Select the correct answerWhich of the following does not have a body?OptionsAn InterfaceA ClassAn Abstract MethodNone of the mentioned
Question
Select the correct answer
Which of the following does not have a body?
Options
- An Interface
- A Class
- An Abstract Method
- None of the mentioned
Solution
The correct answer is "An Abstract Method".
Here's why:
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An Interface: In programming, an interface is a reference type, similar to a class, that can contain only constants, method signatures, default methods, static methods, and nested types. It doesn't have a body in the sense of fields or constructors like a class, but it does have a structure or "body" in terms of its method signatures.
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A Class: In object-oriented programming, a class is a blueprint for creating objects (a particular data structure), providing initial values for state (member variables or attributes), and implementations of behavior (member functions or methods). So, a class definitely has a body.
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An Abstract Method: An abstract method is a method that has a declaration but does not have an implementation - i.e., it does not have a body. In Java, for example, you would declare an abstract method in an abstract class or an interface by using the 'abstract' keyword and not providing a method body.
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None of the mentioned: This option would be correct if all of the other options had a body, but as we've seen, an abstract method does not have a body.
So, the correct answer is "An Abstract Method".
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