Using constructor methods

- When you create an instance of a class,…you typically call its constructor method.…In this code, in the project Constructors,…I'm calling the constructor method three times,…creating three instances of the Olive class.…But my Olive class doesn't have…an explicit constructor method declaration.…That's because of a specific compiler rule.…If a Java class doesn't have an explicit constructor,…the compiler creates a no arguments constructor for you.…But the other part of the rule is that…if you have a constructor that does receive arguments,…then a no arguments constructor won't be generated for you.…

If you want it, you have to explicitly declare it.…You can have as many constructor methods as you want…as long as there's signatures, that is, their data types…or the number of their arguments differ from each other.…So I'll make some changes to my Olive class.…I'll start here, right after my declarations…of the instance variables or fields.…A constructor method starts with the public access modifier.…Then you don't need a return value…