摘要：package cn.cty; public class L { public static void main(String[] args) { int []arr = new int[30]; arr[0]=1; arr[1]=1; for(int i=2;i<arr.length;i++) a 阅读全文

摘要：abstract class A{ private String name; public A(String name) { this.name = name; } public String getName() { return this.name; } public abstract void fun(); } ... 阅读全文