Yes it is overloading , This overloading is happening in case of the class ‘ C ‘ which is extending P and hence having two methods with the same nam e but different parameters leading to overloading of method hello() in Class C .
Can overloaded methods have different return types?
No method overloading is not possible in case of different return type, because compiler can’t figure that which method he need to call.. In this case compiler will never know which method to be invoked.
Can we overload method in subclass in Java?
Note: In a subclass, you can overload the methods inherited from the superclass. Such overloaded methods neither hide nor override the superclass instance methods—they are new methods, unique to the subclass.
Can I overload main method with different types?
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.Is it possible to have two methods in a class with same method signature but different return types?
You can not define more than one method with the same name, Order and the type of the arguments. It would be a compiler error. The compiler does not consider the return type while differentiating the overloaded method. But you cannot declare two methods with the same signature and different return type.
Can we have 2 main methods in Java class?
Yes, you can have as many main methods as you like. You can have main methods with different signatures from main(String[]) which is called overloading, and the JVM will ignore those main methods. You can have one public static void main(String[] args) method in each class.
Can we overload method with different return type C++?
Function overloading and return type in C++ The definition of the function must differ from each other by the types and/or the number of arguments in the argument list. You cannot overload function declarations that differ only by return type. … Same function signature with different return type will not be overloaded.
Can we override main method in C++?
To overcome the main() function, we can use them as class member. The main is not a restricted keyword like C in C++.Can we execute a class without a main method?
Yes You can compile and execute without main method By using static block.
Can static methods be overwritten?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.
Article first time published onCan a class have multiple constructors?
The technique of having two (or more) constructors in a class is known as constructor overloading. A class can have multiple constructors that differ in the number and/or type of their parameters. It’s not, however, possible to have two constructors with the exact same parameters.
Can we 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.
Can overloaded methods have different access modifiers?
Using the same method name but with different arguments is called overloading. … Overloaded Methods may have different access modifiers. Overloaded Methods may throw different exception broader or narrow no restriction. Methods from the superclass can also be overloaded in a subclass.
Can 2 methods have the same name?
Having two or more methods named the same in the same class is called overloading. … Two methods may share the same name, provided the number of parameters are different, or if they both have the same parameters, then there is at least one position, i where the parameter types differ.
Is it possible to use both overloading and overriding in the same method explain?
Yes it is possible, you can overload and override a function in the same class but you would not be able to overload a function in two different classes as it is logically not possible.
Can we have different return type in method overriding in C#?
You cannot change the return type of method during overriding.
Can you define two methods that have same name but different parameter types?
Method overloading. … The practice of defining two or more methods within the same class that share the same name but have different parameters is called overloading methods.
Can we use multiple main methods in multiple classes?
A class can define multiple methods with the name main. The signature of these methods does not match the signature of the main method. These other methods with different signatures are not considered the “main” method. Yes it is possible to have two main() in the same program.
Can abstract classes instantiated?
Abstract classes cannot be instantiated, but they can be subclassed. When an abstract class is subclassed, the subclass usually provides implementations for all of the abstract methods in its parent class. However, if it does not, then the subclass must also be declared abstract .
Can abstract classes have static methods?
Yes, of course you can define the static method in abstract class. you can call that static method by using abstract class,or by using child class who extends the abstract class. Also you can able to call static method through child class instance/object.
Can we declare main method as final?
The short answer is Yes. You can declare main method as final. without any compile error.
Can we execute program without main in C?
So actually C program can never run without a main() . We are just disguising the main() with the preprocessor, but actually there exists a hidden main function in the program.
How we can execute any code even before main method?
One of the options is to use static function as initializer to static variable. Print the statement inside a static block of code. Static blocks get executed when the class gets loaded into the memory and even before the creation of an object. Hence it will be executed before the main() method.
Can we have 2 main methods in C++?
No, you can’t have two main functions in c/c++ . For a compiler to start execution requires link to only one default function at a time which is by default the main function itself.
Can we overload main method What happens when overloaded?
Yes, you can overload main method in Java. But the program doesn’t execute the overloaded main method when you run your program, you have to call the overloaded main method from the actual main method. that means main method acts as an entry point for the java interpreter to start the execute of the application.
Can we overload a main function?
The answer is, yes, we can overload the main() method. But remember that the JVM always calls the original main() method. It does not call the overloaded main() method.
Can we override static method in child class?
Can we Override static methods in java? We can declare static methods with the same signature in the subclass, but it is not considered overriding as there won’t be any run-time polymorphism. Hence the answer is ‘No’.
Can we override final method?
Can We Override a Final Method? No, the Methods that are declared as final cannot be Overridden or hidden. For this very reason, a method must be declared as final only when we’re sure that it is complete.
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.
Which three can vary in overloaded methods?
As discussed in the beginning of this guide, method overloading is done by declaring same method with different parameters. The parameters must be different in either of these: number, sequence or types of parameters (or arguments).
Can we overload constructor in derived class?
Since the constructors can’t be defined in derived class, it can’t be overloaded too, in derived class. … Explanation: The constructors doesn’t have any return type. When we can’t have return type of a constructor, overloading based on the return type is not possible. Hence only parameters can be different.
