- What happens if we override final method?
- Can we have 2 main methods in Java?
- Why we Cannot override static method?
- Can Java run without main method?
- Can main method be final?
- Can we make static method final?
- Is delete a keyword in Java?
- Can an abstract method have a body?
- Can final method be overloaded?
- Can we call main method in Java?
- Can an interface be final?
- Can abstract class have static and final methods?
- Can a method be abstract and final?
- Can we inherit final method in Java?
- Can constructor be declared as final?
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 have 2 main methods in Java?
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.
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 Java run without main method?
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.
Can main method be final?
Yes, we can declare the main () method as final in Java. The compiler does not throw any error. … The main use of the final method in Java is they are not overridden. We can not override final methods in subclasses.
Can we make static method final?
Static methods belong to the class, not the instance. … Static methods with the same signature from the parent class are hidden when called from an instance of the subclass. However, you can’t override/hide final methods. You would think the error message would use the word hidden instead of overridden…
Is delete a keyword in Java?
There is no delete in java, and all objects are created on the heap. … Once there are no more references to an object, it becomes available for collection by the garbage collector.
Can an abstract method have a body?
Abstract methods are declaration only and it will not have implementation. It will not have a method body. A Java class containing an abstract class must be declared as abstract class. An abstract method can only set a visibility modifier, one of public or protected.
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.
Can we call main method in Java?
Though Java doesn’t prefer main() method called from somewhere else in the program, it does not prohibit one from doing it as well. So, in fact, we can call the main() method whenever and wherever we need to.
Can an interface be final?
If you make an interface final, you cannot implement its methods which defies the very purpose of the interfaces. Therefore, you cannot make an interface final in Java. Still if you try to do so, a compile time exception is generated saying “illegal combination of modifiers − interface and final”.
Can abstract class have static and final methods?
If you are talking about java, answer is Yes But you need to define the static method. You cannot create an abstract static method. … 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 a method be abstract and final?
Abstract and final methods or classes can be defined using the additions ABSTRACT and FINAL of the statements METHODS and CLASS. Abstract methods are declared in abstract classes and cannot be implemented in the same class.
Can we inherit final method in Java?
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.
Can constructor be declared as final?
No, a constructor can’t be made final. A final method cannot be overridden by any subclasses. … In other words, constructors cannot be inherited in Java therefore, there is no need to write final before constructors.