Static keyword

static

static It is called static , Can be used to modify the properties of a class , Method , Code block , Inner class .

• Load as class loads .

• Exist prior to objects .

• By static Decorated member , Can be shared by all objects .

• Don't create objects , It can be used by itself , Directly called by the class , Without having to refer to specific instances .

Static members are loaded along with the class , You can use ; Non static members must be created after the object , Can be used .

Declare as static The variables of are called static variables or class variables . Generally referenced by class name , You can also use the instance name to reference .

Declare as static The method of is called static method or class method . Static methods can be called directly , Access static variables , However, instance variables and instance methods cannot be accessed directly . Cannot use... In static methods this keyword .