#62 Inner Class in Java

Check out our courses:

Coupon: TELUSKO10 (10% Discount)

Coupon: TELUSKO20 (20% Discount)

Udemy Courses:

For More Queries WhatsApp or Call on : [phone]

In this lecture we will learn:
- What is an inner class in Java?
- Static inner classes in Java
- Advantages Of inner class

#1
Inner Class:-
- We can also create a class inside another class.
class A
{
class B
{
}
}
- You can call the method of class B by using the dot operator in between both classes A and B.
A.B obj= new B();
- A dollar sign will be introduced in a class name that has an inner class indicating two different classes.
A$B. class
- You also need to create an object of the outer class, to call the methods of an inner class.

#2
Static Inner Class:-
- An inner class can also be declared as static.
- When an inner class is declared as static, then you do not need to create an object for it.
- But an outer class can not be made static.

#3
Advantage of inner class:-
- Nested classes represent a particular type of relationship that is it can access all the members of the outer class, including private.
- Nested classes make the code more readable and maintainable.
- It makes the code more optimize.

More Learning :

Donation:
PayPal Id : navinreddy20

[seeesh]

Bro is the best teacher in the world !

[reddykailasam]

Sir, please can u do videos in telugu?
Your explanation is wonderful. If u do videos in telugu, a lot of telugu people will understand and learn Java

[toptecher]

sir when i am doing so i am getting error obj package not found
A obj = new A();
A.B = new obj.B();
//i have made class A and B as you made
//when i make B static it works well

[talhaofficial]

but sir ham to static ka object banaty hi nahi hy to ye kese ho raha hy

[abhis]

Are all inner class static and vice versa

[harshabannaravuri]

Why outer class cannot be private are protected

[bollywoodpoezierd]

I don't understand why you need innerclass