Abstract Shape with Circle

An abstract class Shape is provided with an abstract method double area(). Complete the Circle class that extends Shape.

Requirements:
1. Store the radius passed to the constructor.
2. Implement area() to return Math.PI * radius * radius.

Do NOT write a main method.

Expected Output:

78.54↵

= newline. The output ends with a newline — print one after the last line.

Hints2 available

Topics:

Abstract ClassesClasses

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