DataUtils.java

// Distributed Decision making system framework 
// Copyright (c) 2014, Jordi Coll Corbilla
// All rights reserved.
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package ddm.utils;

import java.util.Random;

/**
 * 
 * @author jordi Corbilla
 * DataUtils class to get a random number according to a range.
 * This is used for the classifier when choosing the percentage of data to use.
 */
public class DataUtils {

	public static int RandomNumber(int minRange, int maxRange) {
		Random randomGenerator = new Random();
		// get the range, casting to long to avoid overflow problems
		long range = (long) maxRange - (long) minRange + 1;
		// compute a fraction of the range, 0 <= fraction < range
		long fraction = (long) (range * randomGenerator.nextDouble());
		return (int) (fraction + minRange);
	}
}