/** *@author:kingsley *@description:Hashtable Example program for ContainsKey */ import java.util.Hashtable; class HashTableExam { public static void main ( String[] args ) { Hashtable ht=new Hashtable(); // creating hashtable object ht.put(1, "kings"); // ht.put(key,"value") ht.put(2, "manee"); ht.put(3, "sathish"); // adding hashtable with keys ht.put(4, "kings"); System.out.println("Hash table contains key number '4' :" + ht.containsKey(4) ); // Using hashtable containsKey() method; } }
Output:
Hash table contains key number ‘4’ : true