How can I generate a random number without use of Math.Random?

Question

My project entails that I create a basic number guessing game that uses the JOptionPane and does not use Math.Random to create the random value. How would you go about doing this? I've completed everything except the random number generator. Thanks!

Answer 1

If you don't like the Math.Random you can make your own Random object.

import:

import java.util.Random;

code:

Random rand = new Random();
int value = rand.nextInt();

If you need other types instead of int, Random will provide methods for boolean, double, float, long, byte.

Answer 2

In JavaScript using the Middle-square method.

var _seed = 1234;
function middleSquare(seed){
    _seed = (seed)?seed:_seed;
    var sq = (_seed * _seed) + '';
    _seed = parseInt(sq.substring(0,4));
    return parseFloat('0.' + _seed);
}