Java基础学习-Scanner类

import java.util.Scanner;

Scanner sc = new Scanner(System.in);

        System.out.println("欢迎");
        System.out.println("添加用户信息");
        Scanner sc = new Scanner(System.in);
        System.out.println("请输入会员号码（4为整数）");
        String number = sc.nextLine();
        System.out.println("请输入会员生日");
        String bir = sc.nextLine();
        System.out.println("请输入会员积分");
        String score = sc.nextLine();
        if(number.length()==4){
            System.out.println("会员信息如下");
            System.out.println(number+"\t"+bir+"\t"+score);
        }else{
            System.out.println("会员号码错误");
        }

        System.out.println("next测试");
        Scanner sn = new Scanner(System.in);
        System.out.println("请输入一个值");
        String str = sn.next();
        System.out.println(str);