Zeeshan Afridi
About Zeeshan Afridi
Zeeshan is a detail oriented software engineer that helps companies and individuals make their lives and easier with software solutions.
howto · 2025-03-13
How to Mock Objects in Java
Learn how to effectively mock objects in Java using popular frameworks like Mockito. This comprehensive guide covers basic and advanced mocking techniques, providing practical examples to enhance your unit testing skills. Discover how to create reliable tests that isolate functionality and improve code quality. Whether you're a beginner or an experienced developer, mastering mocking will streamline your development process.
howto · 2025-03-13
How to Install XGBoost in Python
This article guides you on how to install the XGBoost package in Python, an open-source library renowned for providing better and faster machine learning solutions. Learn step-by-step methods including pip, conda, and building from source, ensuring you can leverage XGBoost's capabilities for your projects.
howto · 2025-03-13
How to Fix TypeError: Can Only Concatenate Tuple (Not Int) to Tuple
Learn how to fix the TypeError: Can only concatenate tuple (not int) to tuple in Python. This article explores the nature of tuples, common causes of the error, and effective solutions, including proper concatenation techniques and using tuple packing. Gain a solid understanding of tuples and enhance your Python programming skills.
howto · 2025-03-13
How to Python SyntaxError: Non-Ascii Character xe2 in File
In this article, we will explore the SyntaxError: Non-ASCII character xe2 in file in Python. Learn what causes this error, how to identify non-ASCII characters, and effective methods to fix it using Git commands and proper file encoding. Enhance your coding skills and avoid common pitfalls in Python programming.
howto · 2025-03-13
HTML Horizontal Bar
In this tutorial, learn how to create a horizontal bar in plain HTML using the `<hr>` tag and CSS. Discover various methods to enhance your web design with horizontal bars, including customization techniques for better aesthetics. Perfect for beginners and experienced developers alike, this guide provides clear examples and explanations to help you implement horizontal bars effectively.
howto · 2025-03-12
Time(NULL) Function in C++
This article explores the time(NULL) function in C++, explaining its purpose and usage. Learn how to retrieve the current calendar time in seconds since 1 January 1970 and convert it into a human-readable format. Discover how to measure time intervals for performance testing and logging events effectively. Enhance your C++ programming skills with practical examples and clear explanations.
howto · 2025-03-11
Void Pointer in C++
Explore the concept of void pointers in C++ with this comprehensive guide. Learn what void pointers are, how to use them, their advantages, and common mistakes to avoid. Discover how void pointers enhance code flexibility and memory management in C and C++.
howto · 2025-03-11
POD Type in C++
Explore the concept of POD types in C++, which stands for Plain Old Data. Learn how to define POD types, their advantages, and when to use them in your programming projects. This article offers a comprehensive overview of POD types, providing insights into their characteristics and benefits, making it essential reading for C++ developers looking to improve their coding practices.
howto · 2025-03-11
How to Uninstall JDK 8 From Mac
This article provides a comprehensive guide on how to uninstall JDK 8 from MacOS. Whether you're looking to free up space or upgrade your Java version, our step-by-step instructions will help you remove JDK 8 effortlessly. Learn about different methods, including using Terminal and the Java Uninstaller, to ensure a clean removal.
howto · 2025-03-11
How to Check Java Version in Mac
Learn how to check the installed Java version on your Mac easily. This comprehensive guide covers methods using the Terminal, System Preferences, and the java_home command. Ensure you are using the latest Java features and security updates with our step-by-step instructions. Perfect for developers and users alike, this article will help you manage your Java environment effectively.
howto · 2025-03-11
How to Fix the NameError: Input Name Is Not Defined in Python
Learn how to fix the NameError: Input Name Is Not Defined in Python with our comprehensive guide. This article explores common causes of the error, including variable definition, input function usage, typos, and scope issues. Discover practical solutions and examples to enhance your Python programming skills. Avoid common pitfalls and write error-free code with confidence.
howto · 2025-03-11
How to Fix Python ValueError: Invalid Literal for Float()
In this article, we explore how to fix the Python ValueError: invalid literal for float(). Learn what causes this error and discover effective methods to resolve it, including using try-except blocks, input validation, and regular expressions. Enhance your Python programming skills and handle float conversions smoothly.
howto · 2025-03-11
How to Fix Python ImportError: No Module Named _Tkinter, Please Install the Python-Tk Package
Learn how to fix the ImportError: No module named _tkinter by installing the python-tk package. This guide provides step-by-step solutions for Windows, macOS, and Linux users. Resolve your Tkinter installation issues and get back to building your GUI applications seamlessly.
howto · 2025-03-11
Python MRO (Method Resolution Order)
In this article, we explore Python's Method Resolution Order (MRO) and its significance in inheritance. Learn how MRO determines the search path for methods in classes with multiple inheritance, and discover practical examples to illustrate its functionality. Whether you're a beginner or an experienced developer, understanding MRO is vital for mastering Python's object-oriented programming features.
howto · 2025-03-11
Python Quine
Explore the intriguing world of Python quines, self-replicating programs that output their own source code. This article delves into various methods for creating quines in Python, providing clear examples and explanations. Whether you're a beginner or an experienced coder, learn how to leverage string manipulation and functions to master the art of self-replication in code.
howto · 2025-03-11
How to Refresh Page in Python Selenium
Learn how to refresh a webpage in Python using Selenium with this comprehensive guide. Explore simple methods like the refresh() function, JavaScript execution, and timed refreshes to automate your web testing and ensure you always see the latest content. Perfect for developers and testers looking to enhance their web automation skills.
howto · 2025-03-11
How to Create Background Image Gradient With CSS
Learn how to create stunning background image gradients with CSS in this comprehensive guide. Discover linear and radial gradients, how to layer images, and tips to enhance your web design. Elevate your website's aesthetic with eye-catching color combinations and techniques that engage visitors.
howto · 2025-03-04
How to Fix the SSL: CERTIFICATE_VERIFY_FAILED Error in Python
This article enlightens the details of the SSL: CERTIFICATE_VERIFY_FAILED error that you may face during connecting SSL with your websites or applications.
howto · 2025-03-04
Bin Data Using SciPy, NumPy and Pandas in Python
This tutorial demonstrates how we can use SciPy, NumPy and Pandas to bin data in Python.
howto · 2025-03-04
Auto ARIMA in Python
In this article, we will learn about Auto ARIMA in Python and how it works. The Auto Arima() Function of Python is used for the identification of optimum parameters of the fitted ARIMA model. Auto ARIMA function can be imported from Python library named pmdarima.'
howto · 2025-03-04
Variance Inflation Factor in Python
This article discusses the variance inflation factor in python, which measures the variance in a predictor variable explained by other predictor variables in the model.
howto · 2025-03-04
Python Circular Buffer
Circular buffer is an excellent way to use memory; it doesn't require shifting data around when adding new data or removing old data. It is a fixed-size buffer used as a queue; inserting and deleting data from it is more efficient. It is an advantage when working with large data streams.
howto · 2025-02-22
Python Generator Comprehension
In this article, we will learn the generators and generator comprehensions in python along with examples. A function uses the yield keyword at the end returns a generator.
howto · 2025-02-22
Nested Dictionary Comprehension in Python
In this tutorial, we will learn nested dictionary comprehension because dictionary comprehension is an efficient way to create a dictionary while nested dictionary comprehension is a versatile tool used to create various data structures.
howto · 2024-02-23
How to Fix Segmentation Fault in C++
In this article, we'll explore these common causes of segmentation faults and learn how to fix them effectively.
howto · 2024-02-23
How to Fix the AttributeError: Module Object Has No Attribute SSL_ST_INIT in Python
The AttributeError: 'module' object has no attribute 'SSL_ST_INIT' error is caused by a Python issue with the SSL module. This article aims to comprehensively address the potential causes of this error and give detailed solutions to resolve it.
howto · 2024-02-15
How to Establish a Connection Pool in JDBC
JDBC stands for Java Database Connectivity, it is an API of Java that connect the database and execute queries. The Java Database Connectivity is part of the Java Standard Edition (JavaSE). The JDBC drivers are used for the connection with database.
howto · 2024-02-15
How to Apply Multiple Transforms in CSS
Transforms are used to translate, rotate and scale elements. Multiple transforms can be used together based on your purposes. This blog will not explain how to use transforms but apply multiple transforms together.
howto · 2024-02-15
How to Implement Pandas Conditional Formatting
In this article we'll discuss about pandas conditional formatting. You can use the Python pandas package to conditionally format cells in a DataFrame.
howto · 2024-02-15
Pandas Profiling
In this article we'll discuss about Pandas Profiling. Python's Pandas Profiling library is a great tool for generating detailed reports on data frames. It saves time and effort when working with large datasets.
howto · 2024-02-15
How to Crop Image in Java
This article will discuss how to crop an image in java, and for that, we will use the subimage function from the BufferedImage class to crop an image in Java.
howto · 2024-02-15
How to Create Animation in Matplotlib
This article explains the steps in creating an animated chart in Python using the Matplotlib package. To understand the steps involved, one should have minimal knowledge of the Matplotlib library.
howto · 2024-02-15
Matplotlib Retina
In this article we will explain all about the Matplotlib retina. One of the Matplotlib key features is its support for retina displays, which are screens with a high pixel density. This makes Matplotlib figures look extremely sharp and clear, even on displays with a high resolution.
howto · 2024-02-15
How to Create Stackplot in Matplotlib
This post concentrates on explaining the different steps that are involved in creating a %matplotlib notebook graph in Python using the matplotlib package. Stackplot is a function in matplotlib that allows you to plot multiple data sets on top of each other.
howto · 2024-02-12
How to Remove a File in C++
This article discusses how to delete or remove a file in file handling in C++. File handling is a mechanism that helps us store, retrieve, and update data in a storage device permanently. Deleting a file is one of the operations we can perform in file handling.
howto · 2024-02-12
How to Create a Number Guessing Game in Java
The task is to write a Java program for a guessing game. The guessing game is a constraint satisfaction problem. You have to guess the right numbers in a given number of trials; otherwise, you do not win.
howto · 2024-02-12
Python Array Value Error
In this article, we'll discuss the Python Array Value Error. When more than 2 on-keyword arguments are passed in the array it raises ValueError: only 2 non-keyword arguments accepted.
howto · 2024-02-12
No Python Console Is Currently Selected to Run
There could be many reasons behind the no Python console being selected for run error. This blog will attempt to share the common reasons behind this error. We have also given you possible solutions to overcome the issues.
howto · 2024-02-12
How to Convert Dataclass to JSON in Python
This article navigates the process of converting Python dataclasses to JSON, best practices, and common issues.
howto · 2024-02-12
New Line in Ruby
This article will explain the new line in ruby and its methods in Ruby.
howto · 2024-02-12
How to Merge Arrays in Ruby
In this article, we will discuss the different methods used for merging arrays into a single array in Ruby.
howto · 2024-02-02
How to Fix the TypeError: Object of Type NoneType Has No Len() in Python
In this guide, we will learn how to fix the TypeError: object of type NoneType has no len() in Python. Basically, we get this error because we are passing None to the len() function, which has no length.
howto · 2024-02-02
How to Add Message to Assert in C++
This tutorial demonstrates C++ assert with message.
howto · 2024-02-02
How to Get the MD5 Hash of a File in C++
This tutorial demonstrates the working of MD5 algorithm that the MD5 message-digest is a cryptographic protocol which is used for authentication processes in the digital world. It is based on the hashing function for verification of files or text. The prominent 4 steps of MD5 algorithm are padding bits, append length, initialize MB buffer, and processing each block.
howto · 2024-02-02
How to Simplify or Reduce Fractions in Java
This article discusses how to simplify and reduce fractions in Java. In Mathematics, fraction is a number expressed as a quotient. It is represented in a/b form where a is the dividend (numerator) and b is the divisor (denominator).
howto · 2024-02-02
How to Use of SwingUtilities.invokeLater() in Java
SwingUtilities.invokeLater executes the runnable on the Abstract Window Toolkit event-dispatching thread. We do that because Swing data structures are not thread-safe.
howto · 2024-02-02
How to Calculate Average and Grade in Python
This article tells us how to calculate grade of students against 5 subject marks and get an average number for the subjects.
howto · 2024-02-02
How to Send String Using Python Socket
In computer programming, socket programming connects two or more nodes on the same network to communicate with each other. One of these nodes plays the role of a server while the other serves as a client.
howto · 2024-02-02
How to Escape HTML in Java
This article explains about how can we escape HTML characters and symbols in Java. And to do so we can use the Apache commons-text and StringEscapeUtils.escapeHtml4(str) methods to escape HTML symbols and characters in Java.
howto · 2024-02-02
How to Ignore Exception in Java
Exception handling mechanism is one of the core concepts of every programming language. Java is one of programming languages that allows us to ignore exceptions (abnormal condition) in run time with the different try-catch blocks.
howto · 2024-02-02
How to Create Java Do-While Loop With User Input
The do-while loop is also known as exit control loop and this loop in java allows you to run the body of the loop at least once before checking the condition because it is sometimes desirable to execute the body of a loop once even if the condition of the loop is false.
howto · 2024-02-02
How to Evaluate a Mathematical Expression in Java
In Java programming language, you can evaluate arithmetic expressions using stack. Stack is a data structure mechanism that works on the First In Last Out (FILO) or Last In First Out (LIFO), and we will be using it to evaluate an arithmetic expression.
howto · 2024-02-02
How to Clear Text Field in Java
Java is a general-purpose pure object-oriented computer programming language that is specifically designed to have as few implementation dependencies as possible. We can build graphical user interfaces with Java.
howto · 2024-02-02
How to Solve The AttributeError: __Enter__ in Python
In Python, the AttributeError is an error that is caused when you are using the object of a class with the with statement without defining the __enter__ function.
howto · 2024-02-02
How to Fix NameError: Variable Is Not Defined in Python
In computer programming, at some point, you will deal with the scope of variables, which is the accessibility or boundary of a variable. Some variables can be accessed throughout the program while some can only be accessed within a specific block.
howto · 2024-02-02
How to Solve WARNING: An Illegal Reflective Access Operation Has Occurred
An illegal reflective access operation has occurred when you have used the Java Reflection API in a manner that is not permitted. The Java Reflection API is used to find out the names of fields, methods, constructors, and other classes and interfaces, as well as to invoke methods, constructors, and other methods.
howto · 2024-02-02
How to Fix ValueError: Too Many Values to Unpack
The ValueError too many values to unpack occurs when the number of variables does not meet the number of values either is an array or an input statement.
howto · 2024-02-02
How to Fix ValueError: Setting an Array Element With a Sequence in Python
In Python, the ValueError: setting an array element with a sequence occurs when you try to assign an invalid data type to an array. This can also occur when you try to assign multiple values to a single location on the array.
howto · 2024-02-02
How to Fix the SyntaxError: Can't Assign to Function Call in Python
Assigning functions to any variables helps us store the function's return value and use it accordingly. This improves the overall code and reduces the redundant lines of code.
howto · 2024-02-02
How to Fix IndexError: Invalid Index to Scalar Variable
Diagnose and fix NumPy's IndexError: invalid index to scalar variable by checking whether an indexed value is a scalar or an array.
howto · 2024-02-02
How to Avoid the TypeError: Input Expected at Most 1 Argument, Got 3 in Python
In this guide, we will understand how to solve the TypeError: input expected at most 1 argument, got 3. We will also understand the causes of this error. Almost every computer software uses the input statement to take data or commands from users and provides to the software to achieve a specific task or behavior.
howto · 2024-02-02
How to Fix IOError: [Errno 13] Permission Denied in Python
The IOError errno 13 permission denied occurs in Python when you try to open a file from your local machine and provide the wrong path or tries to open a folder, application, or other compressed files instead of text files like docs, txt, csv etc.
howto · 2024-02-02
How to Fix ValueError: Not Enough Values to Unpack in Python
The ValueError: not enough values to unpack in Python occurs in a few different scenarios like iterating over dictionary keys but accessing the values too, or taking two inputs in the input statement but providing less than two values, or assigning fewer values to the expected number of values causes the ValueError not enough values to unpack.
howto · 2024-02-02
How to Fix OSError: [WinError 193] %1 Is Not a Valid Win32 Application
This article discusses some of the most common causes of the error that usually pops up on Windows 10. It is Winerror 193. This error occurs when Windows cannot run a file because the file was made for a different operating system.
howto · 2024-02-02
How to Fix FileNotFoundError: [WinError 2] the System Cannot Find the File Specified
This article gives the step-by-step instructions on how to solve the FileNotFoundError: [WinError 2] The system cannot find the file specified. If you've ever faced the FileNotFoundError, you know how frustrating it can be. The FileNotFoundError is technically called an IOError. It means that the program is not able to locate the file.
howto · 2024-02-02
How to Fix the TypeError: Decoding Unicode Is Not Supported in Python
This error occurs when we want to encode our output to UTF-8. This error typically occurs when decoding an str string from a particular coding. An unlawful string of str characters will result in the coding-specific decode() failing since coding can only translate a certain amount of str strings to Unicode characters.
howto · 2024-02-02
How to Fix Python TypeError: Unsupported Operand Type(s) for +: 'NoneType' and 'Int'
The TypeError: unsupported operand type(s) for +: 'NoneType' and 'int' occurs when you add an integer value and a null value, and the reason is that in Python, it isn't allowed to add two values of a different datatype.
howto · 2024-02-02
How to Fix CSV.Error: Line Contains Null Byte in Python
The CSV error: line contains null byte error can occur when trying to read a CSV file that contains a null byte. This can happen if the file is corrupt or if it is not encoded properly. To fix this, you will need to find and replace the null byte in the file.
howto · 2024-02-02
How to Fix AttributeError: Module Urllib Has No Attribute Request
Instead of fully importing the urllib module and then attempting to access its submodule request as an attribute, you should import the submodule request from the parent module urllib.
howto · 2024-02-02
How to Fix the SyntaxError: Invalid Token in Python
In this article, we will learn what is the SyntaxError: invalid token Python error and how to fix it. The token is an essential component of a statement, and combining these tokens delivers a meaningful pattern to the Python compiler.
howto · 2024-02-02
How to Fix Locale.Error: Unsupported Locale Setting in Python
In the article, we will learn what is the locale module and the locale error unsupported local settings, and how to fix the locale error.
howto · 2024-02-02
How to Fix ImportError: Missing Required Dependencies Numpy
In this article, we will learn what the ImportError: Missing required dependencies numpy, what the reasons that cause the ImportError and how to resolve it with command line interface (CLI).
howto · 2024-02-02
How to Fix Error Tokenizing Data C Error in Python
In this article, we will learn what is the error tokenizing data c error, the reasons behind the occurrence of this error and how to resolve it. Basically, this error is depended on the data you are providing, if the data has an issue then your Python program will not execute the data. Let's learn more about it.
howto · 2024-02-02
How to Fix Python TypeError: Unhashable Type: List
In Python, the TypeError unhashable type list occurs when you are providing a list as a key to the dictionary because Python dictionaries only accept hashable data types as their key, and lists aren't hashable.
howto · 2024-02-02
How to Fix ModuleNotFoundError: No Module Named Configparser
In this article we will learn what is the error ModuleNotFoundError: No module named Configparser, why does it occur and how to resolve this error.
howto · 2024-02-02
How to Fix ConnectionRefusedError: [Errno 111] Connection Refused
In this article, we will learn what is the ConnectionRefusedError, basically this error indicates that the client is unable to connect to the port on the system running the server script.
howto · 2024-02-02
The sprintf() Function in Python
This article speaks about the Python sprintf and demonstrates how to format a string using different approaches.
howto · 2024-02-02
How to Use of defaultdict in Python
This article describes the defaultdict and demonstrates its uses via code examples in Python.
howto · 2024-02-02
How to Calculate Edit Distance in Python
This article demonstrates edit distance in Python using insertion, deletion, substitution, and recursive implementation of the character string.
howto · 2024-02-02
How to Send an Email With Attachments in Python
This tutorial teaches how to send an email with attachments using Python.
howto · 2024-02-02
How to Read gzip File in Python
This tutorial highlights the importance of compressing a file and demonstrates how to compress and decompress using gzip in Python.
howto · 2024-02-02
How to Parse JSON Array of Objects in Python
This tutorial demonstrates how to parse JSON array of objects in Python.
howto · 2024-02-02
How to Send UDP Packet in Python
This tutorial demonstrates how we can send UDP packets using Python.
howto · 2024-02-02
How to Serialize a Python Class Object to JSON
This tutorial educates about serialization in Python and demonstrates Python class JSON serialization.
howto · 2024-02-02
How to Split CSV Into Multiple Files in Python
In this article, we will learn how to split a CSV file into multiple files in Python. We will use Pandas to create a CSV file and split it into other multiple files.
howto · 2024-02-02
How to Manage Python Dependencies
One of the challenges of using Python is managing dependencies. In this article, we will discuss and learn about the management of Python dependencies.
howto · 2024-02-02
How to Make Compound Interest Calculator in Python
In this article, we'll discuss the compound interest function and how to implement it in Python.
howto · 2024-02-02
How to Fix Python IndexError: list assignment index out of range
In this article, we'll learn how to fix the Index Error list assignment index out of range error in Python. Furthermore, I'll discuss the different possible solutions to this error which are the append(), and insert() functions.
howto · 2024-02-02
Bigrams in Python
A bigram is a pair of adjacent words in a text, while a trigram is a triplet of adjacent words. Bigrams and trigrams are commonly used in text analysis and natural language processing tasks, such as word segmentation, part-of-speech tagging, and text generation.
howto · 2024-02-02
How to Wrap Text Around an Image in CSS
In this article, we will discuss using CSS to wrap text around an image using the text-wrap property. Almost all major web browsers support the wrap-text property.
howto · 2024-02-02
How to Style Input and Submit Button With CSS
When styling a submit button for a web page using CSS, there are a few things to keep in mind. The button type should be submitted to trigger the form's submission action when clicked. The size of the button can be set using the width and height properties.
howto · 2024-02-02
How to Right Align a Button in HTML
In this article, we will learn how to create and align buttons to the right in HTML using CSS. We'll use the button tag to create a button and assign some CSS styling properties to it for the alignment.
howto · 2024-02-02
How to Center Bullet Points in HTML
Bullet points in HTML allow you to create a list of items on a web page, with each item in the list represented by a bullet point. You can control the appearance of the bullet points by using CSS, and you can use them to create both ordered and unordered lists.
howto · 2024-02-02
How to Bring an Element to the Front Using CSS
Adding the z-index to an element using a flexbox is a simple process. You must set the z-index of the element to a value greater than that of the other elements in the flex container, and the element's position should be set to absolute.
howto · 2024-02-02
How to Add a Transparent Border With CSS
In this article, we will discuss creating a transparent border around an image, button, or any other object in HTML. A transparent border is a border around an image or an object that improves the user experience.
howto · 2024-02-02
How to Remove CSS Styles for an Element Only
We can remove CSS styles for an element only. We can use the following methods to reset or remove CSS styles for an element: the all:revert CSS rule, the removeProperty() method, and the all:unset method.
howto · 2024-02-02
How to Get First Of Class in CSS
In this article, you will learn about CSS First of Class. We will discuss how to create style sheets for different classes of the same element. Furthermore, we will also learn about CSS First of Class property.
howto · 2024-02-02
How to Plot Pandas Scatter Regression Line
In this article we will explore how to use Python's Seaborn library and matplotlib method to create Pandas' scatter plots regression line.
howto · 2024-02-02
How to Pandas cut() vs qcut() Functions
In this article, we will discuss what is Pandas' cut() and qcut() functions. Basically, the Pandas cut and qcut are functions for binning data in Python.
howto · 2024-02-02
How to Use Gnuplot With Python
In this article, we will discuss Gnuplot and how we plot data in Gnuplot using Python. Furthermore, we will discuss the installation and use of Gnuplot and PyGnuplot packages in Python.
howto · 2024-02-02
How to Find Duplicate Rows in a DataFrame Using Pandas
In this article, we will learn how to find duplicate rows and columns in a Pandas dataframe. We will also create duplicate rows and select them based on columns.
howto · 2024-02-02
How to Use Java Synchronized Block for Class
In this article, we'll explain about synchronization block class in Java. Moreover, we'll discuss the details about synchronization, which will help us understand more about synchronization and synchronization blocks using Java.
howto · 2024-02-02
How to Set JAVA_HOME on macOS
In this article, we will learn about the steps to set JAVA_HOME environment variable on your systems especially on Mac X and Mac 11.
howto · 2024-02-02
How to Generate Barcodes in Java
We can create all types of barcodes with the help of Java libraries like zxing for generating barcode images and itextpdf for generating barcodes in PDF format.
howto · 2024-02-02
How to Process Real-Time Audio in Python
This post focuses on explaining the different steps involved in creating a real-time audio processing python. You can use the PyAudio library for this purpose. Let's discuss the detail of real-time audio processing in Python in this article.
howto · 2024-02-02
How to Replace Strings in Ruby
This article will explain the steps in replacing strings in Ruby. Ruby's replace method is a handy way to substitute one string for another.
howto · 2024-02-02
How to Generate Random Number in Ruby
In this article, we will explain how to create random numbers in Ruby. In Ruby, the rand method generates a random number.
howto · 2023-10-12
Struct Inheritance in C++
This tutorial demonstrates about struct and struct inheritance in C++ as well as the different types of inheritance. Structs are similar to classes in object oriented programming but classes are more secure as compare to structs in C++.
howto · 2023-10-12
A Declaration Shadows a Parameter Error in C++
This tutorial demonstrates what is access specifiers in C++ and what is a declaration shadows a parameter error in C++.
howto · 2023-10-12
Dereference an Iterator in C++
This tutorial demonstrates about iterators and dereferencing an iterator in C++. Iterators are like pointers which points to the elements of a data structure. You can iterate over them without knowing the indices of the elements inside.
howto · 2023-10-12
Inner Class and Static Nested Class in Java
In computer programming, a class is a blueprint that allows us to create individual class objects to access data from either data members or member functions. In Java programming, a class is defined with the keyword class. We can also say that a class is a user-defined data type with custom modifications.
howto · 2023-10-12
Bit Mask Operations in Java
In Java, bitmask allows us to store more than one value inside a numerical variable. We treat every bit of the value as a separate value instead of a single variable as a whole.
howto · 2023-10-12
Differences Between List and Arraylist in Java
A group of individual objects represented as a single unit is called a collection. In Java, the Collection is a framework with multiple defined interfaces and classes to represent a group of objects as a single unit. It allows us to manipulate and store a group of objects as a single unit.
howto · 2023-10-12
Collections Binary Search in Java
In this article, we will learn the collections.binarySearch() method in Java. We will see examples for both ascending and descending ordered lists.
howto · 2023-10-10
Asynchronous Requests in Python
This tutorial educates about asynchronous requests in Python and demonstrates how we can write and handle these requests.
howto · 2023-10-10
Tail Recursion in Python
This article educates about tail recursion and demonstrates how we can optimize recursion in terms of space and time in Python.
howto · 2023-10-10
Introduction to Bitmasking in Python
In this article, we will learn about bitmask and how to perform bitmasking with different operators like AND, OR, NOT etc. in Python.
howto · 2023-10-10
Different Ways to Implement Python Builder Pattern
Builder pattern is a creational design pattern that allows you to construct complex objects step by step. In this article, we will find the builder pattern in Python and its various use cases.
howto · 2023-10-10
Python - Tail a Log File and Compare Blocking & Non-Blocking Tail Functions
This article teaches about the tail() function in Python. It also discusses the differences between Python's blocking and non-blocking tail functions.
howto · 2023-10-10
Gaussian Kernel Python
The Gaussian kernel is a high-pass filter that is one of the most used in image processing. It is also used in machine learning. This blog will look at this kernel and how you can use it.
howto · 2023-10-10
Python Cache Library
The cache library is essential because it allows the system to manage the cache. The cache library can help improve the system's performance by providing a way to access the cache's data and manage the cache.
howto · 2023-10-10
Best Practices for Kwargs Parsing in Python
In this article, we'll discuss Python kwargs best practices. There are several ways to parse keyword arguments in Python, but the best practice is using the built-in kwargs feature. This article has all details about the best practices of Python kwargs.
howto · 2023-10-10
3D Interpolation in Python
This article will discuss 3d interpolation and its uses. We will discuss how to use 3d interpolation in Python, using the SciPy library, and its method interpn().
howto · 2023-10-10
%matplotlib Notebook
This post concentrates on explaining the different steps that are involved in creating a %matplotlib notebook graph in Python using the Matplotlib package. So, all detail about the %matplotlib notebook is available in this blog.
howto · 2023-10-10
Soundex in Python
This post concentrates on explaining the Soundex in Python. This function is used to calculate the Soundex code for a given word. It is a four-digit code that represents the sound of the word.
howto · 2023-10-10
Python Multiprocessing Shared Object
In this article, we'll discuss shared memory objects in multiprocessing using Python. Furthermore, we'll learn how objects could be placed in memory space using multiprocessing and how they share data between processes.
howto · 2023-02-20
CSS Transition With Multiple Properties
There are four transition properties in CSS. You may use the CSS transition properties individually, as well as using all four of the properties' shorthand means in a single statement.
howto · 2023-02-19
HTML Image Opacity
In this article we will learn what is image opacity, and how to use opacity on images to enhance the look and feel of the design. One common reason is to create a semi-transparent image, which can be used to overlay other content on a page. This can be used to produce interesting effects or to make an image more legible when it is placed on top of a background image.
howto · 2023-02-19
HTML Down Caret
In this article, we will discuss what is an HTML down caret and what are the different methods and tools that help us to create an upside-down caret character in HTML.
howto · 2023-02-19
HTML Callto
To use HTML callto embed code, just copy and paste the code into the HTML of your web page. You can then use the callto link to open the phone number in your visitor's default phone application.
howto · 2023-02-19
HTML Paragraph Width
Using the <div> tag, you may specify a paragraph's width, padding, margin, and other attributes. When constructing a div for usage in a paragraph style, we may supply an id that will be used in the div.
howto · 2023-02-19
HTML Italic Span
In this article, we will learn how to make text italic in HTML and see the correct way to make the text italic. We will use the following tags <i>, <em> or <span> which are used to make the text italic.
howto · 2023-01-30
The Path Python3 (From --Python=Python3) Does Not Exist
The path python3 (from --python=python3) does not exist error indicates that the path Python3 does not exist. This can be caused by many things, such as an incorrect installation of the path or a typo when specifying the path. To fix this, ensure that the path Python3 is correctly specified and that the path exists.
howto · 2023-01-30
HTML Unbold Text
In this article, we will learn how to remove bold styling from a header in HTML and will know how to remove bold formatting from a text or header. We will use different tags to unbold a text or header in HTML.
howto · 2023-01-30
Pandas Groupby Describe
In this article, we will discuss what is the Pandas groupby.describe() function and how it works. It is basically a function used for data analysis, it provides a statistical analysis of the data.
howto · 2023-01-30
DatetimeIndex.date in Pandas
In this article, we will explain the use of datetimeIndex using Pandas Library in Python. This article also provides code examples to help you get hands-on with the datetimeIndex function usage in Python.
howto · 2022-11-23
Not Equal Operator in Ruby
This post focuses on the Ruby not equal operator. If you want to examine whether two values are not equal, you can use the != operator. This operator compares two object references for inequality.
howto · 2022-11-17
Matplotlib PyCharm
In this article, we will learn installing Matplotlib in PyCharm IDE. We are also visualizing the data in line, bar, histogram, grid, and marker plots.
howto · 2022-10-25
Pandas Split Apply Combine
In this article we'll discuss about pandas split apply combine strategy. This strategy is beneficial when working with large data sets, as it can be difficult to analyze all the data at once. The analysis can be more manageable by breaking the data down into smaller groups and by applying the same function to each group, we can be confident that the results are reliable.