Android Collection Element Get getLastIndex(final Collection collection)

Description

Calculates the index of the last entry in the collection.

License

Open Source License

Return

the last entry index.

Declaration

public static int getLastIndex(final Collection<?> collection) 

Method Source Code

//package com.java2s;
/*// ww  w .  j a  v a2  s .  co m
 * Copyright (C) 2013 nohana, Inc. All rights reserved.
 *
 * 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.Collection;

public class Main {
    /**
     * Calculates the index of the last entry in the collection.
     * @return the last entry index.
     */
    public static int getLastIndex(final Collection<?> collection) {
        if (isEmpty(collection)) {
            return 0;
        }
        return collection.size() - 1;
    }

    public static boolean isEmpty(final Collection<?> collection) {
        if (collection == null) {
            return true;
        }
        return collection.isEmpty();
    }
}

Related

1. findCommonElementType(Collection collection)
2. getFirst(Collection collection)