Java Array Max Value findMaxIndex(int[] arr)

Description

find Max Index

License

Apache License

Declaration

public static int findMaxIndex(int[] arr) 

Method Source Code

//package com.java2s;
/**/*from  ww w  .j  a v a2s . c o  m*/
 * 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.
 */

public class Main {
    public static int findMaxIndex(int[] arr) {
        return findMaxIndex(arr, 0, arr.length);
    }

    public static int findMaxIndex(int[] arr, int offset, int length) {
        int maxIndex = -1;
        int maxValue = Integer.MIN_VALUE;
        int endIdx = offset + length;
        for (int i = offset; i < endIdx; i++) {
            if (arr[i] > maxValue) {
                maxValue = arr[i];
                maxIndex = i;
            }
        }
        return maxIndex;
    }

    public static int findMaxIndex(double[] arr) {
        return findMaxIndex(arr, 0, arr.length);
    }

    public static int findMaxIndex(double[] arr, int offset, int length) {
        int maxIndex = -1;
        double maxValue = Double.NEGATIVE_INFINITY;
        int endIdx = offset + length;
        for (int i = offset; i < endIdx; i++) {
            if (arr[i] > maxValue) {
                maxValue = arr[i];
                maxIndex = i;
            }
        }
        return maxIndex;
    }

    public static int findMaxIndex(float[] arr, int offset, int length) {
        int maxIndex = -1;
        float maxValue = Float.NEGATIVE_INFINITY;
        int endIdx = offset + length;
        for (int i = offset; i < endIdx; i++) {
            if (arr[i] > maxValue) {
                maxValue = arr[i];
                maxIndex = i;
            }
        }
        return maxIndex;
    }
}

Related

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4. findMaxIndex(final int[] array)
5. findMaxIndex(int[] a)
6. findMaxOverlap(final int[] overlapRange, final int[] outputRange, final int[] min, final int[] max)
7. findMaxValue(int[] array)
8. findMaxValueIndex(double[] d)
9. max(boolean useInt, int... value)