Can We Override Static Method?

Can we override Static block?

1) For class (or static) methods, the method according to the type of reference is called, not according to the object being referred, which means method call is decided at compile time.

3) An instance method cannot override a static method, and a static method cannot hide an instance method..

Can we override final method?

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 static are also implicitly final . …

Can we override constructor?

Constructor Overriding is never possible in Java. This is because, Constructor looks like a method but name should be as class name and no return value. Overriding means what we have declared in Super class, that exactly we have to declare in Sub class it is called Overriding.

When would you use a static block?

Static block is used for initializing the static variables. This block gets executed when the class is loaded in the memory. A class can have multiple Static blocks, which will execute in the same sequence in which they have been written into the program.

Can we inherit static class?

Creating a static class is therefore basically the same as creating a class that contains only static members and a private constructor. … Static classes are sealed and therefore cannot be inherited. They cannot inherit from any class except Object. Static classes cannot contain an instance constructor.

Can static method be inherited?

Static methods in Java are inherited, but can not be overridden. If you declare the same method in a subclass, you hide the superclass method instead of overriding it. … Static method is inherited in subclass but it is not polymorphism.

What is method hiding?

Method hiding means subclass has defined a class method with the same signature as a class method in the superclass. In that case the method of superclass is hidden by the subclass. It signifies that : The version of a method that is executed will NOT be determined by the object that is used to invoke it.

What will happen if we override static method in Java?

The answer is, No, you can not override static method in Java, though you can declare a method with the same signature in a subclass. … As per Java coding convention, static methods should be accessed by class name rather than an object. In short, a static method can be overloaded, but can not be overridden in Java.

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.

Can final static method be overloaded?

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 we override private method?

No, a private method cannot be overridden since it is not visible from any other class. You have declared a new method for your subclass that has no relation to the superclass method. One way to look at it is to ask yourself whether it would be legal to write super. func() in the Derived class.

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.

Can we execute a class without a main method?

Yes You can compile and execute without main method By using static block. But after static block executed (printed) you will get an error saying no main method found. And Latest INFO –> YOU cant Do this with JAVA 7 version.

Can we override main method?

The short answer to, can we overload the main method in Java is Yes, you can overloading, nothing stops from overloading, but JVM will always call the original main method, it will never call your overloaded main method. … the answer is No because main is a static method and static method cannot be overridden in Java.

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 we inherit private method in Java?

Yes. A java private member cannot be inherited as it is available only to the declared java class. Since the private members cannot be inherited, there is no place for discussion on java runtime overloading or java overriding (polymorphism) features.

Can abstract class have constructor?

Yes, Abstract Classes can have constructors ! Abstract class can have a constructor though it cannot be instantiated. But the constructor defined in an abstract class can be used for instantiation of concrete class of this abstract class.