The basic classes mini app

The generals who will be using our app will need more than one Soldier object. In our app that we are about to build, we will instantiate and use multiple objects. We will also demonstrate using the dot operator on variables and methods to show that different objects have their very own instance variables.

You can get the completed code for this example in the code download. It is in the chapter 9/Basic Classes folder. Alternatively, read on to create your own working example.

Create a project with a blank activity. Call the application BasicClasses. Now, we create a new class called Soldier:

1. Right-click the com.gamecodeschool.basicclasses (or whatever your package name is) folder in the project explorer window.

2. Select New | Java Class.

3. In the Name field, type Soldier and left-click on OK.

The new class is created for us with a code template ready to put our implementation within it, just like the next image shows:

Notice that Android Studio has put the class in the same...