LESSON 2 PART 1

CLASS

IS A SET OF OBJECTS WHICH SHARES COMMON CHARACTERISTICS/BEHAVIOR AND COMMON PROPERTIES/ATTRIBUTES.

CLASS

IS LIKE A BLUEPRINT OF AN ENTITY IN A PROGRAM AND IS COMPOSED OF ATTRIBUTES AND METHODS.

ATTRIBUTES

ARE THE VARIABLES FOR STORING THE DATA NEEDED BY THE ENTITY.

METHODS

ARE THE FUNCTIONS FOR INTERACTING WITH THE ENTITY TO MANIPULATE ITS ATTRIBUTES.

ACCESS_MODIFIER

DEFINES THE VISIBILITY OF THE CLASS.

ATTRIBUTES

VARIABLES THAT HOLDS THE STATE OF THE OBJECTS.

CONSTRUCTORS

USED TO INITIALIZE OBJECTS. IT IS USED TO SET INITIAL VALUES FOR OBJECT ATTRIBUTES.

METHODS

FUNCTIONS THAT DEFINE THE BEHAVIOR OF THE CLASS.

THIS VARIABLE

HOLDS THE OBJECT BEING MANIPULATED BY THE METHOD.

NEW KEYWORD

IS USED TO CONSTRUCT AN OBJECT FROM A CLASS.

VARIABLE

IS A CONTAINER WHICH HOLDS THE VALUE WHILE THE JAVA PROGRAM IS EXECUTED.

LOCAL VARIABLES

ARE DECLARED WITHIN A METHOD, CONSTRUCTOR, OR BLOCK OF CODE. THESE VARIABLES ARE ONLY ACCESSIBLE WITHIN THE BLOCK OR METHOD THEY ARE DEFINED.

INSTANCE VARIABLES

ARE VARIABLES DECLARED INSIDE A CLASS BUT OUTSIDE ANY METHOD, CONSTRUCTOR, OR BLOCK OF CODE.

CLASS/STATIC VARIABLES

ARE DECLARED WITH THE STATIC KEYWORD, INSIDE A CLASS BUT OUTSIDE ANY METHOD OR CONSTRUCTOR.

INSTANTIATION

MEAN TO CALL THE CONSTRUCTOR OF A CLASS THA CREATES AN INSTANCE OR OBJECT OF THE TYPE OF THAT CLASS.

OBJECT BEHAVIOR

REFERS TO THE ACTION THAT AN OBJECT CAN PERFORM, AND THESE ACTIONS ARE DEFINE BY METHODS.