Question

Java

Write a method, makeUserName, that is passed two Strings and an int: the first is a first name, the second is a last name, and the last is a random number. The method returns a user name that contains the last character of the first name, the first five characters of the last name (assume there are five or more characters in last name), and the random number. An example: Assume that “John”, “Smith”, 45, are passed when the method is called, it will return “nSmith45” as the user name.

Answer 1

import java.util.*;

class Test
{
   public static void main (String[] args)
   {
       Scanner input = new Scanner(System.in);
      
       System.out.println("Enter first name of user : ");
       String firstName = input.next();
      
      
       System.out.println("Enter last name of user : ");
       String lastName = input.next();
      
       int num = (int)(Math.random()*99+1); // random num between 1 and 100
      
       System.out.println("User name : "+makeUserName(firstName,lastName,num));
      
   }
   public static String makeUserName(String firstName,String lastName, int num)
   {
       String result;
      
       result = firstName.charAt(0)+ lastName + num;
       return result;
      
   }
}

Output:

Enter first name of user : John
Enter last name of user : Smith
User name : JSmith5

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