testinner.java

这是一张java应用教程的随书光盘

class A {
	private int s=99;
	public class B{
		public void showOuter() {
		    System.out.println("在外部类B中s=" + s);
				}
		public void showInner() {
		   	s = 100; 
			System.out.println("在内部类B中s=" + s);
		}
	}
	public void look() {
		B b = new B();
		b.showOuter();
	}
}
public class TestInner {	
	public static void main(String args[]){
		A a = new A();
		A.B ab =a.new B(); // 创建一个依赖于a而存在的ab
        a.look ();
        ab.showInner();
        }
}