Find the maximum/minimum value in an array of primary types in Java

Writing a function that finds the maximum/minimum value of an array is a bit tedious, as follows::

/**
 * 
 * * @param chars
 * Maximum value in @returnchar array
 */
private static int maxValue(char[] chars) {
    int max = chars[0];
    for (int ktr = 0; ktr < chars.length; ktr++) {
        if (chars[ktr] > max) {
            max = chars[ktr];
        }
    }
    return max;
}

Is there a function already defined?

frameworks algorithm java array

2022-09-22 08:13

1 Answers

Use Commons.Lang and Collection for finding maximum/minimum values.

import java.util.Arrays;
import java.util.Collections;

import org.apache.commons.lang.ArrayUtils;

public class MinMaxValue {

    public static void main(String[] args) {
        char[] a = {'3', '5', '1', '4', '2'};

        List b = Arrays.asList(ArrayUtils.toObject(a));

        System.out.println(Collections.min(b));
        System.out.println(Collections.max(b));
   }
}

Because Arrays.asList() is inherently enclosing an array, there is no memory burden and does not make a copy of the elements in the array.

2022-09-22 08:13

If you have any answers or tips

Popular Tags

python x 4647

android x 1593

java x 1494

javascript x 1427

c x 927

c++ x 878

ruby-on-rails x 696

php x 692

python3 x 685

html x 656