Online Java Compiler By
JavaTpoint.com
import java.util.*; import java.util.concurrent.*; public class ConcurrentHashMapKeySetExample1 { 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++"); // print statement. System.out.println(" Map : " + conmap); System.out.println("keySet : " + conmap.keySet()); } }
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