Java Hash Calculate hash(int aSeed, boolean aBoolean)

Description

booleans.

License

Open Source License

Parameter

Parameter	Description
aSeed	_more_
aBoolean	_more_

Return

_more_

Declaration

public static int hash(int aSeed, boolean aBoolean) 

Method Source Code

//package com.java2s;
/*//from   www . ja  va 2s .  c o  m
 * $Id: HashCodeUtils.java,v 1.3 2006/05/05 19:19:34 jeffmc Exp $
 *
 * Copyright  1997-2016 Unidata Program Center/University Corporation for
 * Atmospheric Research, P.O. Box 3000, Boulder, CO 80307,
 * support@unidata.ucar.edu.
 *
 * This library is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation; either version 2.1 of the License, or (at
 * your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser
 * General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this library; if not, write to the Free Software Foundation,
 * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */

public class Main {
    /** _more_ */
    private static final int fODD_PRIME_NUMBER = 37;

    /**
     * booleans.
     *
     * @param aSeed _more_
     * @param aBoolean _more_
     *
     * @return _more_
     */
    public static int hash(int aSeed, boolean aBoolean) {
        return firstTerm(aSeed) + (aBoolean ? 1 : 0);
    }

    /**
     * chars.
     *
     * @param aSeed _more_
     * @param aChar _more_
     *
     * @return _more_
     */
    public static int hash(int aSeed, char aChar) {
        return firstTerm(aSeed) + (int) aChar;
    }

    /**
     * ints.
     *
     * @param aSeed _more_
     * @param aInt _more_
     *
     * @return _more_
     */
    public static int hash(int aSeed, int aInt) {
        /*
        * Implementation Note
        * Note that byte and short are handled by this method, through
        * implicit conversion.
        */
        return firstTerm(aSeed) + aInt;
    }

    /**
     * longs.
     *
     * @param aSeed _more_
     * @param aLong _more_
     *
     * @return _more_
     */
    public static int hash(int aSeed, long aLong) {
        return firstTerm(aSeed) + (int) (aLong ^ (aLong >>> 32));
    }

    /**
     * floats.
     *
     * @param aSeed _more_
     * @param aFloat _more_
     *
     * @return _more_
     */
    public static int hash(int aSeed, float aFloat) {
        return hash(aSeed, Float.floatToIntBits(aFloat));
    }

    /**
     * doubles.
     *
     * @param aSeed _more_
     * @param aDouble _more_
     *
     * @return _more_
     */
    public static int hash(int aSeed, double aDouble) {
        return hash(aSeed, Double.doubleToLongBits(aDouble));
    }

    /**
     * _more_
     *
     * @param aSeed _more_
     *
     * @return _more_
     */
    private static int firstTerm(int aSeed) {
        return fODD_PRIME_NUMBER * aSeed;
    }
}

Related

1. hash(final int value)
2. hash(final Object key, final Object value)
3. hash(final Object object)
4. hash(final Object[] objects)
5. hash(finalObject object)
6. hash(int aSeed, Object[] aArray)
7. hash(int base, boolean field)
8. hash(int h)
9. hash(int h)