Java Hash Code Calculate hashCode(final long l)

Description

hash Code

License

Apache License

Declaration

public static int hashCode(final long l) 

Method Source Code

//package com.java2s;
/*/*  w ww.j  a  va  2 s  .c o m*/
 * @(#)$Id$$
 *
 * Copyright 2006-2008 Makoto YUI
 *
 * 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.
 * 
 * Contributors:
 *     Makoto YUI - initial implementation
 */

public class Main {
    public static int hashCode(final long l) {
        return (int) (l ^ (l >>> 32));
    }

    public static int hashCode(final char[] ch, final int offset, final int length) {
        if (ch == null) {
            return 0;
        }
        int result = 1;
        final int limit = offset + length;
        for (int i = offset; i < limit; i++) {
            result = 31 * result + ch[i];
        }
        return result;
    }

    public static int hashCode(final byte[] b) {
        return hashCode(b, 0, b.length);
    }

    public static int hashCode(final byte[] b, final int offset, final int length) {
        if (b == null) {
            return 0;
        }
        int result = 1;
        final int limit = offset + length;
        for (int i = offset; i < limit; i++) {
            result = 31 * result + b[i];
        }
        return result;
    }
}

Related

1. hashCode(final int i)
2. hashCode(final int seed, final int hashcode)
3. hashCode(final int x, final int y)
4. hashcode(final int[] array)
5. hashCode(final long l)
6. hashCode(final long v)
7. hashCode(final Object obj)
8. hashCode(final Object obj)
9. hashCode(final Object object)