innerclassdemo.java

来自「这是清华大学编写的JAVA教材中所有题目的源代码！」· Java 代码 · 共 44 行

class OuterClass
{
	String str;
	boolean outerClassAccessible;
	//static boolean outerClassAccessible;
	
	public OuterClass()
	{
		str=new String("OuterClass 变量");
		outerClassAccessible=true;
		System.out.println(str);
		System.out.println("outerClassAccessible:"+outerClassAccessible);
		//System.out.println("inClassAccessible:"+inClassAccessible);
		InnerClass in=new InnerClass();//用内部类对象访问
		System.out.println("inClassAccessible:"+in.inClassAccessible);
	}
	
	class InnerClass
	//static class InnerClass
	{
		String str;
		boolean inClassAccessible;
		
		public InnerClass()
		{
			str=new String("InnerClass变量：");
			inClassAccessible=true;
			System.out.println(str);
			System.out.println("outerClassAccessible:"+outerClassAccessible);
			System.out.println("inClassAccessible:"+inClassAccessible);
		}
	}
}

public class InnerClassDemo
{
	public static void main(String args[])
	{
		OuterClass outer=new OuterClass();
		System.out.println();
		OuterClass.InnerClass in=outer.new InnerClass();
		//OuterClass.InnerClass in=new OuterClass.InnerClass();
	}
}