Do objects encapsulate data so that not even other instances of the same class can access the data?

Question

In Java,

Do objects encapsulate data so that not even other instances of the same class can access the data? Only when the keyword \"private\" is used? What are \"ac

Answer 1

Even if a field/method is 'private', it can still be accessed/invoked via reflection unless you install a custom security manager that disallows that.