The
Number
is
part of the java.lang package
The
Exception class has two main subclasses: IOException class and
RuntimeException Class.
non-access modifiers in java
These
are the modifiers which are used to achieve other functionalities
like,
a)
static : This modifier is used to specify whether a member
is a class member or an instance member.
b)
final : It is used to restrict the further modification
of a class or a method or a field.
Interface
Abstract classes may contain both abstract methods as well
as concrete methods. But interfaces must contain only abstract
methods. Concrete methods are not allowed in interfaces. Therefore,
Interfaces show 100% abstractness.
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