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The compiler turns them into Java classes. What we are writing are essentially text files with a “.java” prefix.

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A compiler is a program that takes code and makes it into something a computer can act on in this case, Java byte code. The cross-hatched lines mean that the class has yet to be compiled. The world class is the container while the actor does whatever action is required.

We will investigate each of these controls as we move through the program.Ĩ Greenfoot programs or “scenarios” require two basic classes: the World and the Actor class. Finally, the section along the bottom contains the Run, Pause, Speed, and Reset buttons. You can see the different classes within your project here and follow their hierarchy of inheritance. There is a longer narrow section along the right side of the screen called the Class Navigation Windows. The large central section is called the “world”. The Greenfoot IDE or “Integrated Development Environment” is very simple and easy to navigate. Open the folder called “Wombats and Leaves” and then open the Project file called “Project”. Start Greenfoot from your flash drive and navigate to the folder entitled examples. These are the fundamental building blocks of OOPħ Object Oriented Programming: The Object of the Game In this case, our first concepts are Classes and Objects. It is a good idea to begin each lesson by giving your students the fundamental concepts that they should master by the end of the lesson.

They are put together like building blocks to accomplish whatever task to program is required to do. OOP as we will call it, uses smaller sections of code, each designed to do a single task. It is a step away from the old procedural monolithic style of coding that depended on the program following a set script.

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Object Oriented Programming is a way of developing software using small units of code to model real world objects. Just plug and go.Ħ Object Oriented Programming: Class In Session

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These flash drives are completely self contained and should work on any Windows system without running an install file of any kind. This is a version of the Java Development Kit that is required for both Greenfoot and BlueJ to run. It is a logical progression from one to the other as the student becomes more skilled. BlueJ is also a java IDE that is a bit more advanced that Greenfoot. You should see an application called Greenfoot as well as one called BlueJ. Once it is recognized, navigate from “Computer” to the flash drive and let’s see what’s there. You should find a flash drive at your work station. I will give you resources and some techniques to use with your students but the main thing to remember is to have them type out the code.

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The goal of this instructional period is to teach you how to teach others to code, even if you are not an expert. You can not learn by copy and paste or by lecturing about code others have written. It may seem boring at times to copy line after line of code from a book or screen into a text editor but as you type through the lines you begin to see how they fit together. The instructor leads and the students follow along. In a word, the best way to teach coding is “practice”. Greenfoot keeps the complicated stuff “under the hood”. Greenfoot makes coding fun by allowing the new developer to concentrate on creating. Greenfoot is an introductory and education IDE that is also capable of some professional results. Greenfoot is one of the easiest ways to learn Java syntax and Object Oriented Programming techniques while not being buried in the minutia of the language. Refrigerators, thermostats, cars: many devices in the Internet of Things speak java.

Java is one of the most widely used programming languages on Earth. During breaks, Please feel free to share our experience on Social Media. If you have an important call, please take it in the hall. Teaching Java and Object Oriented Programming Techniques With Greenfoot