why getter setter method is so important ?

Answer 1

So you can access and modify a private member of a class. It's only important if you will need to use it.

Ex/
class Me{
private String name;

Me(String newName){
this.name = newName;
}
}

How can I possibly access name from another class? Well, with an accessor, since the method would be public.

So, maybe I can do:
Me aMe = new Me("iam");
String myName = aMe.getName();

Answer 2

i want to get experience thats why i asked u

Answer 3

No.i think