Collections in Java

What is Collections Framework in Java? In Java collection is an object that represents a group of objects (such as the classic Vector class). A Collections framework is a unified architecture for representing and manipulating collections, enabling collections to be manipulated independently of implementation details. What is Collection Interface? The […]

Arraylist in Java

ArrayList class is based on the List Interface in java which is based on array data structure. ArrayList is widely used for its functionality and flexibility it offers. ArrayLists are resizeable list of array implementations of list interface. It implements all optional list operations and permits all elements incuding null. […]

[Python] Check if File Exists

How to check if a file exists in path using Python? There are 2 functions available in Python to check this directly using os.path. Try the below Python code snippet. Both functions take same parameter (file path) & return a boolean response. i.e., True if file exists or False if […]