小小java程序--用户注册

import java.util.*;

public class Example_1

{

public static void main(String args[])

{

String Username = new String();

String Prifix = new String("Mr./Ms. ");

Scanner inputName = new Scanner(System.in);

while(Username.isEmpty()){

System.out.println("Please enter your name");

Username = inputName.next();

System.out.println("Length of your name is:"+Username.length());

}

System.out.println("Please enter password:");

String Password1 = inputName.next();

System.out.println("Please enter password again:");

String Password2 = inputName.next();

if(Password1.equals(Password2))

{

System.out.println("Congratulations!Succeed in registration!");

}

System.out.println("Your name is: ");

System.out.println(Username.toString());

System.out.println("We can call you :"+Prifix.concat(Username));

for(int i=Password1.length()/3; i<=Password1.length()*2/3; i++){

Password1 = Password1.replace(Password1.charAt(i),'*');

}

System.out.println("Password: "+Password1);

}

}

by.Will