Static Flashcards
1
Q
Why do we use the static variable?
A
Static variables are common properties for all objects of a class. I.e it is a class level variable. This variable is only loaded once at the time of class loading, so it saves memory.
2
Q
What is the purpose of a static method?
A
A static method is common to all the objects of a class. We do not have to create an object of a class to call a static method. So it provides the convenience of not having to create an object to call it.
3
Q
What happens when static modifier is not mentioned in the signature of the main method?
A
As per Java specification, main method has to be marked as static. A program can compile with a non-static main method, but on execution it will give a NoSuchMethod exception.
