OOP Concepts - Part 01

 - JAVA  Language -

        Class Hierarchy

•    Object 

•    Class

•    Method

•    Variable  

Standards












Class :  The first letter is uppercase

           example :-  Capital

Variable : The first letter is lowercase

           example :-  capital

Method : The first letter is lowercase and contains the parameter                 list

            example :-  capital()

  

Java print Statement










Assign Operator

String b = "max";
       b = "pro";

   =  :- What the equal sign does is substitute the value on the left side of               the equal sign for the variable on the right side of the equal sign.

     Equalization Operators

    String c == "hey";

      ==  :- The two equal signs make the value on the left equal to the                          variable on the right.

     Scope Identification

•   Curly brackets{ } are applied only to a class or method.

•   All codes are placed inside a curly bracket.

•   Curly bracket is used to indicate the relevant part.

     Class & Object

    Object

        To explain about an Object, let's see it with a simple example.

              

                                Properties(Features)

     -----------------------------------------------------------------------------------------

                                        Human                                  

                                       Walk         Eat   

                                Smile         See

                                Jump         Hear

                                    Write         Fight

                              Behaviors(Function)

    -------------------------------------------------------------------

•  Anything that has properties and behaviors is called an Object.

     

     Class

         To explain about an Object, let's see it with a simple example.

Car (Object)
👇

• Properties

• Behaviors

     Human   <--  8B                                

      Object   <--  8B

           👇

           👇

           👇

               Class.

    ---------------------------------------------------------------------

• In programming, regarding the properties and behavior of an object, an object is used as a Class, while Properties are used as a Variable. and used as behaviors and methods.
• Just like the properties and behaviors of the object, the variables and methods of the class are used.
• That is, a class is a template created for an object.
• A class can implement any objects by changing only the value.

                                                            

                                                            

                                       - See You in Part 2 -

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