Can I rewrite this code without using any loops? and just if/then/else? package

Question

Can I rewrite this code without using any loops? and just if/then/else?

package scramble;

import java.util.Scanner;

import java.lang.Math;

public class Scramble{

              public static void main(String[] args) {

                             Scanner input = new Scanner(System.in);

                             System.out.print("Enter 5-letter word: ");

                             String word = input.next();

                             int wordLength = word.length();

                             if (wordLength == 5) {

                                           word = word.toUpperCase(); //to uppercase

                                           String scram_word = ""; //scrambled word

                                           //variables

                                           int i;

                                           char c;

                                           int j; //to iterate

                                           //we need to generate random number 4 times (5 to 2)

                                           for(j=5; j>=2; j--)

                                           {

                                                          i = (int)(Math.random()*j); //generate random number between 0 and j

                                                          c = word.charAt(i); //get char to remove

                                                          scram_word = scram_word + c; //add char to scram_word

                                                          String before = word.substring(0,i); //string before c

                                                          String after = word.substring(i+1); //string after c

                                                          word = before + after; //word without c

                                           }

                                           scram_word = scram_word + word; //add last char

                                           System.out.println("Scrambled word: " + scram_word); //print scram_word

                                           String fake_word = ""; //fake word

                                           String vowels = ""; //vowels

                                           String consonants = ""; //consonants

                                           //get all consonants and vowels

                                           for(j=0; j<scram_word.length(); j++)

                                           {

                                                          if(scram_word.charAt(j)=='A' || scram_word.charAt(j)=='E' || scram_word.charAt(j)=='I' || scram_word.charAt(j)=='O' || scram_word.charAt(j)=='U')

                                                                        vowels = vowels + scram_word.charAt(j);

                                                          else

                                                                        consonants = consonants + scram_word.charAt(j);

                                           }

                                           //add cons and vowels to fake_word alternatively

                                           for(j=0; j<vowels.length()&&j<consonants.length(); j++)

                                                          fake_word = fake_word + consonants.charAt(j) + vowels.charAt(j);

                                           //if any vowles remained add them to fake_word

                                           if(vowels.length()>j)

                                                          fake_word = fake_word + vowels.substring(j);

                                           //if any consonants remained add them to fake_word

                                           if(consonants.length()>j)

                                                          fake_word = fake_word + consonants.substring(j);

                                           //print fake_word

                                           System.out.println("Fake word: " + fake_word);

                             }

                             else{

                                           System.out.println("Word must be 5 letters");

                                           System.exit(1);

                             }

              }

}

Thanks

Explanation / Answer

import java.util.Random;

import java.util.Scanner;

import java.lang.Math;

public class Scramble{

   public static void main(String[] args) {

       Scanner input = new Scanner(System.in);

       System.out.print("Enter 5-letter word: ");

       String word = input.next();

       int wordLength = word.length();

       if (wordLength == 5) {

           word = word.toUpperCase(); //to uppercase

           String scram_word = ""; //scrambled word

           //variables

           int i;

           char c;

           int j; //to iterate

           //we need to generate random number 4 times (5 to 2)

           int rand1, rand2, rand3, rand4;

           String after, before;

           Random rand = new Random();

           rand1 = rand.nextInt(5);

           rand2 = rand.nextInt(4);

           rand3 = rand.nextInt(3);

           rand4 = rand.nextInt(2);

           c = word.charAt(rand1); //get char to remove

           scram_word = scram_word + c; //add char to scram_word

           before = word.substring(0,rand1); //string before c

           after = word.substring(rand1+1); //string after c

           word = before + after; //word without c

           c = word.charAt(rand2); //get char to remove

           scram_word = scram_word + c; //add char to scram_word

           before = word.substring(0,rand2); //string before c

           after = word.substring(rand2+1); //string after c

           word = before + after; //word without c

           c = word.charAt(rand3); //get char to remove

           scram_word = scram_word + c; //add char to scram_word

           before = word.substring(0,rand3); //string before c

           after = word.substring(rand3+1); //string after c

           word = before + after; //word without c

           c = word.charAt(rand4); //get char to remove

           scram_word = scram_word + c; //add char to scram_word

           before = word.substring(0,rand4); //string before c

           after = word.substring(rand4+1); //string after c

           word = before + after; //word without c

           scram_word = scram_word + word; //add last char

           System.out.println("Scrambled word: " + scram_word); //print scram_word

           String fake_word = ""; //fake word

           String vowels = scram_word.replaceAll("[abcdfghjklmnpqrstvxyzABCDFGHJKLMNPRSTVWXYZ]", "");

           String consonants = scram_word.replaceAll("[aeiouAEIOU]", "");

           /* THIS LOOP CANNOT BE REMOVED SINCE THE ORDER OF CONSONANTS AND VOWELS MATTER */

           //add cons and vowels to fake_word alternatively

           for(j=0; j<vowels.length()&&j<consonants.length(); j++)

               fake_word = fake_word + consonants.charAt(j) + vowels.charAt(j);

           //if any vowels remained add them to fake_word

           if(vowels.length()>j)

               fake_word = fake_word + vowels.substring(j);

           //if any consonants remained add them to fake_word

           if(consonants.length()>j)

               fake_word = fake_word + consonants.substring(j);

           //print fake_word

           System.out.println("Fake word: " + fake_word);

       }

       else{

           System.out.println("Word must be 5 letters");

           System.exit(1);

       }

   }

}

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