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Java program to convert decimal to hexadecimal using recursion

// Java program to convert decimal to hexadecimal 
// using the recursion

import java.util.*;

public class Main {
  static char[] hexChar = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'};
  
  static String strHex = "";
  static int num = 0;

  public static String decToHex(int dec) {
    if (dec != 0) {
      num = dec % 16;
      strHex = hexChar[num] + strHex;
      dec = dec / 16;
      decToHex(dec);
    }
    return strHex;
  }

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

    int num = 0;
    String res;

    System.out.printf("Enter number: ");
    num = X.nextInt();

    res = decToHex(num);
    System.out.printf("Hex-Decimal number is: " + res);
  }
}

Output

Enter number: 234
Hex-Decimal number is: EA