Online Java Compiler By
JavaTpoint.com
import java.util.concurrent.*; import java.util.*; public class ConcurrentHashMapcontainsExample2 { public static void main(String[] args) { ConcurrentHashMap
mapcon = new ConcurrentHashMap
(); mapcon.put("Delhi", 100); mapcon.put("Noida", 200); mapcon.put("Mumbai", 300); mapcon.put("Keral", 400); System.out.println(" Mappings are: " +mapcon); System.out.println("is c present? :: " + mapcon.contains(900)); //checks if map contains 900. } }
Output