Java Hash Code Calculate hashCode(Object... toHash)

Description

shortcut for hashing some stuff.

License

Apache License

Parameter

Parameter	Description
toHash	objects to hash, null objects will be skipped entirely

Declaration

public static int hashCode(Object... toHash) 

Method Source Code

//package com.java2s;
/*//from  www . j av a2  s .  c  o m
 * Copyright (C) 2013 salesforce.com, 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.
 */

public class Main {
    /**
     * shortcut for hashing some stuff.
     * 
     * @param toHash objects to hash, null objects will be skipped entirely
     */
    public static int hashCode(Object... toHash) {
        int hash = 7;
        for (Object o : toHash) {
            if (o != null) {
                hash = 31 * hash + o.hashCode();
            }
        }
        return hash;
    }
}

Related

1. hashcode(Object... as)
2. hashCode(Object... fields)
3. hashCode(Object... objects)
4. hashCode(Object... objects)
5. hashCode(Object... objs)
6. hashCode(Object[] array)
7. hashCode(Object[] thisFields)
8. hashcode_old(final int[] array)
9. hashCodeEps(double value)