Give an program on data encapsulation?

Answer 1

Encapsulation is the the hiding of code inside of Objects. The method of performing encapsulation practices is set in a Class's Meta Data inside of the class declaration. To be more specific the modifers of class attributes and methods can be either private or public.

Example 1

// Placing before the attribute declaration the public modifier allows this attribute to be
// accessed by other objects or the main method.

public int age;


Example 2

// Placing private before the attribute declaration prevents other object or the main method
// from accessing the data.

private int age;