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We can pass a Python function as a function argument by treating it like any other object. In Python, functions are first-class objects. This means you can treat them like any other value, assign them to variables, return them from other functions, and even pass them as arguments to other functions. Passing functions as arguments allows you to create flexible and reusable code. This is useful in cases like sorting, filtering, customizing behavior, and implementing callbacks. In this article, we will explore how you can pass a function to another function in Python and how it helps in building higher-order ... Read More
Function overloading means defining multiple functions with the same name but different arguments. This is a built-in feature in many programming languages like C++ or Java. However, in Python, function overloading is not directly supported, but we can achieve it using some techniques. Python uses a concept called dynamic typing, which allows us to define functions that can take different types and numbers of arguments. We cannot create multiple functions with the same name, but we can still achieve similar functionality using methods like default arguments, variable-length arguments, or special modules like functools.singledispatch. Using Default Arguments One way to overload ... Read More
Recursion is a process where a function calls itself repeatedly with new input values, slowly moving toward a condition where it stops. This stopping condition is called the base case. It prevents the function from running endlessly and allows it to return a final result. In Python, we can create recursive functions by simply defining a function that calls itself. Every recursive function has two main components − Recursive Case: This is when the function calls itself to solve a smaller part of the problem. It keeps the process going. Base ... Read More
C++ is a general-purpose, object-oriented programming language, which was developed by Bjarne Stroustrup at Bell Labs in the 1980s. It's an extension of the C language as it includes C features with additional object-oriented concepts like classes, inheritance, polymorphism, encapsulation, and abstraction.Before, it was known as "C with Classes" around 1979, but later renamed as C++ in 1983. These versions of the C++ language are compilers, which are implemented with the following rules made by the ISO C++ community, the community that looks over the development of the language. Here is the following list of C++ versions. ... Read More
In this article, we will learn about the basic structure of a program in Java. Java is widely used for developing large-scale applications, including Android apps, web applications, and enterprise software. To write a Java program, it's essential to understand its basic structure, which consists of several key components. Components A typical structure of a Java program contains the following elements: Package declaration Import statements Comments Class definition Class variables, Local variables Methods/Behaviors ... Read More
In this article, we will learn different ways to register a driver in Java. JDBC (Java Database Connectivity) is a standard API used to connect Java applications with databases. Before interacting with a database, you must register the JDBC driver so that the DriverManager can recognize and load it.To connect with a database using JDBC, you need to select the driver for the respective database and register the driver. You can register a database driver in two ways: Using Class.forName() method Using the registerDriver() method Register Driver Using Class.forName() Method The ... Read More
The JOptionPane is a subclass of the JComponent class, which includes static methods for creating and customizing modal dialog boxes using a simple code. The JOptionPane is used instead of JDialog to minimize the complexity of the code. The JOptionPane displays the dialog boxes with one of the four standard icons (question, information, warning, and error) or the custom icons specified by the user. Types of Dialogue Boxes in JOptionPane The JOptionPane class is used to display four types of dialog boxes: MessageDialog ConfirmDialog InputDialog ... Read More
In this article, we will learn about the importance of the Container class in Java. The Container class plays a vital role in creating graphical user interfaces (GUIs) and managing the layout of components. What is the Container Class? A Container class can be described as a special component that can hold a group of components. There are two types of Swing Containers they are top-level containers and low-level containers. Top-level containers are heavyweight containers such as JFrame, JApplet, JWindow, and JDialog. Low-level containers are lightweight containers such as JPanel. The most commonly used containers are JFrame, JPanel, and JWindow. ... Read More
In this article we are going to check whether the string starts with the substring or not, It is useful for checking whether the string starts with the substring, which is helpful in tasks like filtering data or validating input. In Python there are various ways to perform this check, such as startswith(), string slicing and regular expression. Let's dive into the article to learn more about them. Using python startswith() Method The Python startswith() method is used to check whether the string starts with a given substring or not. This method accepts a prefix string that you ... Read More
While working with the strings in python, we will find the situations to break the string into parts. This is called splitting a string and is usually done based on a delimiter, this is nothing but a character or sequence of characters that separate the parts of the string. Python provides the several ways for achieving this, depending on whether the delimiter is simple string or a pattern. Let's dive into the article to learn more about splitting string by delimiter. Using python split() Method The python split() method is used to split the words in a string separated by ... Read More