# 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

```java
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            | <p>When Class is on memory.</p><p>Even when instance(object) is not created yet.</p><p>=> Can use anytime</p> |
| <p>Instance Variable</p><p>(그냥 그 객체(인스턴스) 안에 있는 변수라고 생각하면 될듯)</p> | Class Area            | When Instance(object) is created                                                                              |
| Local Variable                                                    | Except for Class Area | When variable is declared                                                                                     |