import java.util.*;
public class scwhile{
static Scanner input = new Scanner (System.in);
public static void main (String[] args) {
char letter;
String inputMessage;
String inputString;
String outputMessage;
inputMessage = "Program to convert uppercase " + "letters to their corresponding "+ "telephone digits.\n"
+ "To stop the program enter #.\n"
+ "Enter a letter:";
System.out.println(inputMessage);
letter = input.next().charAt(0);
while (letter != '#' ) {
outputMessage = "The letter you entered is: " + letter + "\n"
+ "The corresponding telephone " + "digit is: ";
if (letter >= 'A' && letter <= 'Z'){
switch (letter){
case 'A':
case 'B':
case 'C':
outputMessage = outputMessage+ "2";
break;
case 'D':
case 'E':
case 'F':
outputMessage = outputMessage+ "3";
break;
case 'G':
case 'H':
case 'I':
outputMessage = outputMessage+ "4";
break;
case 'J':
case 'K':
case 'L':
outputMessage = outputMessage+ "5";
break;
case 'M':
case 'N':
case 'O':
outputMessage = outputMessage+ "6";
break;
case 'P':
case 'Q':
case 'R':
case 'S':
outputMessage = outputMessage + "7";
break;
case 'T':
case 'U':
case 'V':
outputMessage = outputMessage+ "8";
break;
case 'W':
case 'X':
case 'Y':
case 'Z':
outputMessage = outputMessage+ "9";}
}
else
outputMessage = outputMessage + "Invalid input";
System.out.println(outputMessage);
inputMessage = "Enter another uppercase letter " + "to find its corresponding " + "telephone digit.\n"
+ "To stop the program enter #.\n"
+ "Enter a letter:";
System.out.println (inputMessage);
letter = input.next().charAt(0);
}//end while
}
}ahmm.... it can be change number to letter?? can u help me to change it?
