java set contains
// Java code to illustrate Set.contains() method import java.io.*; import java.util.*; public class HashSetDemo { public static void main(String args[]) { // Creating an empty Set Set<String> set = new HashSet<String>(); // Using add() method to add elements into the Set set.add("Welcome"); set.add("To"); set.add("Geeks"); set.add("4"); set.add("Geeks"); // Displaying the Set System.out.println("Set: " + set); // Check for "Geeks" in the set System.out.println("Does the Set contains 'Geeks'? " + set.contains("Geeks")); // Check for "4" in the set System.out.println("Does the Set contains '4'? " + set.contains("4")); // Check if the Set contains "No" System.out.println("Does the Set contains 'No'? " + set.contains("No")); } }
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