Can we override private method?

No, we cannot override private or static methods in Java. Private methods in Java are not visible to any other class which limits their scope to the class in which they are declared.

What happens if we override private method?

Since method overriding works on dynamic binding, it's not possible to override the private method in Java. private methods are not even visible to the Child class, they are only visible and accessible in the class on which they are declared. private keyword provides the highest level of Encapsulation in Java.

What happens if we override private method in Java?

No, we cannot override the private methods because private methods will not be inherited to sub class. Note: If we create the same method in subclass then JVM will consider it as a sub class method, not the overridden method.

Can we overload private methods?

Yes, we can overload private methods in Java but, you can access these from the same class.

Can we override private method in Python?

You can do it still, by naming your object just so: def _Foo__method(self): where you prefix the method name with one more underscore and the defining classname (so in this case prefixed with _Foo ). The process of renaming methods and attributes with a double underscore is called private name mangling.

Why Static, Final, Private Methods are not Participated in Method Overriding? | Core Java Tutorial

Can abstract method override?

An abstract method is a method that is declared, but contains no implementation. you can override both abstract and normal methods inside an abstract class. only methods declared as final cannot be overridden.

Can we override static method?

Overloading is the mechanism of binding the method call with the method body dynamically based on the parameters passed to the method call. Static methods are bonded at compile time using static binding. Therefore, we cannot override static methods in Java.

Can private method static?

Yes, we can have private methods or private static methods in an interface in Java 9. We can use these methods to remove the code redundancy. Private methods can be useful or accessible only within that interface only. We can't access or inherit private methods from one interface to another interface or class.

Can we override inner class?

No, you cannot override private methods in Java, private methods are non-virtual in Java and access differently than non-private one. Since method overriding can only be done on derived class and private methods are not accessible in a subclass, you just can not override them.

Can private class be inherited?

Members of a class that are declared private are not inherited by subclasses of that class. Only members of a class that are declared protected or public are inherited by subclasses declared in a package other than the one in which the class is declared. The answer is No. They do not.

Can we overload or override private methods?

No, we cannot override private or static methods in Java. Private methods in Java are not visible to any other class which limits their scope to the class in which they are declared.

Which method we Cannot be override?

Can we override a static method? No, we cannot override static methods because method overriding is based on dynamic binding at runtime and the static methods are bonded using static binding at compile time. So, we cannot override static methods.

Can private class be extended?

Well, it certainly can! That doesn't mean it should. Java allows it as extension so it's a nice feature when properly used.

Can I override private method in C++?

C++ has access control, but not visibility control. This means that private functions are visible but not accessible. A private virtual function can be overridden by derived classes, but can only be called from within the base class.

Can we overload main method?

Yes, we can overload the main method in Java, but When we execute the class JVM starts execution with public static void main(String[] args) method.

Are private methods final?

So, to answer question 2, yes, all compilers will treat private methods as final . The compiler will not allow any private method to be overridden. Likewise, all compilers will prevent subclasses from overriding final methods.

Can we override final method?

Any method that is declared as final in the superclass cannot be overridden by a subclass.

Can we override constructor in Java?

It does not have a return type and its name is same as the class name. But, a constructor cannot be overridden. If you try to write a super class's constructor in the sub class compiler treats it as a method and expects a return type and generates a compile time error.

Can we overload final method in Java?

yes overloading final method is possible in java.As final methods are restricted not to override the methods. while overloading argument list must be different type of the overloading method.

Can we declare constructor as private?

Yes, we can declare a constructor as private. If we declare a constructor as private we are not able to create an object of a class. We can use this private constructor in the Singleton Design Pattern.

Can abstract method be private?

If a method of a class is private, you cannot access it outside the current class, not even from the child classes of it. But, incase of an abstract method, you cannot use it from the same class, you need to override it from subclass and use. Therefore, the abstract method cannot be private.

Can we write private method in interface?

Java 9 onwards, you can include private methods in interfaces. Before Java 9 it was not possible. In Java SE 7 or earlier versions, an interface can have only two things i.e. Constant variables and Abstract methods. These interface methods MUST be implemented by classes which choose to implement the interface.

Can we execute a class without a main method?

Yes, we can execute a java program without a main method by using a static block. Static block in Java is a group of statements that gets executed only once when the class is loaded into the memory by Java ClassLoader, It is also known as a static initialization block.

Why main () method is declared as static?

The main() method is static so that JVM can invoke it without instantiating the class. This also saves the unnecessary wastage of memory which would have been used by the object declared only for calling the main() method by the JVM.

Can we overload non static method in Java?

No, we cannot override non static method as static method in java.