9. Explain About friendly modifier?

Answer:

IT IS NOT A KEYWORD.

• If you don't specify an access modifier, then compiler assigns default access modifier, which is not a keyword.
• Java run time environment consider all the class files in a current working directory as a package. If any class, method, member variable or an inner class does not have any modifier considered as friendly.
• These features are available to the same class or in a same package, or sub classes of a same package.
• l If a method is declared in base class as private, it can be overridden by private, friendly,
• protected and public method.

10. Explain about java access modifiers overridden hierarchy?

Answer

• l private features are overridden by private, friendly, protected, public features.
• l friendly features are overridden by friendly, protected, public features.
• l protected features are overridden by protected and public features.
• l public features are overridden by only public features.
• A less access modifier can be overridden by with higher access modifier.
• You cannot have two access modifiers to a class, method, variable, or to an inner class.

11. Explain About static key word in java?

Answer:
Given to

• l Methods
• l Variables
• l Inner classes
• l Block of code

For example the main() method is public and is a static method. So the method which is declared as static has no this reference. Static features can be called through class name. So from a static method you cannot access non static features.Without object reference the static features are accessed.