Example: FindLargestAndSmallestUsingStreams in Java

// FindLargestAndSmallestUsingStreams
import java.util.Arrays; // Required for Arrays.stream()
import java.util.OptionalInt; // Required for OptionalInt
import java.util.Scanner;

// Main class containing the entry point of the program
public class Main {
    public static void main(String[] args) {
        int[] numbers = {12, 5, 8, 20, 3, 15}; // Example array

        // Step 1: Convert the array to an IntStream
        // IntStream provides methods for processing primitive int values
        OptionalInt minOptional = Arrays.stream(numbers).min();
        OptionalInt maxOptional = Arrays.stream(numbers).max();

        // Step 2: Check if the array is not empty before getting values
        // min() and max() return OptionalInt to handle empty streams gracefully
        if (minOptional.isPresent() && maxOptional.isPresent()) {
            int min = minOptional.getAsInt();
            int max = maxOptional.getAsInt();

            // Step 3: Print the results
            System.out.println("Array elements: " + Arrays.toString(numbers));
            System.out.println("Largest element: " + max);
            System.out.println("Smallest element: " + min);
        } else {
            System.out.println("The array is empty. Cannot find min/max.");
        }
    }
}