Online Java Compiler By
JavaTpoint.com
import java.util.*; import java.util.concurrent.*; public class ConcurrentHashMapmappingCountExample2 { public static void main(String[] args) { ConcurrentHashMap
conmap = new ConcurrentHashMap
(); conmap.put(10, "Java"); conmap.put(11, ".net"); conmap.put(20, "php"); conmap.put(12, "C"); conmap.put(30, "C++"); System.out.println(" Map : " + conmap); System.out.println("keySet : " + conmap.keySet()); System.out.println("Map Size : " + conmap.mappingCount()); } }
Output