实现会员注册，要求用户名长度不小于3，密码长度不小于6，注册时两次输入密码必须相同

* @date 2020/3/23 - 22:07
 */
public class Eigth {

    public static void main(String[] args) {
        Scanner sc=new Scanner(System.in);
        Scanner sc2=new Scanner(System.in);
        Scanner sc3=new Scanner(System.in);

        System.out.println("请输入用户名");
        String name=sc.next();
        System.out.println("请输入密码");
        int pass = sc2.nextInt();
        System.out.println("请再次输入密码");
        int pass2 = sc3.nextInt();

        if (name.length()<3)
        {
            System.out.println("用户名不能小于3");
        }
        if(pass!= pass2 ){
            System.out.println("两次输入密码不一样");
        }
    }
}

import java.util.Scanner;
public class Register {
	String name;
	String password;
	String newPassword;
	///////////
	public void nameExe(){
		Scanner input=new Scanner(System.in);
		System.out.println("请输入用户名,密码和验证密码");
	     System.out.print("用户名:");
		 name=input.next();
		 System.out.print("密码:");
	     password=input.next();
	     System.out.print("验证密码:");
		 newPassword=input.next();

		while(name.length()<3||(password.equals(newPassword)==false)
				||(password.length()<6)){
			if(name.length()<3){
			System.out.println("用户名不能小于3");
			}
			if((password.equals(newPassword)==false)||password.length()<6){
			System.out.println("两次输入密码不一样或密码不能小于6位");	
			}
			System.out.println("\n"+"请重新输入");
			 System.out.print("用户名:");
			 name=input.next();
			 System.out.print("密码:");
		     password=input.next();
		     System.out.print("验证密码:");
			 newPassword=input.next(); 
		}
		 System.out.println("注册成功!");
		}	
		}

 public class Verify {
	public static void main(String[] args) {
		Register m1=new Register();
		m1.nameExe();
	}
}