Answer Posted / balbir

encapsulation:wraping of data and method into single unit.
e.g:

public class Test {
private int id;
private int roll;

public void method(int i,int j){
id = i;
roll = j;
System.out.println("===id==="+id);
System.out.println("===roll==="+roll);
}
public static void main(String args[])
{
Test t =new Test();
t.method(100,200);
}
}

in above example privatevariable wrap with public
method,this is encapsulation.

Abstraction:hiding the implementation details from the
external users.
e.g: electric switch board is available for end user
without knowing the implementation details.means end user
not bother about what is the manufactored items inside th
switch board.this is called abstraction.

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