inner2.java

提供了常用的JAVA技术的示例

// 例 5-28 内部类中加上 修饰符 存取同名外部类成员

package Inner2;

class Inner3{
    int x=4;
    public void method(){
        Inner2 inner2=new Inner2();
        Inner2.Inner  inner=inner2.new Inner();
        System.out.println("在并行的外部类 Inner3 中访问 Inner2 的内部类 Inner :");
        inner.doStuff(10);
    }

}
public class Inner2 {
    private static int size2;

    public class Inner{  // 内 部 类
        private int size1;
        public void doStuff(int s){
            int size=s;  // 可以去掉此句

            //this.size1=size;  //  5
            this.size1=size1;   //  0
            Inner2.this.size2=size2;

            System.out.println("size="+s);
            System.out.println("this.size1="+this.size1);
            System.out.println("Inner2.this.size="+Inner2.this.size2);

            Inner3 i3=new Inner3();
            System.out.println("InnerVisiteOuter="+i3.x);

        }
    }

    public void visitedInner3(){
        Inner3 i3=new Inner3();
        i3.method();
    }


    public void testInner(){
        Inner i=new Inner();
        i.doStuff(5);
    }

    public static void main(String a[]){
        Inner2 o=new Inner2();
        Inner i=o.new Inner();
        i.doStuff(2);
        o.testInner();
        o.visitedInner3();
    }
}