In this article, we will learn to rank elements in arrays using JavaScript. Ranking elements in an array is common in various applications, such as sorting scores, evaluating performance, or analyzing data. What is Array Ranking? Array ranking involves assigning a rank to each element of an array based on ... Read More

In this article, we will learn to check if the browser tab page is focused and under use or not in JavaScript. This is mainly required to record the user’s inactivity time on the app and then take any action upon it if required. Use Cases for Monitoring Browser Tab ... Read More

In this article, we will learn to reverse an array in Java. Reversing an array is a classic problem that helps understand essential concepts like data structures and in-place manipulation. This operation is commonly required in programming tasks, such as data transformations, algorithm implementations, and solving logical problems. Problem Statement ... Read More

In this article, we will learn to create an array from JSON data in JavaScript. JSON is a widely used format for storing and exchanging data. A common use case involves extracting specific data from a JSON object or array and converting it into a separate array for further processing. What is ... Read More

The ResultSet interface in Java is used to retrieve data from a database in a tabular form. The isAfterLast() method is one of the navigation methods in the ResultSet that helps in checking the position of the cursor. Specifically, isAfterLast() checks whether the cursor is positioned after the last row ... Read More

In this article, we will learn to implement Quicksort recursively in JavaScript. Quicksort is one of the most efficient and widely used sorting algorithms, known for its divide-and-conquer approach. What is Quicksort? Quicksort is a divide-and-conquer sorting algorithm that sorts an array by selecting a pivot element and partitioning ... Read More

In this article, we will learn to sort maps by keys in Java. In Java, the Map interface provides a collection of key-value pairs where each key is unique. Sorting a map by its keys can be useful when you want to order the elements based on the keys instead ... Read More

Adding rows dynamically to a JTable is a common task in Java Swing when working with user interfaces that involve tabular data. This article walks you through creating a Java Swing application that appends a new row to a JTable when the user inputs data and clicks a button. What ... Read More

In this article, we will learn that concurrency in Java allows multiple threads to execute simultaneously, sharing system resources efficiently. One of the methods provided in the Thread class for managing thread execution is the yield() method. What is the yield() Method? The yield() method is a static method of ... Read More

In this article, we will learn to initialize a list in Java. A list is an ordered collection that allows us to store and access elements sequentially. It contains index-based methods to insert, update, delete, and search the elements. It can also have duplicate elements. Problem Statement Given a scenario ... Read More