Will the below code will execute successfully ?abstract class Shape{ private abstract int calcArea();}Select one:TrueFalse
Question
Will the below code will execute successfully ?
abstract class Shape{
private abstract int calcArea();
}
Select one:
- True
- False
Solution
Break Down the Problem
- Identify the nature of the code given.
- Understand the concepts related to abstract classes and methods in programming languages like Java.
- Determine the validity of the syntax and semantics of the code provided.
Relevant Concepts
- An abstract class is a class that cannot be instantiated and may contain abstract methods, which do not have a body.
- Abstract methods must be implemented in subclasses.
- The
private
access modifier means that the method cannot be accessed outside of its own class.
Analysis and Detail
- The
Shape
class is declared as abstract, which is correct. - The method
calcArea
is also declared as abstract, but it has been marked asprivate
. This creates a problem since private methods in an abstract class cannot be overridden by subclasses because they are not accessible. - Therefore, this code will result in a compilation error due to the combination of an abstract method being private.
Verify and Summarize
Upon analyzing the properties of abstract classes and methods, it is evident that a private abstract method is not valid in any context, leading to the conclusion that the code will not execute successfully.
Final Answer
False - The code will not execute successfully due to the private abstract method.
Similar Questions
Which of these can be used to fully abstract a class from its implementation?Answer choicesSelect an optionObjectsAbstractInterfacesNone of the Mentioned
Select the correct answerWhich doesn’t have a body?OptionsInterfaceClass MethodAbstract Method
Select the correct answerWhich of the following does not have a body?OptionsAn InterfaceA ClassAn Abstract MethodNone of the mentioned
An abstract datatype is a data type that is not known to the programmer A. True B. False
A concrete class is a class from which instances (or objects) can be created.True or False?Select one:TrueFalse
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