find_min_max.java

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
 
public class GFG {
 

    public static Integer findMin(List<Integer> list)
    {

        if (list == null || list.size() == 0) {
            return Integer.MAX_VALUE;
        }
 

        List<Integer> sortedlist = new ArrayList<>(list);

        Collections.sort(sortedlist);

        return sortedlist.get(0);
    }

    public static Integer findMax(List<Integer> list)
    {

        if (list == null || list.size() == 0) {
            return Integer.MIN_VALUE;
        }

        List<Integer> sortedlist = new ArrayList<>(list);

        Collections.sort(sortedlist);

        return sortedlist.get(sortedlist.size() - 1);
    }
 
    public static void main(String[] args)
    {

        List<Integer> list = new ArrayList<>();

        list.add(44);
        list.add(11);
        list.add(22);
        list.add(33);

        System.out.println("Min: " + findMin(list));
        System.out.println("Max: " + findMax(list));
    }
}