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In this article, we will learn about creating a vertical progress bar using JProgressBar.VERTICAL in Java. Progress bars are essential for tracking task completion in GUI applications, and a vertical orientation can add a unique touch to your design. What is a Progress Bar in Java Swing? A progress bar is a visual component in Java Swing that indicates the progress of a task. It can be horizontal or vertical, depending on the application's design requirements. Java Swing provides the JProgressBar class to create and manage progress bars efficiently. Features of a Vertical Progress Bar The following are features of ... Read More
You can compare two strings using either the equals() method or the compareTo() method. Where, The equals() method compares this string to the specified object. The compareTo() method compares two strings lexicographically. The comparison is based on the Unicode value of each character in the strings. These two methods compare the given strings with respective to Case i.e. String with the different case are treated differently. Example The following example demonstrates the comparison of two strings using the equals() method − public class Sample{ public static void ... Read More
User has to enter number of names, and those names are required to be sorted in alphabetical order with the help of strcpy() function. An array of characters (or) collection of characters is called a string. Declaration Following is the declaration for an array − char stringname [size]; For example, char string[50]; string of length 50 characters. Initialization Using single character constant char string[10] = { ‘H’, ‘e’, ‘l’, ‘l’, ‘o’ ,‘\0’} Using string constants char string[10] = "Hello":; Accessing There is a control string "%s" used for ... Read More
In this article, we will understand how to display prime numbers between intervals using a function in Java. We will be using two approaches: one with user input and the other with predefined input. Prime numbers The prime numbers are special numbers that have only two factors 1 and itself and cannot be divided by any other number. A number is a prime number if its only factors are 1 and itself. 11 is a prime number. Its factors are 1 and 11 itself. Some examples of prime numbers are 2, 3, 5, 7, 11, 13, and so on. 2 is ... Read More
The JTable component in Java Swing is widely used for displaying and managing tabular data. Adding a new row dynamically to a JTable can enhance user interactivity, especially in applications that require real-time data manipulation. In this article we will tell you a step-by-step procedure, to use the insertRow() method to add a new row to a JTable, complete with a sample implementation and an algorithm. What is JTable in Java Swing? JTable is a Swing component used for displaying and editing tabular data. It is highly customizable and supports features like sorting, selection, and dynamic data manipulation, making it ... Read More
In this article, we will learn two approaches to check if a number is pandigital using JavaScript. Pandigital numbers are fascinating because they include each digit at least once within a specific range. Checking if a number is pandigital can be a common problem in programming challenges or number theory explorations. What is a Pandigital Number? A Pandigital number is a number that includes all the digits within a specific range at least once. For example − A 0-9 pandigital number contains each digit from 0 to 9 at least once, regardless of order. ... Read More
In JavaScript, there are scenarios where we need to reverse the mapping of keys and values in an object, creating a new object where the original values become keys, and the keys become their corresponding values. For example, cities can be grouped by their states. In this article, we’ll learn two approaches to achieve this: using Object.keys with iteration and reduce. Iterating with Object.keys() The first approach involves iterating over the keys of the original object using Object.keys() of Object properties and populating a new object. If multiple keys in the original object share the same value, they are grouped into ... Read More
These days, the risks to online privacy and security are numerous. Considering we use our phones for most of our daily interactions and transactions, getting an extra layer of protection is worth it. Without added security, it only takes a single lapse for criminals to access the logins of your financial apps or prominent social media accounts. They could get into your phone and download your camera roll images for ransom. When you're on public WiFi, the risks increase. Cybercriminals exploit vulnerabilities in wireless hotspots. For all these dilemmas, only a VPN can provide a comprehensive solution. It keeps your ... Read More
What is a Vector in C++?A vector is a dynamic array as the size of the vector changes during the program's execution. If we insert more elements in the vector it expands its size and if we remove elements from the vector it shrinks in size. A vector is part of the Standard Template Library (STL). Problem DescriptionIn this problem, we are given a vector and have to insert an element at a certain position. In this article, we are going to learn how to insert multiple positions in a vector in C++ using different approaches. Below are some examples to ... Read More
In Java, the left-justifying output means aligning text or data to the left within a specified width, with extra spaces on the right to fill the remaining space. It is commonly used when displaying tabular data or formatting strings. Left justification can be obtained using methods such as String.format() or printf(), which allow you to specify the width of the output field and the alignment of the content. Including a minus sign after the %, makes it left justified. Note − By default, output is right justified To display the Left justify output in Java is quite easy. Let us learn the following methods: ... Read More