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i am a biggner for java and i have a code to make that we input a alphabet and system will prompt number regarding that(phone key pad) it's giving me several errors and returning value 0 after compilation instead of other corresponding values. can some1 please help me

What I have tried:

import java.util.Scanner;
public class PhoneKeyPads{

public static void main(String[] args)
{
Scanner input=new Scanner(System.in);

System.out.println("Enter a letter from A to Z:");
String letterString = input.next();

int number=0;



switch (number){


case 'A':
case 'B':
case 'C': number = 2 ;
break;
case 'D':
case 'E':
case 'F':
number = 3;
break;
case 'G':
case 'H':
case 'I':
number = 4;
break;
case 'J':
case 'K':
case 'L':
number = 5;
break;
case 'M':
case 'N':
case 'O':
number = 6;
break;
case 'P':
case 'Q':
case 'R':
case 'S':
number = 7;
break;
case 'T':
case 'U':
case 'V':
number = 8;
break;
case 'W':
case 'X':
case 'Y':
case 'Z':
number = 9;
break;
}
System.out.println(number);

}

}
Posted
Updated 5-Feb-18 21:43pm

1 solution

You are checking the number variable in your switch statement:
Java
int number=0;
switch (number){
// ...
You have to check the character from the input instead:
Java
int number=0;
switch (letterString.charAt(0)) {
// ...
 
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