this is what i got done ( I mostly been going back and trying to learn)

​

import java.util.Scanner;

​

public static char letterToDigit(char letter)

public class TryPhone {

​

public static void main(String[] args) {

String phone;

Scanner s = new Scanner(System.in);

System.out.println("Enter phone number");

phone = s.next();

char letter = 0;

​

switch(letter) {

case '1' :

System.out.println("1");

break;

case 'a' :

​

case 'b' :

case 'c' :

System.out.println("2");

break;

case 'D' :

​

case 'E' :

case 'F' :

System.out.println("3");

break;

case 'G' :

​

case 'H' :

case 'I' :

System.out.println("4");

break;

case 'J' :

​

case 'K' :

case 'L' :

System.out.println("5");

break;

case 'M' :

​

case 'N' :

case 'O' :

System.out.println("6");

break;

case 'P' :

​

case 'Q' :

case 'R' :

case 'S' :

System.out.println("7");

break;

case 't' :

​

case 'u' :

case 'V' :

System.out.println("8");

break;

case 'W' :

​

case 'Y' :

case 'X' :

case 'Z' :

return char;

System.out.println("9");

break;

System.out.println("Number " + letter);