An Access modifier limits the visibility of classes, fields, constructors, or methods in the Java program.
Class:
Outer class cannot be private but inner class can be private.
Access modifiers for Default constructor
Default constructor only exists if you write no constructor
Its access modifier matches the class modifier
public class → public constructor
default class → default/package-private constructor
If you write any constructor yourself, Java does not generate a default constructor.
If we declare any constructor of a class as private, then we cannot create an object of that class from outside the class.
Important Takeaways
protected + different package → access allowed only through inheritance.
Child reference = allowed because the object is of type Child, and Child inherits the protected field.
Parent reference = not allowed because the object is not part of the subclass; it’s a foreign Parent object.
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