- Can we override main method?
- Can constructor be private?
- What happens if we override final method?
- Can we overload private and final methods?
- What does it mean to override a method?
- Can we inherit final method?
- Why we Cannot override static method?
- Are private methods final?
- Can final method be overridden?
- Can we declare a constructor final?
- What is the difference between static and final?
Can we override main method?
No, we cannot override main method of java because a static method cannot be overridden.
The static method in java is associated with class whereas the non-static method is associated with an object..
Can constructor be 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.
What happens if we override final method?
The final method can’t be overridden. A final method declared in the Parent class cannot be overridden by a child class. If we try to override the final method, the compiler will throw an exception at compile time.
Can we overload private and final methods?
private and final methods can be overloaded but they cannot be overridden. It means a class can have more than one private/final methods of same name but a child class cannot override the private/final methods of their base class. … Argument list should be different while doing method overloading.
What does it mean to override a method?
Method overriding, in object-oriented programming, is a language feature that allows a subclass or child class to provide a specific implementation of a method that is already provided by one of its superclasses or parent classes. … Some languages allow a programmer to prevent a method from being overridden.
Can we inherit final method?
No, we cannot override a final method in Java. The final modifier for finalizing the implementations of classes, methods, and variables. We can declare a method as final, once you declare a method final it cannot be overridden.
Why we Cannot override static method?
Static methods cannot be overridden because they are not dispatched on the object instance at runtime. The compiler decides which method gets called. Static methods can be overloaded (meaning that you can have the same method name for several methods as long as they have different parameter types).
Are private methods final?
When we use final specifier with a method, the method cannot be overridden in any of the inheriting classes. Methods are made final due to design reasons. Since private methods are inaccessible, they are implicitly final in Java.
Can final method be overridden?
A final method in a superclass cannot be overridden in a subclass—this guarantees that the final method implementation will be used by all direct and indirect subclasses in the hierarchy. Methods that are declared private are implicitly final , because it’s not possible to override them in a subclass.
Can we declare a constructor final?
No, a constructor can’t be made final. A final method cannot be overridden by any subclasses. As mentioned previously, the final modifier prevents a method from being modified in a subclass.
What is the difference between static and final?
static means there is only one copy of the variable in memory shared by all instances of the class. The final keyword just means the value can’t be changed. Without final , any object can change the value of the variable.