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What is NumberUtils.max in Java?

abhilash

Grokking Modern System Design Interview for Engineers & Managers

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max() is a staticthe methods in Java that can be called without creating an object of the class method of the NumberUtils class that is used to find the maximum value among three values or in an array of values. The method is overloaded to support all the primitive types.

How to import NumberUtils

The definition of NumberUtils can be found in the Apache Commons Lang package, which we can add to the Maven project by adding the following dependency to the pom.xml file:


<dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-lang3</artifactId>
            <version>3.12.0</version>
</dependency>

For other versions of the commons-lang package, refer to the Maven Repository.

You can import the NumberUtils class as follows:


import org.apache.commons.lang3.math.NumberUtils;

Syntax


public static int max(final int... array)

Parameters

  • final int... array: The list of values.

Return value

This method returns the maximum value in the list of values.

Overloaded methods

public static int max(int a, final int b, final int c)

Code

import org.apache.commons.lang3.math.NumberUtils;
import java.util.Arrays;
public class Main{
public static void main(String[] args) {
int[] values = new int[]{3, 4, 2, 13, 2, 5434, 232, 43233};
System.out.printf("NumberUtils.max(%s) = %s", Arrays.toString(values), NumberUtils.max(values));
System.out.println();
int a = 13;
int b = 45;
int c = 4;
System.out.printf("NumberUtils.max(%s, %s, %s) = %s", a, b, c, NumberUtils.max(a, b, c));
}
}

Example 1

  • values = 3, 4, 2, 13, 2, 5434, 232, 43233]

The method returns 43233 because it is the maximum value in the list of values.

Example 2

  • a = 13
  • b = 45
  • c = 4

The method returns 45 as it is the maximum value among the three values passed to the method.

Output

The output of the code will be as follows:


NumberUtils.max([3, 4, 2, 13, 2, 5434, 232, 43233]) = 43233
NumberUtils.max(13, 45, 4) = 45

RELATED TAGS

java
communitycreator
maximum

Grokking Modern System Design Interview for Engineers & Managers

Ace your System Design Interview and take your career to the next level. Learn to handle the design of applications like Netflix, Quora, Facebook, Uber, and many more in a 45-min interview. Learn the RESHADED framework for architecting web-scale applications by determining requirements, constraints, and assumptions before diving into a step-by-step design process.

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