Gets the random number. - Java java.util

Java examples for java.util:Random

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Description

Gets the random number.

Demo Code


//package com.java2s;
import java.math.BigInteger;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

public class Main {
    /**/* w  ww.j  a v  a 2  s  . c  o  m*/
     * Gets the random number.
     *
     * @param s the s
     * @return the random number
     * @throws Exception the exception
     */
    public static int getRandomNumber(String s) throws Exception {
        MessageDigest m;
        try {
            m = MessageDigest.getInstance("MD5");
            byte[] data = s.getBytes();
            m.update(data, 0, data.length);
            BigInteger i = new BigInteger(1, m.digest());
            return i.intValue();
        } catch (NoSuchAlgorithmException e) {
        }
        throw new Exception("Cannot generate random number");
    }
}

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