A Queue is a linear data structure, following a particular order FIFO (First In First Out) where we can insert elements at one end and remove elements in the other end just like a human queue from the supermarket or railways ticket booking counters. In the previous article, we saw […]
Garbage Collection in Java
December 22, 2024
Garbage Collection in Java Garbage Collection means and as the name implies freeing up of space by the waste objects or garbage to avoid memory leaks. Since objects are dynamically allocated by using the new keyword how these objects are destroyed and their memory is released for reallocation. Some languages […]
Queues Interface in Java
December 22, 2024
Queue Interface: The Queue Interface in Java Collections provide functionality as a Queue in the real-life, it extends the collections interface. It represents real-world queues where people queue in waiting line in front of the Supermarket where new people add up at the end of the line (queue) and the […]
LinkedList in Java
December 22, 2024
Similar to Arrays in java Linked List is also a Linear data structure. In Linked List unlike arrays elements are not stored in a contiguous locations and they are linked to each other using references(pointers in memory), in Linked List each element has a reference pointing it to the next […]
Maximum Subarray Problem ( Kadane’s Algorithm) Dynamic Programming
December 22, 2024
Maximum SubArray Sum is the problem of finding the sum of contiguous subarray elements with in an array of numbers form arr[1…n] You might ask what is a subarray? SubArray is basically array within an array is called a sub array, as shown below 4, -1, 2 is the subarray […]
Two Pointer technique in Java
December 22, 2024
What is Two pointer technique? A two pointer technique is a technique where given a sorted array we have two starting points or two points of consideration as they both move towards the middle of the array being iterated over, the two pointer technique is a useful tool to utilize […]
Collections in Java
December 22, 2024
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
December 22, 2024
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. […]
Regular Expressions – I
December 22, 2024
A regular expression (shortened as regex) is an extremely useful way of matching common patterns and texts such as emails, phone numbers, URLs etc. almost all programming languages have a regular expressions library. It is widely used in text editors also to find patterns and replace string patterns that we specify in the […]
[WordPress] Display HTML Tags inside Pre
December 22, 2024
Display HTML Code in WordPress Post In WordPress posts if we write any HTML codes in Text editor, the code will not be displayed. Instead of code, WordPress, sends the HTML code as it is. The web browser compiles the code to display its output. Hence the code will not […]