• Abstraction in Java is the process of hiding internal implementation details and showing only essential functionality to the user.

Java provides two ways to implement abstraction, which are listed below:

• Abstract Classes

• Interface

Advantages of Abstraction

• Abstraction makes complex systems easier to understand by hiding the implementation details.
  

• Abstraction keeps different part of the system separated.
  

• Abstraction maintains code more efficiently.
  

• Abstraction increases the security by only showing the necessary details to the user.
  

Advantages of Abstraction

• Abstraction makes complex systems easier to understand by hiding the implementation details.
  

• Abstraction keeps different part of the system separated.
  

• Abstraction maintains code more efficiently.
  

• Abstraction increases the security by only showing the necessary details to the user.