No, we cannot declare a top-level class as private or protected. It can be either public or default (no modifier). If it does not have a modifier, it is supposed to have a default access.
Can we make a class private in Java?
Answer: We can not declare top level class as private. Java allows only public and default modifier for top level classes in java. Inner classes can be private.
Can a class be public/private protected and default?
First and important difference is the accessibility i.e. anything public is accessible to anywhere , anything private is only accessible in the class they are declared , anything protected is accessible outside the package but only to child classes and default is accessible only inside the package.
Can class be protected in C#?
Class members, including nested classes and structs, can be public , protected internal , protected , internal , private protected , or private . Class and struct members, including nested classes and structs, have private access by default. Private nested types aren’t accessible from outside the containing type.
Why a class can be made private?
A top-level class as private would be completely useless because nothing would have access to it. … This means that a top level class cannot be private. Private classes are allowed but only as inner or nested classes. If you have a private inner or nested class, then access is restricted to the scope of that outer class.
Can we declare constructor as private?
Yes. Class can have private constructor. Even abstract class can have private constructor. By making constructor private, we prevent the class from being instantiated as well as subclassing of that class.
Can we make constructor final?
No, a constructor can’t be made final. A final method cannot be overridden by any subclasses. … In other words, constructors cannot be inherited in Java therefore, there is no need to write final before constructors.
What is difference between private and protected?
The class members declared as private can be accessed only by the functions inside the class. … The class member declared as Protected are inaccessible outside the class but they can be accessed by any subclass(derived class) of that class.
How can we access protected and private members of a class?
Protected members can only be accessed by descendants of the class, and by code in the same module. Private members can only be accessed by the class they’re declared in, and by code in the same module.
Why is C# protected?
In c#, the protected modifier is used to specify that access is limited to the containing type or types derived from the containing class, so the type or member can only be accessed by code in the same class or in a derived class.
What is namespace C#?
The namespace keyword is used to declare a scope. The ability to create scopes within your project helps organize code and lets you create globally-unique types. In the following example, a class titled SampleClass is defined in two namespaces, one nested inside the other.
Can we override protected method in C#?
Yes, the protected method of a superclass can be overridden by a subclass. If the superclass method is protected, the subclass overridden method can have protected or public (but not default or private) which means the subclass overridden method can not have a weaker access specifier.
Which method Cannot be overridden?
A method declared final cannot be overridden. A method declared static cannot be overridden but can be re-declared. If a method cannot be inherited, then it cannot be overridden. A subclass within the same package as the instance’s superclass can override any superclass method that is not declared private or final.
Can a class be final?
You can declare some or all of a class’s methods final. You use the final keyword in a method declaration to indicate that the method cannot be overridden by subclasses. … Note that you can also declare an entire class final. A class that is declared final cannot be subclassed.
Which members of a class Cannot be inherited?
Explanation: Private members of a class can’t be inherited. These members can only be accessible from members of its own class only. It is used to secure the data. 4.