摘要:
abstract class Shape{ String name; public Shape(String name) { this.name=name; } abstract void Length(); abstract void Area();} class Circle extends S 阅读全文
摘要:
package 内部类运用; import 内部类运用.Outer.Inner; class Outer{ String name="大哥"; int age=20; public class Inner{ String name ="小弟"; public void show(){ System. 阅读全文