Hashset Example in Java

Hashset Example in Java Collection Framework. This Java Hashset example describes the basic operations performed on the Hashset in Collection Framework.

Hashset Example in Java Collection Framework. This Java Hashset example describes the basic operations performed on the Hashset in Collection Framework.

Program:

import java.util.*;
class HashSetDemo{
public static void main(String[] args) {
HashSet hs = new HashSet();
hs.add(“Hello”);
hs.add(“How are you”);
hs.add(“fine”);
System.out.println(“HashSet: “+hs);
hs.remove(“fine”);
System.out.print(“\n HashSet after removing : “+ hs);
hs.add(“Not Bad”);
System.out.print(“\n HashSet after adding : “+ hs);
Iterator it = hs.iterator();
System.out.print(“\n HashSet-element: \n”);
while(it.hasNext())
System.out.println(” “+it.next());
}
}

Result:

HashSet: [fine, How are you, Hello]
HashSet after removing : [How are you, Hello]
HashSet after adding : [How are you, Hello, Not Bad]
HashSet-element:
How are you
Hello
Not Bad