Ceasar Encryption of Peter's

/** * This program prints things that are shifted * Author: Peter.T * created: 9/14/2017 */ import java.util.*; public class Shift//class header { public static void main(String[] args) { boolean why = true; int shift; int place; String encrypt = ""; Scanner scan = new Scanner(System.in); String alpha = "abcdefghijklmnopqrstuvwxyz"; System.out.println("Please enter a word using the american alphabet."); String word = scan.nextLine(); System.out.println("Please type by how much you want to shift the word."); shift = scan.nextInt(); while(why==true){//restarts the program if user so choose for(int i = 0;i<word.length();i++){ String index = word.substring(i,i+1); place = alpha.indexOf(index); int shifted = (place + shift)%26; encrypt += alpha.substring(shifted,shifted+1); } System.out.println(encrypt); System.out.println("do you want to shift another word or sentence? type 1 to play again and 2 to quit"); int num = scan.nextInt(); if(num==2){ why = false; } } } }