collections – thisPointer

Java: How to get all keys by a value in HashMap ? | Search by Value in Map

In this article we will discuss how to search into a Map by value and fetch associated keys to the given value.

In this article we will discuss different ways to update the value of an existing key in HashMap in Java.

In this article we will discuss how to create a HashMap with multiple values associated with same Key in Java.

In this article we will discuss different ways to remove elements from HashMap while Iterating.

In this Article we will discuss how to initialize a HashSet using a Array or a Collection.

In this article we will discuss how to convert a HashSet in to an array.

In this article we will discuss how to merge two HashSets.

In this article we will discuss how to merge an array in a HashSet

In this article we will discuss how to search for an element in HashSet.

In this article we will discuss how to Iterate over a HashSet in Java using HashSet.