Object

Object

1. Methods (Actions)

   • Declaration
     • Method name
       • returnType
         • Primitive
         • Object
         • Void
           • No Return
         • Notation:
           • int
       • (List of Arguments)
         • Notation:
           • (int a, int b)
       • Notation:
         • add
   • Body
     • Code that performs action
   • Main

2. Fields (Attributes)

   • Variables
   • Class
     • Object
   • Naming Convention:
     • paulExample

3. Class (Template for Objects)

   • Object Clone
   • Object Clone
   • Naming Convention:
     • PaulExample
   • Constructor (Creates Object)
     • Same name as class
     • Declaration
       • constructorName
         • (List of Arguments)
           • Zero arguments is possible
     • Body
     • No Constructor
       • Compiler add no argument constructor
         • Won't be in source file

4. Creating an object

   • Notation:
     • new Object() ;
   • Add to variable
     • Notation:
       • Object variable = new Object() ;

5. Accessing Object Components

   • objectReference.methodName
   • objectReference.fieldName

6. Reference Variable (Refers to Object)

   • If it has no value assign it "null"
     • Notation:
       • Object variable = null