ENCAPSULATION IN JAVA

The process of creating a class by hiding internal data from the outside world and accessing it only through public exposed method is known as data encapsulation / data hiding.

To develop encapsulation in java

• ·        By declaring variables as private, to restrict it from direct access and
• ·     By defining one pair of public setter and getter methods to access private variables. 

Example –

class Account{

private double balance;

          public double getBalance() {

                   return balance;

          }

          public void setBalance(double balance) {

                   this.balance = balance;

          }

}

public class Test1 {

          public static void main(String[] args) {

                   Account a = new Account();

                   a.setBalance(50000);

                   System.out.println(a.getBalance());

          }

}

Output –

50000.0