Java List IndexOf indexOf(int hash, List list)

Description

Gets the index of the item occurrence matching the specified hashcode.

License

Apache License

Parameter

Parameter	Description
list	the List
hash	the hashcode to match

Return

the index of the item matching the hashcode or -1 if not found

Declaration

public static synchronized int indexOf(int hash, List<?> list) 

Method Source Code

//package com.java2s;
/*//  w ww . j  a  va  2 s  . c  om
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 {
    /**
     * Gets the index of the item occurrence matching the specified hashcode.
     * @param list the {@link List}
     * @param hash the hashcode to match
     * @return the index of the item matching the hashcode or -1 if not found
     */
    public static synchronized int indexOf(int hash, List<?> list) {
        Iterator<?> iterator = list.iterator();

        for (int i = 0; iterator.hasNext(); i++) {
            if (iterator.next().hashCode() == hash) {
                return i;
            }
        }

        return -1;
    }
}

Related

1. indexOf(final String regex, final List list)
2. indexOf(int start, List datas, T target)
3. indexOf(List list, Object element, int begin, int end)
4. indexOf(List data, List token)
5. indexOf(List source, List target)