Today i will demonstrate how to use Encapsulation in Java.
EnCAPSULation = Capsule means it is data hiding.
It is 1 of 4 fundamental in OOP concept. The others are Inheritance, Polymorphism and Abstraction.
Google it to know more :)
In this tutorial we will create two java file
Customer.java
public class Customer {
private String customerID;
private String customerName;
private String address;
private int pinCode;
public String getCustomerID() {
return customerID;
}
public void setCustomerID (String myCustomerID) {
customerID = myCustomerID;
}
public String getCustomerName(){
return customerName;
}
public void setCustomerName (String myCustomerName){
customerName = myCustomerName;
}
public String getAddress () {
return address;
}
public void setAddress(String myAddress) {
address = myAddress;
}
public int getPinCode(){
return pinCode;
}
public void setPinCode(int myPinCode){
pinCode = myPinCode;
}
}
EncapsulationTry.java
public class EncapsulationTry{
public static void main (String [] args){
// Creating object of Customer Class
Customer customer = new Customer();
/* Calling setter methods for setting the values of instance variables */
customer.setCustomerID ("0123");
customer.setCustomerName ("MFZ");
customer.setAddress ("Seremban,Negeri Sembilan, Malaysia");
customer.setPinCode (70400);
/* Calling getter methods for printing the values of instance variables */
System.out.println ("Customer ID :" + " " + customer.getCustomerID());
System.out.println ("Customer Name:" + " " + customer.getCustomerName());
System.out.println ("Customer Address:" + " " + customer.getAddress());
System.out.println ("Customer Pin Code:" + " " + customer.getPinCode());
}
}
Then compile all the java file and run the EncapsulationTry.class
Analyse the result and code, InsyaAllah you can get the point.
