Definition : Encapsulation in java is a means of wrapping code i.e knowledge (Variables) and and processes carried out on that knowledge i.e strategies collectively right into a single unit known as class. For instance capsule i.e. blended of a number of medicines.
- In encapsulation, the variables or knowledge of a category is hidden from another class and may be accessed solely by any member operate of personal class through which they’re declared.
- We are able to additionally use getter and setter strategies to get and set knowledge in it.
- As in encapsulation, the info in a category is hidden from different courses, so it’s also referred to as data-hiding.
- Encapsulation may be achieved by: Declaring all of the variables within the class as non-public and writing public strategies within the class to set and get the values of variables.
Instance :
public class Encapsulation {
non-public String identify;
non-public int rollno;
String getName() {
return identify;
}
void setName(String identify) {
this.identify = identify;
}
int getRollno() {
return rollno;
}
void setRollno(int rollno) {
this.rollno = rollno;
}
public static void predominant (String[] args){
Encapsulation e = new Encapsulation();
e.setName(“nandini”);
e.setRollno(100);
System.out.println(e.getName());
System.out.println(e.getRollno());
}
}
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Output : nandini
100
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