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Commons Math example source code file (

This example Commons Math source code file ( is included in the "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Commons Math tags/keywords

jdkrandomgenerator, jdkrandomgenerator, random, random, randomgenerator, randomgenerator, util

The Commons Math source code

 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * See the License for the specific language governing permissions and
 * limitations under the License.
package org.apache.commons.math.random;

import java.util.Random;

 * Extension of <code>java.util.Random to implement
 * {@link RandomGenerator}.
 * @since 1.1
 * @version $Revision: 811685 $ $Date: 2009-09-05 13:36:48 -0400 (Sat, 05 Sep 2009) $
public class JDKRandomGenerator extends Random implements RandomGenerator {

    /** Serializable version identifier. */
    private static final long serialVersionUID = -7745277476784028798L;

    /** {@inheritDoc} */
    public void setSeed(int seed) {
        setSeed((long) seed);

    /** {@inheritDoc} */
    public void setSeed(int[] seed) {
        // the following number is the largest prime that fits in 32 bits (it is 2^32 - 5)
        final long prime = 4294967291l;

        long combined = 0l;
        for (int s : seed) {
            combined = combined * prime + s;


Other Commons Math examples (source code examples)

Here is a short list of links related to this Commons Math source code file:

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