Java: Learn Java In 2 Hours And Start Programming Today! by Cooper Alvin

Author:Cooper Alvin [Alvin, Cooper]
Language: eng
Format: azw3
Published: 2017-12-03T05:00:00+00:00

Creating Objects

Evidently, as the class is a template, you will need to create objects using this template. In order to create objects, the keyword ‘new’ is used. Creation of an object involves three steps. The first step is to declare a variable for the object. The second step is to create an object using the new keyword. Lastly, the object needs to be initialized using the constructor for the class.

\In case you omit the third step, Java uses the default constructor method for object initialization. All these three steps are combined into one statement for object creation. For example, we have a class DemoClass and we wish to create an object O1, then this can be done using the statement –

DemoClass O1 = new DemoClass

The variables and methods of the class for which the object is created can be accessed using ‘.’ operator. Therefore, if we have a class DemoCO with the variable x and we create an object O1, then we can access x using the following statement: O1.x.

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