Convert Decimal to Hexadecimal Java Program

Convert Decimal to Hexadecimal Java Program

Java Program:

import java.util.Scanner;

public class hTd {

       public static int parseHex(String hexString) {

              if (hexString == null)

              return 0;

              int Power = 0;

              int Total = 0;

              for (int i = hexString.length()-1; i >=0; i--) {

              char c = hexString.charAt(i);

              int Val = 0;

              switch (c) {

              case '0':

              case '1':

              case '2':

              case '3':

              case '4':

              case '5':

              case '6':

              case '7':

              case '8':

              case '9':

              Val = Integer.parseInt(c + "");

              break;

              case 'A': case 'a':

              Val = 10;

              break;

              case 'B': case 'b':

              Val = 11;

              break;

              case 'C': case 'c':

              Val = 12;

              break;

              case 'D': case 'd':

              Val = 13;

              break;

              case 'E': case 'e':

              Val = 14;

              break;

              case 'F': case 'f':

              Val = 15;

              break;

              default:

              System.err.println("invalid character: " + c);

              Val = 0;

              break;

              }

              Total += (Math.pow(16, Power) * Val);

              Power++;

              }

              return Total;

              }

       public static void main(String[] args) {

              System.out.print("enter number to convert from decimal to hexadecimal: ");

              Scanner input = new Scanner(System.in);

              String in=input.nextLine();

              System.out.print("Hexadecimal number is : "+parseHex(in));

       }

    }

Snapshots: