At the end of this post, you will find three cheat sheets. A Java, C# and a Python Cheat Sheet and the other one for C#. When you download the files, you will see the most common constructs of each language used in Object-Oriented Programming. Notice that in these cheat sheets, you will find only […]
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In this post, you will find some of the most common syntax errors in Java and tips on how to fix them. Most of these errors are common to all programming languages. Here, you will only find the errors and possible ways on how to fix them. For you to have a better understanding of
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Syntax errors are a common issue for beginners. That’s why I will give you some tips on how to fix and avoid them. It is worth mentioning that once you have some experience, this type of error won’t be an issue at all for you. However, at the beginning of your programming studies, it can
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Abstract class concept is one of the basic concepts of Object-Oriented Programming. It gives us the possibility of modelling concepts from the real world and facilitates the use of one of the OOP principles: code reuse. An abstract class in Object-Oriented Programming (OOP) is a class that cannot be instantiated. In other words, you cannot
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Parameters is a very important topic in Object-Oriented Programming and other programming paradigms. It enables you to define input for algorithms implementations in a certain programming language. During many years of teaching programming, I observed that many students struggle to fully grasp this concept and use it when required. In this article, I’ll give a
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Beginners usually struggle to grasps OOP concepts. I trust that with this illustrated guide, beginners will get a better understanding of the basic OOP concepts. What is programming? “The process or activity of writing computer programs.” Oxford dictionary. “A computer program is a collection of instructions that can be executed by a computer to perform
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In this post, you will learn how to read an excel file using Pandas Library for python. We are going to use a real-world dataset as an example. If still don’t know what Pandas Library for Python is, you can check this post. When analyzing data, you can be tempted just to get data and
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Pandas is one of the tools that you can use in Python to analyze data. It is a popular library because of all the functionalities that offer and its flexibility. Pandas for python is a Data Analysis Library. It provides us with several data structures that facilitate the analysis of the data after we represent
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Arrays are a powerful tool in any programming language. In this Unit we are going to cover unidimensional and multidimensional arrays in Java. The general term to refer to arrays is collections. During the lessons, you will see these terms interchangeable. Lesson 1: Collections in Java: Unidimensional arrays Collections is a very important topic in
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Arrays are very important in programming. Because of that, I’ll show you problems and solutions that require the use of arrays. Arrays problem 1: Lenovo Company Consider one of the examples of the previous lessons. ” Lenovo is a PC company that creates and sells laptops. The company has a record of all the laptops
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