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/* Remove value from Java Hashtable example This Java Example shows how to remove a key value pair from Hashtable object using remove method. */ import java.util.Enumeration; import java.util.Hashtable; public class RemoveValueFromHashtableExample { public static void main(String[] args) { //create Hashtable object Hashtable ht = new Hashtable(); //add key value pairs to Hashtable ht.put("1","One"); ht.put("2","Two"); ht.put("3","Three"); /* To remove a key value pair from Hashtable use Object remove(Object key) method of Hashtable class. It returns either the value mapped with the key or null if no value was mapped. */ Object obj = ht.remove("2"); System.out.println(obj + " Removed from Hashtable"); //print remaining Hashtable values Enumeration e = ht.elements(); //iterate through Hashtable values Enumeration while(e.hasMoreElements()) System.out.println(e.nextElement()); } } /* Output would be Two Removed from Hashtable Three One */ |
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