Java Array Normalize normalHashCode(char[] val)

Description

Private method that calculates the hash code for the char[] val according to the java spec.

License

Apache License

Declaration

public static final int normalHashCode(char[] val) 

Method Source Code

//package com.java2s;
/*// w w w.j  a v a  2s. c o  m
Copyright 1996-2008 Ariba, Inc.
    
Licensed 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
http://www.apache.org/licenses/LICENSE-2.0
    
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
    
$Id: //ariba/platform/util/core/ariba/util/core/MathUtil.java#11 $
*/

public class Main {
    /**
    Private method that calculates the hash code for the char[]
    <b>val</b> according to the java spec.
    */
    public static final int normalHashCode(char[] val) {
        int h = 0;
        int off = 0;
        int len = val.length;

        if (len < 16) {
            for (int i = len; i > 0; i--) {
                h = (h * 37) + val[off++];
            }
        } else {
            // only sample some characters
            int skip = len / 8;
            for (int i = len; i > 0; i -= skip, off += skip) {
                h = (h * 39) + val[off];
            }
        }
        return h;
    }
}

Related

1. norm_vec(double[] vec)
2. normal0(double[] p1, double[] p2, double[] p3)
3. normalCentralMoment(boolean[][] img, int p, int q)
4. normalDist(double[] features, double[] avg, double[][] cov)
5. normalForm(int[] a)
6. normalise(double[] a)
7. normalise(double[] A)
8. normalise(float[] array)
9. normaliseActions(double[] actions)