Question: Can We Inherit Main Method In Java?

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 is String args [] in Java?

String[] args: It stores Java command line arguments and is an array of type java. lang. … Here, the name of the String array is args but it is not fixed and user can use any name in place of it.

Which method Cannot be inherited in Java?

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. A subclass in a different package can only override the non-final methods declared public or protected.

Can main method in Java be overridden?

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 main method be final?

Yes, we can declare the main () method as final in Java. The compiler does not throw any error. If we declare any method as final by placing the final keyword then that method becomes the final method. The main use of the final method in Java is they are not 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).

Can methods be inherited in Java?

In Java, it is possible to inherit attributes and methods from one class to another. We group the “inheritance concept” into two categories: subclass (child) – the class that inherits from another class. superclass (parent) – the class being inherited from.

Can we override static method?

Can we Override static methods in java? We can declare static methods with same signature in subclass, but it is not considered overriding as there won’t be any run-time polymorphism. Hence the answer is ‘No’.

Can you make a constructor final?

No, a constructor can’t be made final. A final method cannot be overridden by any subclasses. … But, in inheritance sub class inherits the members of a super class except constructors. In other words, constructors cannot be inherited in Java therefore, there is no need to write final before constructors.

Can we override constructor?

Constructor looks like method but it is not. It does not have a return type and its name is same as the class name. But, a constructor cannot be 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.

What happens if we override final method?

Any method that is declared as final in the superclass cannot be overridden by a subclass. If we try to override the final method of super class we will get an error in Java.

Can a constructor be static?

No, we cannot define a static constructor in Java, If we are trying to define a constructor with the static keyword a compile-time error will occur. In general, static means class level. A constructor will be used to assign initial values for the instance variables.

Can constructor be extended?

In Java a class can extend another class. When a class extends another class it is also said to “inherit” from the class it extends. … A class that extends another class does not inherit its constructors. However, the subclass must call a constructor in the superclass inside one of the subclass constructors!

Can a class with main method be inherited?

No,main method cannot be overrided and saying exactly there’s no need to override main method. Any member with a private access specifier cannot be used by the members of other class except the class that inherits it. Yes, a constructor can be private.