Java is powerful. You can do many things with Java. Java is ugly too. Really. You don't want to use Java to write the part of the application that your user will see. That part is called UI - User Interface or GUI - Graphical User Interface. That's why I started with tests. You can… Continue reading Potato wants to use a calculator
When I studied electronics everyone was using scientific calculator made by Casio. It model was fx350ES PLUS. Every second person had the same one. Like a real object has its own characteristics, so does Java Objects. Those characteristics are called attributes. The Calculator class you already know also has attributes describing it such as model or a producer:… Continue reading Inside the hut: class attributes
What are Methods? As I wrote in previous chapter methods do things. The method is a piece of code that has a name and can be used in various places of your program. After method finishes its task it can return a result. Let's take a look at the well-known method add: The method above… Continue reading Inside the hut: methods
In your Calculator project you have two java files: Calculator.java in src/main/java where you will write the calculations CalculatorTest.java in src/test/java that you will use to test the code written in Calculator.java Write some code Open Calculator.java. You can see a code needed to write some functions of the calculator inside: add, subtract, multiply etc. It is… Continue reading Going up: let's write some code!