Java Chapter Fifth: Object-oriented (OOP)

Object : An instance that has features and functionality.

Class : Is an abstraction of an object, a concept in people's mind, a collection of objects with common characteristics or the same behavior, and the use of classes to create objects;

Create class: [Modifier] class class name { Create object: Class Name Object name = new class name ();

Properties: Similar to variable naming, [modifier] Data Type property name analogy: Scanner input = new Scanner (system.in);

Method: [modifier] Returns a value type method name (parameter list) { Access property and assign value: Object name. property name = value;

method body; access method (non-static): Object name. Method name ();

Access static method: Class name/Object name. Method name ();

}

Java Chapter Fifth: Object-oriented (OOP)