Question: What Happens When We Override A Static Method?

Can final method be overloaded?

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..

Why is main method static?

Java main() method is always static, so that compiler can call it without the creation of an object or before the creation of an object of the class. In any Java program, the main() method is the starting point from where compiler starts program execution. So, the compiler needs to call the main() method.

Can we override private method in Java?

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 is difference between final and static?

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.

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.

What is String [] args?

String[] args in Java is an array of strings which stores arguments passed by command line while starting a program. All the command line arguments are stored in that array. … for(String str : args) { System. out.

Can we execute a program without main?

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.

What happens if we override 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. … If we call a static method by using the parent class object, the original static method will be called from the parent class.

What is method hiding?

Java 8Object Oriented ProgrammingProgramming. When super class and sub class contains same method including parameters and if they are static. The method in the super class will be hidden by the one that is in the sub class. This mechanism is known as method hiding.

What is C++ hiding method?

In Method Hiding, you can hide the implementation of the methods of a base class from the derived class using the new keyword. Or in other words, in method hiding, you can redefine the method of the base class in the derived class by using the new keyword.

Which method hides a method in the superclass?

When writing a method that has the same name as a method in a superclass, double check the return values and the argument lists to make sure that you are overloading or overriding as you intended. The Cat class overrides the instance method in Animal called override and hides the class method in Animal called hide .

Can you use this in a static method?

The answer is no because static method does not need any object to be called, and this keyword always point to a current object of a class. simply if there is no object then how the keyword point to any current object so,we cannot use this keyword here.

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.

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.

Is static method can be override?

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.

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 main method in Java?

Short answer is NO,we can not override main method in java. Reason is very simple.As main method is static and we know very well that we can not override static methods in Java,hence main method could not be overridden. … But as we can see in output ,in both calls ,main method of Application class is called.

Can we override protected method as private?

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.