Return the first item from choices that is contained in the list . - Android java.util

Android examples for java.util:List Element

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Description

Return the first item from choices that is contained in the list .

Demo Code

/*//from  w ww  .java2s. c o  m
 * Copyright (C) 2014 The Android Open Source Project
 *
 * 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.
 */
//package com.java2s;
import java.util.List;

public class Main {
    /**
     * Return the first item from {@code choices} that is contained in the {@code list}.
     *
     * <p>Choices with an index closer to 0 get higher priority. If none of the {@code choices}
     * are in the {@code list}, then {@code null} is returned.
     *
     * @param list a list of objects which may or may not contain one or more of the choices
     * @param choices an array of objects which should be used to select an item from
     *
     * @return the first item from {@code choices} contained in {@code list}, otherwise {@code null}
     */
    public static <T> T listSelectFirstFrom(List<T> list, T[] choices) {
        if (list == null) {
            return null;
        }

        for (T choice : choices) {
            if (list.contains(choice)) {
                return choice;
            }
        }

        return null;
    }
}

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