	{
		public StaticIn()
		{
			System.out.println("静态内部类的构造器");
		}
	}
}
public class CreateStaticInnerInstance
{
	public static void main(String[] args) 
	{
		StaticOut.StaticIn in = new StaticOut.StaticIn();
		/*
		上面代码可改为如下两行代码：
		使用OutterClass.InnerClass的形式定义内部类变量
		StaticOut.StaticIn in;
		通过new来调用内部类构造器创建静态内部类实例
		in = new StaticOut.StaticIn();
		*/
	}
}