Answer:
Encapsulation provides objects with the ability to hide their internal characteristics and behavior. Each object provides a number of methods, which can be accessed by other objects and change its internal data. In Java, there are three access modifiers: public, private and protected. Each modifier imposes different access rights to other classes, either in the same or in external packages. Some of the advantages of using encapsulation are listed below:
- The internal state of every object is protected by hiding its attributes.
- It increases usability and maintenance of code, because the behavior of an object can be independently changed or extended.
- It improves modularity by preventing objects to interact with each other, in an undesired way.
