Need Help with Boolean expressions

Question

I wrote this code to convert from base16 to base10:
int intValue = Integer.parseInt(hex, 16);
my issue is i wanna a write a code that if an input of "1heg5" would print out a message saying entered wrong code.

Answer 1

This is just a quick one i did. my problem is that whenever i type 1 it goes straight away to catch statement. this is what happens:
1. Entre a digit
2. Exit
1 or 2: 1
Enter a digit: Wrong digit
import java.util.*;
public class stuff
public static void main(String[] args)
Scanner kb = new Scanner(System.in);
System.out.println("1. Entre a digit");
System.out.println("2. Exit");
System.out.print("1 or 2: ");
int input = kb.nextInt();
if (input == 1)
System.out.print("Enter a digit: ");
try
String digit1 = kb.nextLine();
int digit2 = Integer.parseInt(digit1, 16);
System.out.println("Your answer is: "+digit2);
catch(Exception e)
System.out.println("Wrong digit");
else
System.exit(0);
Message was edited by:
IH82BU
Message was edited by:
IH82BU