How to sort a list in Python
In this article, we’ll learn how to sort list, list of dictionaries, and list of tuples in Python. We can sort lists, lists of tuples, and list of dictionaries in …
Learn More 
How to extract numbers from a string in C?
In this article, you’ll learn how to get numbers from a string in C with examples. There are many ways to do that, but my favorite a recommended method is …
Learn More
Is Linux an Operating System?
This article answers one of the most asked questions, “Is Linux an operating system?”. Most of it is discussed in the history of Linux and UNIX, where I explained how …
Learn More
From UNIX to Linux – History of Linux
You’ve probably heard about Linux or at least the word Linux. You might even know it’s an operating system, in fact, it’s the kernel used at the heart of the …
Learn More
Best themes for Ubuntu: Make Ubuntu Beautiful
In this article you’ll learn about best themes for Ubuntu and how to install themes on Ubuntu to create a cool Ubuntu desktop using available themes. Linux is all about …
Learn MoreC program to delete an element from an array
This C program takes the position as input from the user and deletes the element of array at that position.In this program, the original array and its size is also …
Learn MoreInsertion sort in C
In this post, you’ll learn about the insertion sort algorithm in C and how to implement it in the C programming language with and without a function using example programs. …
Learn MoreSelection sort in C
In this article, you’ll learn about the selection sort algorithm and its implementation program in the C programming language with and without a function in easiest possible way. Selection sort …
Learn MoreBubble sort in C
In this article, you’ll learn about the bubble sort algorithm and how to implement it in the C programming language with and without a function in easiest way. Bubble sort …
Learn More
Data types in python | Python tutorial
There are mainly 7 data types in python: Numerical String List Tuple Dictionary Set Range Let’s try to understand these data types. 1. Numerical data types Numerical data types mainly …
Learn More
Strings in Python
string in python is one of the most important and interesting data type. . .
Learn More
How to install Visual Studio Code on Ubuntu?
Microsoft’s Visual Studio Code is the IDE for both novice and professional software/application developers. It is very easy to use and no expensive resources are required to run this IDE. …
Learn More
Learn Python programming- Getting started
This article covers the most common query – How to start programming in python? Start python by running the Python interactive prompt.Just type python (or python3 if you’ve both python …
Learn More
Is Python hard to learn? Top best learning resources
Is python hard to learn? How long to learn python? Is python easy to learn? there are many similar questions that come to one’s mind while starting to learn python. This article will clear your all the doubts related to the language and you’ll get the best resources to learn python at the end.
Learn MoreHow to copy a file in Python?
In this post, we’ll discuss how to copy a file in Python with code examples. How to copy a file in Python? shutil has many methods you can use. One of …
Learn MoreHow to concatenate strings in Bash?
Sample query: I need to concatenate two strings in bash, so that: echo mystring should produce helloworld How to concatenate strings in Bash? In general, to concatenate two variables you can …
Learn MoreHow to add new keys to a dictionary in Python?
In this post, we’ll learn how to add new keys to a dictionary in Python. How to add new keys to a dictionary in Python? You create a new key/value …
Learn MoreHow to iterate over the words of a string in C++?
In this post, we’ll learn how to iterate through a string word by word in C++. How to iterate through a string word by word in C++? Use this to …
Learn MoreWhat is the difference between __str__ and __repr__?
In this post, we’ll learn the difference between __str__ and __repr__ in Python. As answered by Ned, my rule of thumb: __repr__ is for developers, __str__ is for customers. Now, what is the difference …
Learn MoreDifference between 403 Forbidden and 401 Unauthorized HTTP responses
In this post, I’ll share the differences between the 403 and 401 HTTP responses and what use cases are appropriate for each response. What is the difference between 403 Forbidden …
Learn MoreHow to convert a String to int in Java?
Query: My String contains only numbers, and I want to return the number it represents. For example, given the string “1234” the result should be the number 1234. In this post, I’ll convert …
Learn MoreRemove space between rows and columns in a table with CSS
How to remove space between rows and columns in a table with CSS? Add this CSS reset to your CSS code to remove the unwanted space between rows and columns: …
Learn Moreexplicit keyword in C++
Short explanation: Suppose, you have a class String: Now, if you try: The character ‘x’ will be implicitly converted to int and then the String(int) constructor will be called. But, this is not what the user might …
Learn MoreWhat is serialVersionUID in Java?
Query explained: Eclipse issues warnings when a serialVersionUID is missing. The serializable class Foo does not declare a static final serialVersionUID field of type long What is serialVersionUID and why is it important? Please …
Learn MoreHow to check if a list is empty in python?
Query: For example, if passed the following: How do I check to see if a is empty? How to check if a list is empty in Python? This can be done using …
Learn MoreWhat is the difference between call and apply in JavaScript?
Query: What is the difference between using Function.prototype.apply() and Function.prototype.call() to invoke a function? func.apply(); vs func.call(); Are there performance differences between the two aforementioned methods? When is it best to use call over apply and vice versa? Difference between …
Learn MoreHow to catch multiple exceptions in one line in Python?
Query explained: I know that I can do: I can also do this: But if I want to do the same thing inside two different exceptions, the best I can …
Learn MoreWhat is dependency injection?
Dependency injection means giving an object its instance variables. Really. That’s it. The best definition I’ve found so far is one by James Shore: “Dependency Injection” is a 25-dollar term for …
Learn MoreHow to pretty-print JSON in a shell script?
Query: Is there a (Unix) shell script to format JSON in human-readable form? Basically, I want it to transform the following: … into something like this: How to pretty-print JSON …
Learn MoreDifference between service, provider, and factory in AngularJs
In this post, we’ll discuss services, factories, and providers in AngularJs and the differences between them in detail. So please follow through the whole post to get the best out …
Learn MoreHow to get the current URL with JavaScript?
Query: All I want is to get the website URL. Not the URL as taken from a link. On the page loading, I need to be able to grab the …
Learn More