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abstract means nothing to implement its responsible of implementation its implementation class

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13y ago

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Why don't use abstract keyword when we declare a method in interface?

The abstract keyword signifies that the particular method will have no features in the class where it is declared and it is upto the child class to provide the functionality. In case of an interface, the method is already abstract by default and has no code inside it. So there is no actual point in using the abstract keyword there.


What is abstract methods?

Simply, Abstract method is a method that is declared without or containing no implementation. It has a method signature


How do you write concrete method inside abstract class?

There is no difference with method declaration and implementation between abstract and non-abstract classes. You do the exact same thing when writing a concrete method in either an abstract or non-abstract class.


How do you create a concrete method inside abstract class?

The same way you create a concrete method in a concrete class. When a class is abstract, it can contain abstract methods. That doesn't mean that all methods must be abstract. Hope this helps.


What is an abstract for a scientific experiment?

An abstract for a science experiment is a short paragraph that summarizes the purpose of the experiment (including the hypothesis), the method used to perform it, the results and the conclusions. (see related link)


Is the word method an abstract noun?

Yes, the noun method is an abstract noun, a word for a concept.


When do you declare a method or class abstract in java?

when overriding of a class or a method is necessary, they can be declared as abstract


Is Interface is a kind of abstract method?

No


Can you call an abstract method from a non abstract method in java?

We can't call (i.e, execute) an abstract method in java because these methods don't contain any code to execute!In some special cases like when an abstract method is overridden in a subclass, and when we are using super class reference variable( which is referring that subclass object), it appears that we are calling abstract method in super class. But actually the code in the subclass method is being executed.Example:abstract class SuperClass{abstract void show(); //abstract method in super class}class SubClass extends SuperClass{void show(){ //show() of SuperClass overridden in SubClassSystem.out.println("SubClass Method");}}class Example{public static void main(String... args){SuperClass sup=new SubClass();sup.show(); //SubClass show() will be executed !!!}}


Can an abstract method be declared static?

Yes. Abstract methods can be declared static


What is Abstract in science?

An abstract is a brief summary of an experiment.


Can abstract method be overriden?

An overridden method is one which has already been implemented in the parent class with the same signature but has again been coded in the current class for functionality requirements. An abstract method is one which has only been declared in a class and would have to be implemented by the class that extends this abstract class. The implementation for the method is not available in the class in which it is declared.