Java List Hash hashCode(List list)

Description

hash Code

License

Apache License

Declaration

public static int hashCode(List list) 

Method Source Code

//package com.java2s;
/**/*from  w  ww . j a v a 2  s.  co  m*/
 * Copyright 2010 JBoss 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.
 */

import java.util.Iterator;
import java.util.List;

public class Main {
    public static int hashCode(List list) {
        if (list == null) {
            return 0;
        }

        final int prime = 31;
        int result = 1;
        for (Iterator it = list.iterator(); it.hasNext();) {
            result = prime * result + it.next().hashCode();
        }
        return result;
    }
}

Related

1. hashCode(List list)
2. hashCodeForList(final Collection list)
3. hashContents(List l)