在外部类以外使用非静态内部类

/** * 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 Out{//定义一个非静态内部类，不使用访问控制符，即同一个包中其他类可访问该内部类class In{public In(String msg){System.out.println(msg);}}}public class CreateInnerInstance{public static void main(String[] args) {Out.In in = new Out().new In("测试信息");/*上面代码可改为如下三行代码：使用OutterClass.InnerClass的形式定义内部类变量Out.In in;创建外部类实例，非静态内部类实例将寄存在该实例中Out out = new Out();通过外部类实例和new来调用内部类构造器创建非静态内部类实例in = out.new In("测试信息");*/}}