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In this article, we will learn all the different approaches to remove the whitespaces from a standard string in C/C++. First of all, let's understand our problem statement. The input of this problem is a non-empty string containing multiple characters and whitespaces between those characters. Our task is to print the string by ignoring all the whitespaces into the output console. For example: // Input String "This is a string" // Output String "Thisisastring" Remove Whitespaces from a String in C++ Here is the list of approaches to remove all the whitespaces from a string using ... Read More
In this article, we will discuss all the approaches to parse a string delimited by comma using a C/C++ program. First of all, let's understand the problem statement. The input of this problem is a string containing multiple words that are seperated by commas. Our task is to print each word space seperated to the output console. For example: // Input String "Hello, World, From, 2025" // Output "Hello" "World" "From" "2025" Parse Comma Delimited String Here is the list of approaches to parse comma delimited string to words using c++ program, which we ... Read More
In Python, lists are a useful way to store multiple elements in a single variable. To assign values to each entry in a list, loops are often needed. This strategy simplifies the process and improves the clarity of your code. This chapter will look at how to assign values to variables in a list using different loop types, using basic examples. Using Simple Loop Iterations In this method, we use the for loop to append elements to the lists. When we do not enter any element into the list and stop appending, then we just press the Enter key. To ... Read More
A regular expression in Python is a group of characters that allows you to use a search pattern to find a string or set of strings. RegEx is a term for regular expressions. To work with regular expressions in Python, use the re package. Understanding String Matching in Python String matching is a basic Python method that allows you to look for and find patterns in a given text. The match() function, a component of the re (regular expression) package, is one of the widely used methods for this purpose. Use the match() method to determine whether the beginning of ... Read More
The Tutorialspoint coding environment normally helps you to run Python code directly in your browser, but the capacity to import external modules can be limited. Importing Python Module So you can use Python's built-in libraries and modules. To load a module into the Python IDE environment on tutorialspoint, follow the steps below - Step 1: First of all, you need to open the Tutorialspoint Python IDE. So, go to the Tutorialspoint Python IDE. ... Read More
In Java, a JTextField can be used for plain text, whereas a JFormattedTextField is a class that extends JTextField, and it can be used to set any format to the text that it contains, phone numbers, e-mails, dates, etc. JTextField A JTextField is one of the most important components that allows the user to type an input text value in a single-line format. A JTextField can also generate the MouseListener and KeyListener interfaces. Syntax The following is the syntax for a JTextField initialization: JTextField textField = new JTextField(20); // 20 columns wide A JTextField can generate an ActionListener interface ... Read More
In this article, we will learn to set a background color for JSplitPane in Java. JSplitPane is a Swing component that divides two (or more) components with a resizable divider. By default, JSplitPane does not directly support background color changes due to its complex structure. What is a JSplitPane? A JSplitPane is a subclass of the JComponent class that allows us to arrange two components side by side horizontally or vertically in a single pane. The display areas of both components can also be adjusted at runtime by the user. Syntax The following is the syntax for a JSplitPane initialization: JSplitPane ... Read More
No, Java Swing components are not thread-safe in Java. This means that whenever Swing components should be accessed or changed, it is done mostly by using a single thread, the EDT. Why Swing Components are not thread-safe One of the main reasons Java Swing is not thread-safe is to simplify the task of extending its components. Another reason for that Java Swing is not thread-safe due to the overhead involved in obtaining and releasing locks and restoring the state. Below are some methods given by Swing for safe operation with its UI: SwingUtilities.invokeLater(): In ... Read More
In Java, a JComboBox is a component that displays a drop-down list and gives users options that we can select one and only one item at a time whereas a JList shows multiple items (rows) to the user and also gives an option to let the user select multiple items. JComboBox A JComboBox can be editable or read-only. An ActionListener, ChangeListener, or ItemListener interface can be used to handle the user actions on a JComboBox. Syntax The following is the syntax for JComboBox initialization: String[] fruits = {"Apple", "Banana", "Orange", "Mango"}; JComboBox comboBox = new JComboBox(fruits); We can create a ... Read More
Euler's theorem states that if two numbers (a and n), are co-prime i.e. gcd(a, n)=1, then 'a' raised to the power of Euler's totient function of n (a^φ(n)) is congruent to 1 modulo n i.e. a^φ(n) ≡ 1 (mod n). The Euler's Totient Function is denoted as φ(n) and represents the count of integers from 1 to n that are relatively co-prime to n. In this article, we have two co-prime integers. Our task is to implement the Euler Theorem in C++ using given co-prime numbers. Here is an example to verify the Euler Theorem for two co-prime numbers: ... Read More