EAUsername.java

import java.util.*;
/**
 * Write a description of class strings here.
 *
 * @author (your name)
 * @version (a version number or a date)
 */
public class strings
{
    public static void main(String args[]){
        Scanner scan = new Scanner(System.in);
        System.out.println("Write your FULL name");
        String fullName = scan.nextLine();
        System.out.println("Write your 4 digit graduation year");
        String gradYear = scan.nextLine();
        int firstSpace = fullName.indexOf(" ");
        String firstName = fullName.substring(0,(firstSpace));
        String restOfName = fullName.substring(firstSpace + 1);
        int secondSpace = restOfName.indexOf(" ");
        //System.out.println("second space = " + secondSpace);
        int NamesNum = 0;
        String lastName;
        String middleName = "";
        String username = "";
        //System.out.println(firstName);
        if(secondSpace == -1){
            NamesNum = 2;
            lastName = restOfName;
            //System.out.println("1 space");
        }
        else{
            NamesNum = 3;
            //System.out.println(fullName.length());
            middleName = restOfName.substring(0,secondSpace);
            lastName = restOfName.substring(secondSpace+1);
            //System.out.println("2 spaces");
        }
        gradYear = gradYear.substring(2);
        //System.out.println(firstName);
        //System.out.println(middleName);
        //System.out.println(lastName);
        if(middleName.length() > 0 && lastName.length() > 3){
            
            username = lastName.substring(0,4) + firstName.substring(0,1) + middleName.substring(0,1) + gradYear;
        }else if(lastName.length() > 3){
            username = lastName.substring(0,4) + firstName.substring(0,1) + gradYear;
        }else if(middleName.length() > 0){
            username = lastName + firstName.substring(0,1) + middleName.substring(0,1) + gradYear;
        }else{
            username = lastName + firstName.substring(0,1) + gradYear;
        }
        System.out.println(username);
        System.out.println("If you would like a password too, type 0");
        int x = scan.nextInt();
        if(x == 0){
            String letters = "abcdefghijklmnopqrstuvwxyz";
            String numbers = "0123456789";
            String spec = "!@#$%^&*?";
            int count = 0;
            int pick;
            int rand;
            String password = "Password: ";
            int lettersUsed = 0;
            int numbersUsed = 0;
            int specUsed = 0;
            int upperUsed = 0;
            while (count < 8){
                //(int)(Math.random() * ((max-min) + 1)) + min;
                pick = (int)(Math.random()*(3+1));
                if(pick == 0){
                    lettersUsed++;
                    rand = (int)(Math.random() * ((letters.length()-1-1) + 1)) + 1;
                    password = password + letters.substring(rand-1, rand);
                    
                }else if(pick == 1){
                    numbersUsed ++;
                    rand = (int)(Math.random() * ((numbers.length()-1-1) + 1)) + 1;
                    password = password + numbers.substring(rand-1, rand);
                }else if(pick == 2){
                    specUsed ++;
                    rand = (int)(Math.random() * ((spec.length()-1-1) + 1)) + 1;
                    password = password + spec.substring(rand-1, rand);
                }else{
                    upperUsed ++;
                    rand = (int)(Math.random() * ((letters.length()-1-1) + 1)) + 1;
                    password = password + (letters.substring(rand-1, rand)).toUpperCase();
                }
                count++;
            }
            
            System.out.println(password);
        }
        }
    }