SHA-1 Hash Algorithm

import java.math.BigInteger;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
// Main class
public class Solution {
    public static String encryptThisString(String input)
    {  
        // handling exceptions
        try {
            // getInstance() method is called with algorithm SHA-1
            MessageDigest md = MessageDigest.getInstance("SHA-1");

            // digest() method is called to calculate message digest of the input string
            byte[] messageDigest = md.digest(input.getBytes());

            // Convert byte array into signum representation
            BigInteger no = new BigInteger(1, messageDigest);

            // Convert message digest into hexadecimal value
            String hashtext = no.toString(16);

            // Add preceding 0s to make it a 32 bit value
            while (hashtext.length() < 32) {
                hashtext = "0" + hashtext;
            }
            // return the HashText created
            return hashtext;
        }
        // For specifying wrong message digest algorithms
        catch (NoSuchAlgorithmException e) {
            throw new RuntimeException(e);
        }
    }

    // Driver code
    public static void main(String args[]) throws NoSuchAlgorithmException{
        System.out.print("HashCode Generated by SHA-1 for: ");

        String str1 = "Board Infinity";
        System.out.print("\n" + str1 + " : " + encryptThisString(str1));

        String str2 = "Website";
        System.out.println("\n" + str2 + " : " + encryptThisString(str2));
    }
}

HashCode Generated by SHA-1 for:
Board Infinity : 50c2390e01c9f14df32862503e9fffbc380100c
Website : 2e8a57cc5c472f4ac3b071979a38e80db7e59e87