how to convert decimal to hexadecimal in java

Question

I need to convert the rest of the division by 16 to Hexadecimal. I'm using the Integer.toHexString method and pass the value (variable "resto") that I need to convert to hexadecimal, but the ouput value is not in hexadecimal.

int total = 50;
resto = total / 16;
String decimal = Integer.toHexString(resto);
System.out.println(decimal);

outputs 3

Answer 1

Using toHexString() method of Integer class.

Exmple :

import java.util.Scanner;
class DecimalToHexExample
{
    public static void main(String args[])
    {
      Scanner input = new Scanner( System.in );
      System.out.print("Enter a decimal number : ");
      int num =input.nextInt();

      // calling method toHexString()
      String str = Integer.toHexString(num);
      System.out.println("Decimal to hexadecimal: "+str);
    }
}

Output:

Enter a decimal number : 123
Decimal to hexadecimal: 7b