#6.6 Java Tutorial | Encapsulation
In this lecture we are discussing:
1)What is encapsulation?
2)how to achieve encapsulation
3)Benefits of encapsulation
#1
What is encapsulation?
:- binding data with method to make your program secure is known as encapsulation.
Consider encapsulation as we have capsule and inside capsule everything inside a class is wrapped or encapsulated.
e.g
class A{ private int a;
public void setA(int num){a=num;}
public int getA(){return a;}
}
//here you can see that we can bind data with method inside a curly braces, it seems look like a capsule inside everything is present.
#2
how to achieve encapsulation?
:- through access specifiers private,protected,public,default . We can achieve
encapsulation.
#3
Benefit of encapsulation
i)Helpful in to achieve abstraction
ii)for security point of view it is most beneficial.
iii)you can maintain log file through method when you bind your data with method.
Note:
Always make variable as private and method as public to achieve security in program.
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Practical implementation of Encapsulation in Java
In this video we will see
Example of Encapsulation
What is Encapsulation
Why we need Encapsulation
Object characteristics
Object knows something with variable
Object does something with method
Getters and Setters
Setting value and fetching value
Running the code
Private variables
Public method
Accessing variable through methods
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