Java Set find the Max/Min value
import java.util.Collections; import java.util.HashSet; public class Main { public static void main(String[] args) { HashSet<Integer> hashSet = new HashSet<>(); hashSet.add(1);/*from ww w . j a va 2s . c o m*/ hashSet.add(2); hashSet.add(3); hashSet.add(4); hashSet.add(5); Integer obj = Collections.max(hashSet); System.out.println(obj); obj = Collections.min(hashSet); System.out.println(obj); } }