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Code golfing is a programming competition that challenges participants to write programs that solve a particular problem with the fewest number of characters possible. In other words, code golfing is all about writing concise code. While code golfing can be done in any programming language, Python is particularly well−suited for this challenge due to its concise syntax and powerful built−in functions. In this article, we will explore some techniques and strategies for code golfing in Python, along with examples and output where applicable. Use List Comprehensions List comprehensions are a powerful tool in Python for creating lists in a concise ... Read More
In Java, one way of passing arguments at runtime is by using the command line or terminal. While retrieving those values of command line arguments, we may need to find the number of arguments provided by the user at runtime which is possible with the help of length property. This article aims to explain the process of passing and getting the number of arguments provided by user with the help of example programs. Getting the Number of Arguments provided by User at Runtime Before finding the number of command line arguments, our first step is ... Read More
Python, a versatile and powerful programming language, has gained immense popularity due to its simplicity and extensive library support. With Python, developers can create a wide range of applications, from web development to data analysis and automation. One of the standout features of Python is its ability to handle command−line interfaces (CLIs) effortlessly, thanks to modules like Cmdparse. In this tutorial, we will take a deep dive into the Cmdparse module and learn how to harness its features to create robust and interactive CLIs. We will start by covering the basics, including the installation process and importing the module into ... Read More
Python, with its simplicity and versatility, has gained immense popularity among developers worldwide. Its extensive range of libraries and frameworks allows programmers to accomplish a wide array of tasks, including web automation. When it comes to automating web browsers, Selenium, a powerful tool in the Python ecosystem, takes center stage. Selenium provides a user−friendly interface to interact with web pages, making it an indispensable tool for web testing, scraping, and automation tasks. In this tutorial, we will delve into the world of Python and Selenium to explore a specific task: closing a web page programmatically. Have you ever found yourself ... Read More
In Java, one of the convenient ways to determine the length or size of an array is by using its length property. It counts the number of elements stored in an array and returns the count. Finding the length of an array is one of the common yet crucial operation as it is used to find the number of elements of an array, append new elements into it and retrieve stored items. This article aims to explain the various ways to get the length or size of an array. Java Program to determine the length or size of an Array ... Read More
In Java's object-oriented paradigm, inheritance plays a significant role, allowing developers to create classes that reuse, extend, and modify the behavior defined in other classes. To facilitate seamless interaction between a superclass and its subclass, Java provides the super keyword. This article will focus on understanding and effectively using the super keyword in Java to call a base class constructor Exploring the Super Keyword The super keyword in Java is a reference variable that is used to refer to the immediate parent class object. Whenever you create an instance of a subclass, an instance of the parent class is also ... Read More
In the domain of concurrent programming in Java, controlling access to shared resources is crucial. This need is often fulfilled through synchronization mechanisms such as locks and monitors. However, these tools typically only protect a single instance of a resource. What if you have multiple copies of a resource and you need to control access to them? This is where Semaphores come into play. In this article, we will delve into the usage of Semaphores to protect more than one copy of a resource in Java. Understanding Semaphores Semaphore is a synchronization mechanism that controls access to one or more ... Read More
In the world of Java programming, Google's open-source Guava library introduces powerful utilities that bolster the Java developer's toolkit. Among these, Guava's Collectors bring a unique enhancement, enabling a seamless transition of data from streams to immutable collections. This article provides a detailed guide on leveraging Guava's Collectors for collecting streams into immutable collections in Java. The Power of Immutable Collections Immutable objects have a fixed state after their creation, which means they cannot be modified. This property brings a host of benefits, including simplicity, thread-safety, and the guarantee that they will always remain in a consistent state. Java's core ... Read More
In the dynamic world of Java programming, achieving optimal performance is often the central goal of developers. In this realm, different wait strategies, including busy spinning, can play a pivotal role. This article aims to provide a detailed understanding of busy spinning as a wait strategy in Java, why it's important, and how it can be efficiently utilized. Understanding Wait Strategies In concurrent programming, wait strategies determine how a thread should wait when there is no work available for it. Different wait strategies can drastically impact the performance of concurrent applications. A commonly used approach is blocking, where a thread ... Read More
Geometrical computations play an essential role in various domains of computer science such as computer graphics, gaming, and computational geometry. Among the myriad of geometric operations, determining whether two lines intersect is a fundamental problem. In this article, we'll take an in-depth look at how to test if two lines intersect using the above/below primitive method in Java Understanding the Concept The above/below primitive is a fundamental concept in computational geometry. It helps determine whether a point lies above, below, or on a line. To assess whether two lines intersect in the two-dimensional plane, one needs to check if the ... Read More