Exercise04_11.java

package Ch_04;

import java.util.Scanner;

public class Exercise04_11 {
	public static void main(String[] args) {
		
		System.out.println("Please enter a decimal number from (0 to 15): ");
		
		Scanner input = new Scanner(System.in);
		int userInput = input.nextInt();
	
			if (userInput > 15 || userInput < 0) {
			System.out.println("Invalid number, please try again and enter a decimal number from 0 and 15");
				}
			if (userInput >= 0 && userInput <= 9) {
				System.out.println("The hex value is " + userInput);
				}
			
			switch (userInput) {
			case 10:
				System.out.println("The hex value is " + "A");
				break;
				
			case 11:
				System.out.println("The hex value is " + "B");
				break;
				
			case 12:
				System.out.println("The hex value is " + "C");
				break;
				
			case 13:
				System.out.println("The hex value is " + "D");
				break;
				
			case 14:
				System.out.println("The hex value is " + "E");
				break;
				
			case 15:
				System.out.println("The hex value is " + "F");
				break;
			}


		
		}
			
		}