Initialization- What does it mean?

I had the same question a couple weeks ago and tried to summerise the topic for a better understanding. Maybe it will help you too. For the explanation I will use the link that Conor have proposed for you.

http://stackoverflow.com/questions/19941825/purpose-of-a-constructor-in-java

You have this line of code:

Bicycle myBike = new Bicycle();

Here you create a Bicycle object named myBike. This single statement performs three actions: declaration, instantiation, and initialization myBike

LEFT is the declaration side, RIGHT is the definition side !!!

Declaration:

• The code set in left associate a variable name with an object type (Bicycle).

Instantiation:

• The "new" keyword is a Java operator that creates the object

The "new" operator instantiates a class by allocating memory for a new object and returning a reference to that memory. The "new" operator also invokes the object constructor. The phrase "instantiating a class" means the same thing as "creating an object." When you create an object, you are creating an "instance" of a class, therefore "instantiating" a class.

Initialization:

• In the example above you have no parameters inside Bicycle(). So like Conor said, the new object is uninitialised at this moment. So the code above invokes the no-argument constructor. If you write your code this way;

Bicycle myBike = new Bicycle(30, 0, 8);

new Bicycle(30, 0, 8) creates space in memory for the object and initializes its fields. The constructor Bicycle() takes 30, 0 and 8 and assigns/initialises them to the object myBike. Please correct me if I am wrong. I am also a bloody beginner:)

See the complete code in the Conors link ...

Hope it helps a little bit and sorry for my bad english.

Grigorij