That is shown in the next simple executable class (Main.java). Main.java. ... In general, I try to be very careful about a constructor calling methods as part of an instance’s instantiation.

That's why most Java classes provide non-default constructors, also known as parameterized constructors. For example, we might want the calling program to tell us if the car is a stick shift or not.

This post explains how to call a method in Java. Learn how to define methods, call them from other classes, and pass arguments! How to call a method in Java - Android Authority ...