Remove key value pair from hashtable java example

Hashtable java Collections interview Questions

1.Basic java example program to iterate keys of hashtable

• Object remove(Object key)    This method used to remove value pair from hashtable

1. package com.removevalueHashtable;
2.  
3. import java.util.Hashtable;
4. 
   
5. import java.util.Enumeration;
6.  
7. public class HashtableExample{
8.  
9. public static void main(String[] args) {
10.   
11.  //create Hashtable object
12.        Hashtable<String,String> hashtable = new Hashtable<String,String>();
13.        
14. //add key value pairs to Hashtable
15. hashtable.put("1","Java Interview Questions");
16. hashtable.put("2","Java Interview Programs");
17. hashtable.put("3","Concept and example program");
18. hashtable.put("4","Concept and interview Questions");
19. hashtable.put("5","Java Quiz");
20. hashtable.put("6","Real time examples");
21.  
22. Object obj = ht.remove("2");
23. System.out.println(obj + " Removed from Hashtable");
24.  
25. Enumeration e=hashtable.elements();
26.           
27.  
28.            
29. // display search result
30.  while (e.hasMoreElements()) {
31.         System.out.println(e.nextElement());
32. }    
33. 
    
34. }
35.  
36. }
     

Output:

1. Java Interview Programs Removed from Hashtable
2. Real time examples
3. Java Quiz
4. Concept and interview Questions
5. Concept and exampe program
6. Java Interview Questions

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Remove key value pair from hashtable java example

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