Java Collection Tutorial - Java HashSet.remove(Object o)

• Back to HashSet  ↑

Syntax

HashSet.remove(Object o) has the following syntax.

public boolean remove(Object o)

Example

In the following code shows how to use HashSet.remove(Object o) method.

//from   w  w w .  j a va2 s .  c o  m


import java.util.HashSet;

public class Main {
   public static void main(String args[]) {
      HashSet<String>  newset = new HashSet <String> ();
                  
      newset.add("Learning"); 
      newset.add("from");
      newset.add("java2s.com");   
      
      System.out.println("Values before remove: "+newset);
      
      // remove "Easy" from set
      boolean isremoved = newset.remove("from"); 
      
      System.out.println("Return value after remove: "+isremoved); 
      
      System.out.println("Values after remove: "+newset);     
   }    
}

The code above generates the following result.

• Back to HashSet  ↑