Category: hashset

In this post we will see different ways we can iterate through a map , HashMap and TreeMAp in Java.

In previous post we have learn java about java hashmap with example . In this article we will see how

To check Set/HashSet is empty or not we use isEmpty() method . HashSet isEmpty() method returns true if this set

In order to count number of element in Set/HashSet , use size() method. Set.size() method returns the number of elements

In this tutorial we will learn about java HashSet contains method . HashSet.contains() method is used to check given element

In this tutorial we will learn about hashset removeAll() method in Java. removeAll() method of HashSet class removes from this

We can remove all element from HashSet using clear() method . Clear () method of set removes all of the

In this tutorial we will learn about HashSet remove method in java .  Java HashSet remove method use to remove

In this tutorial we will learn about java Hashset addall() method . Hashset.addAll() method used to adds all of the