Can we declare constructor as a final?

Can we declare constructor as a final?

Can we declare constructor as a final?

Constructors are used to initialize an object. ... It is syntactically similar to a method but it has the same name as its class and a constructor does not have a return type. Java constructor can not be final. One of the important property of java constructor is that it can not be final.

Can we declare constructor?

declaring constructor as final In other words, constructors cannot be inherited in Java, therefore, you cannot override constructors. So, writing final before constructors make no sense. Therefore, java does not allow final keyword before a constructor.

Can we declare interface as final?

Making an interface final. If you make a method final you cannot override it and, if you make a variable final you cannot modify it. ... 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.

Can we execute a program without main?

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.

Can constructor be overridden?

Constructors are not normal methods and they cannot be "overridden". Saying that a constructor can be overridden would imply that a superclass constructor would be visible and could be called to create an instance of a subclass.

Can we declare list as final?

You're right that declaring the list final means that you cannot reassign the list variable to another object. ... final as you know means that you cannot reassign the list variable another value.

Why are Constructors never declared as final in Java?

No Constructors can NEVER be declared as final. Your compiler will always give an error of the type "modifier final not allowed" Final, when applied to methods, means that the method cannot be overridden in a subclass. Constructors are NOT ordinary methods. (different rules apply) Additionally, Constructors are NEVER inherited.

Can a constructor be declared in a subclass?

No Constructors can NEVER be declared final. Final, when applied to methods, means that the method cannot be overridden in a subclass. Constructors are NOT ordinary methods. (different rules apply) Additionally, Constructors are NEVER inherited.

Can a constructor be declared as a MODIFER?

No Constructors can NEVER be declared final. Your compiler will always give an error of the type "modifer final not allowed". Final, when applied to methods, means that the method cannot be overridden in a subclass. Constructors are NOT ordinary methods.

What's the difference between a constructor and a final?

final is used for fixing , avoid overriding and inheriting. Constructor cannot be final, because it can’t be inherited/overridden. static is used for memory management, it means same variable or method will be shared between all instances of a class.


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