摘要:
package Thread; import java.util.Scanner; public class Integer { static Scanner sc = new Scanner(System.in); //判断是否为整数(要求输入必须为整数 不是则会提示 而不是直接报错) public static void doint() { ... 阅读全文
摘要:
package DemoMap; public class User { private String id; private String password; public User() { super(); } public User(String id, String password) ... 阅读全文
摘要:
package com.chen; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; //学员管理系统 public class StudentSys { public static void main(Stri... 阅读全文
摘要:
package Exception; public class AgeException extends Exception{ public AgeException(String message) { super(message); } } package Exception; public cl 阅读全文