Object Oriented Programming Through Java by Pearson

1.12 Basics of Object-oriented Programming

Composition is a “has” type of relation. For example, we have given the above student

has name of string class and DOB of date class. If class date is defined inside a class called

student, we can call the date as inner class and the student as outer class.

1.6.2.1 Inner Classes

Class within a Class: Inner class is one of the techniques provided by Java to achieve reus-

ability of the code. Inner class means a class containing another class or more than one class.

• Inner class is visible only in outer class and not outside the outer class.

• Nested class or inner class can access all members including ...