How to Get Max Value from ArrayList in Java

by vigneshchennai74 Updated: Feb 2, 2023

Guide Kit

A List allows you to store a collection of elements in a specific order and provides various methods for inserting, deleting, and accessing elements in the list. You can also perform various operations on the list, such as searching for an element, sorting the elements, and iterating through the elements. 

To get the maximum value from a list in Java, you can use the "Collections.max" method from the "java.util.Collections" class. This method takes a List as an argument and returns the maximum element according to the natural ordering of the elements. 

Collections.max: The Collections.max method takes a Collection as an argument and returns the maximum element according to the natural ordering of the elements. The natural ordering of the elements is determined by the “compareTo” method of the elements, which must be implemented by the elements if they are to be used with this method. 
java.util.Collections: java.util.Collections is a utility class that provides various static methods for operating on collections. The “Collections” class provides a variety of utility methods for working with collections, including methods for sorting, searching, shuffling, and synchronizing.

For more information about getting max values from the list in Java, refer to the code given below.

Preview of the output that you will get on running this code from your IDE

Code

In this solution we use the List function of the java

How to find ALL maximum values in a List in Java?

JavaLines of Code : 20License : Strong Copyleft (CC BY-SA 4.0)

List<Integer> numbers = new ArrayList<Integer>();
    numbers.add(5);
    numbers.add(9);
    numbers.add(50);
    numbers.add(12);
    numbers.add(50);
    int max = Integer.MIN_VALUE;
    int count = 1;
    for(int number : numbers){
        if(number > max){
            max = number;
            count = 1;
        } else if(number == max){
            count++;
        }
    }
    for(int i=0; i<count; i++){
        System.out.println(max);
    }

Copy the code using the "Copy" button above, and paste it in your java IDE.
Write your own package name ,class and main method..
Run the file to get the maximum values in the list.

I found this code snippet by searching for "Get Max Value from List in Java" in kandi. You can try any such use case!

Environment Tested

I tested this solution in the following versions. Be mindful of changes when working with other versions

The solution is created and executed in java version "1.8.0_251"

Using this solution, we are able to find the maximum number in the list in java This process also facilities an easy way to use, hassle-free method to create a hands-on working version of code which would help us to maximum number in java.

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