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In this article, we will learn to deselect all cells in a JTable in Java. The JTable component is a powerful tool for displaying tabular data when working with Java Swing applications. Sometimes, you may want to deselect all selected cells in a JTable programmatically. Why Deselecting Cells in JTable is Important In certain scenarios, such as resetting form fields, implementing "Clear Selection" buttons, or preparing the table for a fresh data display, you need to clear the selection in a JTable. This improves user experience and ensures the application behaves as expected. Deselecting All Cells in JTable Following are the ... Read More
In this article, we will learn the Collectors.toCollection() method in Java, an essential tool for collecting elements into a specific type of collection, such as a List, Set, or any other collection type. Java 8 introduced a new, powerful feature called Streams, which enables functional-style programming to process sequences of elements. One of the key utilities in the Streams API is the Collectors class. What is the Collectors.toCollection() Method? The Collectors.toCollection() method is a static method in the Collectors class that allows you to collect elements from a stream into a custom collection. public static Collector toCollection(Supplier collectionFactory) Here ... Read More
In this article, we will learn to convert the first character to uppercase in a sentence in Java, converting the first character of each word or sentence to uppercase is a common text manipulation task. It ensures proper formatting, which is particularly useful in text processing, string parsing, and user interface applications. Approaches to convert first character uppercase in a sentence Following are the two approaches to converting the first character of a sentence to uppercase − Using String Manipulation and Character Methods Using Regular Expressions with the Matcher() Method Using ... Read More
A read-only map in Java is a type of Map that cannot be modified after it has been created. This means that once the map has been set to be read-only, we cannot add, remove, or update any of the key-value pairs.Converting a Map to a read only map We can convert a mutable map to an immutable map, a read-only map using the Collections.unmodifiableMap() method. This method provides a way to make sure that the map cannot be modified once it has been wrapped in this method. Following are the steps to convert a Map to a read-only map ... Read More
Problem Description We are given the three sides of a triangle, and we have to calculate the area of the triangle using Heron's formula. In this article, we are going to discuss how we can calculate the area of a triangle using Heron's Formula in C++. Heron's Formula The formula for calculating the semi-perimeter of the triangle is: s = (a + b + c) / 2 Then, apply Heron's formula to calculate the area of the triangle. Heron's formula for calculating the area of the triangle is: Area = √ s * (s - a) * (s - ... Read More
The userspace is the area or space where all the applications executed by the user are located, such as the terminal, web browser, text editor, etc. In simple terms, the userspace is an area with resources for user processes to run. This space has limited access to the hardware, a separate memory, and user privileges. It has its own components, such as: Shell − The command-line interface. User Libraries − Provide the interface for system calls. Daemons − Background processes. Utilities and Tools − Tools like grep and vim, which run inside the userspace. Applications running in the ... Read More
Bash script is a language that has multiple functionalities and capabilities, and as a programmer, keeping track of and remembering all the language syntax, especially if it's not your day-to-day language, is hard. For this purpose, we use comments, which allow us to simplify and demonstrate what a part of the code does. Writing comments is not necessary or obligatory, but it's a good practice, and here's why we use comments in code − Remember the code − Sometimes you write code and forget it for some time. When you come back, you might not remember why you wrote ... Read More
WordPress is the leading content management system in the world. It's free, open source, and easy to use. It is based on the popular backend language PHP. According to statistics, WordPress powers almost 60% of web applications worldwide. This is because it offers many features and capabilities that every website owner needs. Let's understand why WordPress is popular − Usage − WordPress is easy to set up and use. Even a person without an IT background can set up and use WordPress effectively. It comes with a simple interface to manage content, pages, and users. ... Read More
TeamViewer is a popular software for remote access to computers. It allows you to access another machine using an ID and a password. It is generally used for troubleshooting and fixing problems. TeamViewer is not the only software that offers remote access; there are other alternatives. However, TeamViewer is the most used one due to its capabilities and features. Here are some features TeamViewer offers to users − Cross-Platform − It can be installed on almost all operating systems, which is why it has many users across different platforms. File Sharing ... Read More
Redmine is one of the best free and open-source project management tools, written using Ruby on Rails. Its customizable nature makes it an excellent choice for managing and tracking bugs in projects. The term "project management" refers to a broad process with different stages and phases, ranging from planning and organizing to executing. Having a system to track all this can bring significant improvements. Redmine has many features that make it popular and distinct from other project management tools. In addition to being free and open-source, Redmine offers functionalities such as − Issue Tracking − ... Read More