java encapsulation
GIAN Tutorials
3:48 AM
Encapsulation is one of the four fundamental OOP concepts. The other three are inheritance, polymorphism, and abstraction. Encapsulation in Java is a mechanism of wrapping the data (variables) and code acting on the data (methods) together as a single unit. In encapsulation, the variables of a class will be hidden from other classes, and can be accessed only through the methods of their current class. Therefore, it is also known as data hiding . To achieve encapsulation in Java − Declare the variables of a class as private. Provide public setter and getter methods to modify and view the variables values. Example Following is an example that demonstrates how to achieve Encapsulation in Java − /* File name : EncapTest.java */ public class EncapTest { private String name; private String idNum; private int age; public int getAge() { return age; } public String getName() { return name; } public String getIdNum() { re...
