Check if a particular element exists in Java LinkedHashSet Example

1.Basic java example program to check particular element is exists in linkedhashset

• boolean contains(Object o)   This method Returns true if this set contains the specified element

1. package com.checkelementhashset;
2.  
3. import java.util.LinkedHashSet;
4. import java.util.Iterator;
5.  
6. public class LinkedHashsetExample{
7.  
8. public static void main(String[] args) {
9.   
10. LinkedHashSet<String> linkedhashset = new LinkedHashSet<>();
11.        
12.         linkedhashset.add("Java Interview Questions");
13.         linkedhashset.add("Java interview program");
14.         linkedhashset.add("Concept and example program");
15.         linkedhashset.add("Concept and interview questions");
16.         linkedhashset.add("Java Quiz");
17.     
18.  /*
19.  To check whether a particular value exists in LinkedHashSet we need to use
20.   boolean contains(Object value) method of HashSet class.
21.  this method returns true if the LinkedHashSet contains the value, otherwise returns false.
22.  */
23.        
24.         boolean isExists = linkedhashset.contains("Java Quiz");
25.         System.out.println("Java Quiz exists in LinkedHashSet? : " + isExists);    
26.  
27. 
    
28.  
29. Iterator it=linkedhashset.iterator();
30.              
31. while(it.hasNext()){
32. System.out.println(it.next());
33.                      
34. }   
35.  
36. }
37.  
38. }
     

Output:

1. Java Quiz exists in LinkedHashSet ? : true
2. Java Interview Questions
3. Java interview program
4. Concept and example program
5. Concept and interview questions
6. Java Quiz