loop and save letters in a string java
public static void main(String[] args){ Scanner input = new Scanner(System.in); System.out.print("Enter phone number: "); String number = input.nextLine(); String phone =""; for (int i = 0; i < number.length(); i++){ if (Character.isLetter(number.charAt(i))) phone = getNumber(Character.toUpperCase(number.charAt(i))); else number.charAt(i); } System.out.println("Your number is " + phone); } public static int getNumber(char uppercaseLetter){ if (uppercaseLetter >= 'W' && uppercaseLetter <= 'Z') return 9; else if (uppercaseLetter >= 'T' && uppercaseLetter < 'W') return 8; else if (uppercaseLetter >= 'P' && uppercaseLetter < 'T') return 7; else if (uppercaseLetter >= 'M' && uppercaseLetter < 'P') return 6; else if (uppercaseLetter >= 'J' && uppercaseLetter < 'M') return 5; else if (uppercaseLetter >= 'G' && uppercaseLetter < 'J') return 4; else if (uppercaseLetter >= 'D' && uppercaseLetter < 'G') return 3; else return 2; } }
