modifier

• Modifier: Use like an adjective.

Adding extra(additional) meaning in front of class and class members(class members or methods)

• access modifier : public, protected, (default), private // one of them.

• else : static, final, abstract, native, transient, synchronized, volatiole, strictfp//possible to have multiple

1. static

modifier	subject	meaning
static : (class of, common)	member variable	common class variable for all instances(=object) available without creating instance being created when class is loaded on memory
	method	available to call static method without creating instance CANNOT use instance members(iv, im) within satic method because instance members might not exist

2. final

modifier	subject	meaning
final : non-changable, non-expandable	class	CANNOT be parent
	method	non-changable method.=>CANNOT be overriding.
	member variable	non-changable, just being constant.
	local variable	non-changable, just being constant.

3. abstract

=> CANNOT create instance(object) because it is not completed.

=> Can create instance via inheritance completing implementation of abstract method(class).

modifier	subject	meaning
abstract : literally abstract, not completed	class	There is abstract method in class
	method	There is only declaration and no implementation contents.