Question: Create an interface IShape with a method calculateArea ( ) . Create a class called Triangle, which implements the IShape. Create a test class with

Create an interface IShape with a method calculateArea

() .

Create a class called Triangle, which implements the IShape. Create a test class with a main method. In the main method: create list which stores instances of IShape. Add to the list few instances of Triangle. Add to the list two anonymous classes instances for Circle and Square shapes.

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