Java_decimal_to_hex

package com.company;

import java.util.Scanner;

public class Main {


    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        System.out.println("Wprowadź liczbę dziesiętną: ");
        int n = input.nextInt();
        int p;
        String binary = "";
        while (n != 0) {
            p = n % 16;


            switch (p){
                case 10:
                    binary += "A";
                    break;
                case 11:
                    binary += "B";
                    break;
                case 12:
                    binary += "C";
                    break;
                case 13:
                    binary += "D";
                    break;
                case 14:
                    binary += "E";
                    break;
                case 15:
                    binary += "F";
                    break;
                default:
                    binary += p;
                    break;
            }

        /*    if (p == 10){
                binary += "A";
            } else if (p == 11) {
                binary += "B";
            } else if (p == 12) {
                binary += "C";
            } else if (p == 13) {
                binary += "D";
            } else if (p == 14) {
                binary += "E";
            } else if (p == 15 ) {
                binary += "F";
            } else binary += p; */

            n /= 16;

        }


        StringBuilder rev = new StringBuilder(binary);
          rev.reverse();
        System.out.println(rev);

        }

    }