INSTANCE V/S STATIC

INSTANCE VARIABLES:
        Instance variables are declared inside the class but not inside the method
eg:
class Test {
int data = 15; //instance variable
floor pi = 3.14f;
}

PROPERTIES OF INSTANCE VARIABLES:
1 Instance variable always get default variables
2 Cannot be reinitialized directly within the class

class Test {
int data = 15; 
data = 20;//error

}

class Test {
int data = 15; 
void someMethod(){
data = 20; //allowed
}}


************************************


STATIC VARIABLES:
            Instance variables are declared within the class and we need to use static keyword
class Test {
static int data = 15; //only one copy is created per class 
data = 20;//error

}
        


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