Variable type according to declared location

• Class Area

Starting point of Class ~ Ending point of Class.

Only decaration. ex) variable declaration, method declaration.

Instance Variable, Class Variable

• Method Area

Starting point of Method ~ Ending point of Method. =>Local Variable

class Variables {
   //Class Area
   int iv;//Instance Variable
   static int cv;//Class Variable  (static variable, sharing variable)
   
   //Method Area
    void method () {
     int lv = 0;//Local Variable
     } 
}

• Variable scope

Variable Type	Declared Location	Makint time
Class Variable	Class Area	When Class is on memory. Even when instance(object) is not created yet. => Can use anytime
Instance Variable (그냥 그 객체(인스턴스) 안에 있는 변수라고 생각하면 될듯)	Class Area	When Instance(object) is created
Local Variable	Except for Class Area	When variable is declared