Java program for a generic function.

 Objective:  Write a java program to find the maximum value from the given type of elements using a generic function.

Code: 

import java.util.Arrays;

import java.util.Collections;

public class GenericMaxFinder {

    

    // Generic method to find the maximum element in an array

    public static <T extends Comparable<T>> T findMax(T[] elements) {

        if (elements == null || elements.length == 0) {

            throw new IllegalArgumentException("Array must not be null or empty");

        }

        return Collections.max(Arrays.asList(elements));

    }

    

    public static void main(String[] args) {

        // Example with Integer array

        Integer[] intArray = {3, 7, 2, 9, 5};

        System.out.println("Maximum Integer: " + findMax(intArray));

        

        // Example with Double array

        Double[] doubleArray = {4.5, 2.3, 9.8, 1.2};

        System.out.println("Maximum Double: " + findMax(doubleArray));

        

        // Example with String array

        String[] stringArray = {"apple", "orange", "banana", "mango"};

        System.out.println("Maximum String: " + findMax(stringArray));

    }

}

Output: