Question

How to create HashSet in Java

Answer 1

import java.util.HashSet;
import java.util.Iterator;

public class MyClass {
    public static void main(String args[]) {
        HashSet<String> hset = new HashSet<>();
         
        hset.add("java");
        hset.add("c");
        hset.add("c++");
        hset.add("c#");
        hset.add("python");
        
        System.out.println(hset);
           
        Iterator<String> s = hset.iterator();  
        while(s.hasNext()) {  
           System.out.println(s.next());  
        }
    }
}



 
/*
run:
    
[c#, c++, python, java, c]
c#
c++
python
java
c
  
*/

 

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