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 […]
OOP: What are parameters and when to use them Read More »
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
OOP Concepts for beginners: Illustrated guide Read More »
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
Reading an excel file using Pandas Library for Python Read More »
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
What is Pandas for Python? Read More »
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
Arrays in Java for beginners Read More »
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
Unidimensional arrays problems and solutions Read More »
In this lesson, you are going to learn another important type of collection: multidimensional arrays in java. Imagine we must create a program to represent a matrix. A matrix in mathematics, is a rectangular array or table of numbers, symbols, or expressions. In this example, we will consider only a matrix of integer numbers. The
Two dimensional arrays in Java (with examples) Read More »
Collections is a very important topic in programming. Almost every code you will write will use collections in one way or another. In this article, you will learn what a collection is and how to use it in Java. There is a general term widely used in the programmer’s community to refers to a collection:
Collections in Java: Unidimensional arrays Read More »
Solving problems using a programming language is the main aim of learning programming. Let’s see an example of a problem and how to solve it using everything we learned until now (Unit 1 and 2). To solve a problem using programming, we have to follow certain steps, usually on the same order. We first identify
Solving problems using Java programming language: a full example Read More »
Loops in Java is the structure that will allow us to implement algorithms with repetitions. In this lesson, you will learn the two different types of loops you can find in most programming languages. Also, you will see how to use them in Java. From the lesson algorithms with repetitions, we created the following algorithm
