Generic method

package taoshiflex.lab9;

import java.util.ArrayList;

public class Lab9 {
    public static void main(String[] args) {

        // Example usage
        ArrayList<Integer> list = new ArrayList<>();
        list.add(1);
        list.add(3);
        list.add(5);
        list.add(2);
        list.add(4);
        list.add(6);

        System.out.println("Maximum Element in Range: " + maxInRange(list, 1, 5));
    }

    // Generic method to find the maximal element in a range
    public static <E extends Comparable<E>> E maxInRange(ArrayList<E> list, int begin, int end) {
        if (list == null || list.size() == 0 || begin < 0 || end > list.size() || begin >= end) {
            return null;  // Return null for invalid input
        }
        E maxElement = list.get(begin);  // Assume the first element in the range is the largest
        for (int i = begin + 1; i < end; i++) {
            if (list.get(i).compareTo(maxElement) > 0) {
                maxElement = list.get(i);  // Update maxElement if a larger one is found
            }
        }
        return maxElement;
    }
}