Java Array Index Of indexOfIdentical(Object[] array, Object value)

Description

Returns the index in array of the first occurrence identical to value , or -1 if array does not contain value .

License

Open Source License

Declaration

public static int indexOfIdentical(Object[] array, Object value) 

Method Source Code

//package com.java2s;
/*/*from www. j a  va 2 s . com*/
 * Copyright (c) 2017, APT Group, School of Computer Science,
 * The University of Manchester. All rights reserved.
 * Copyright (c) 2010, 2012, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 */

import java.util.*;

public class Main {
    /**
     * Returns the index in {@code list} of the first occurrence identical to {@code value}, or -1 if
     * {@code list} does not contain {@code value}. More formally, returns the lowest index
     * {@code i} such that {@code (list.get(i) == value)}, or -1 if there is no such index.
     */
    public static int indexOfIdentical(List list, Object value) {
        int i = 0;
        for (Object element : list) {
            if (element == value) {
                return i;
            }
            ++i;
        }
        return -1;
    }

    /**
     * Returns the index in {@code array} of the first occurrence identical to {@code value}, or -1 if
     * {@code array} does not contain {@code value}. More formally, returns the lowest index
     * {@code i} such that {@code (array[i] == value)}, or -1 if there is no such index.
     */
    public static int indexOfIdentical(Object[] array, Object value) {
        for (int i = 0; i < array.length; i++) {
            if (array[i] == value) {
                return i;
            }
        }
        return -1;
    }
}

Related

1. indexOf(int[] arr, int val)
2. indexOf(Object[] array, Object objectToFind)
3. indexOf(Object[] array, Object objectToFind)
4. indexOf(Object[] elements, Object value)
5. indexOfCS(String[] strings, String a)