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3.5 The Rectangle class

  1. Create a new class according to the class diagram below. Use the following extra information:

    • The default value for length is 2;
    • The default value for width is 1;
    • The default value for topLeftCorner is determined by the Point class itself;
    • The default value for color = "white";
    • Use constructor chaining;
    • A rectangle is a quadrilateral with four right angles;
    • The perimeter is twice the length plus twice the width (or twice the sum of length and width);
    • The area is length times width;
    • The DescribeSize() method is identical to that of the Circle class;
    • Do not forget to add the getters and setters (properties);

  2. Test your class by running the following code in the Main method: 

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    Console.WriteLine(Rectangle.Definition());

Rectangle[] myRectangleArray = new Rectangle[3];
myRectangleArray[0] = new Rectangle(4, 3, new Point(2, 5), "blue");
myRectangleArray[1] = new Rectangle();
myRectangleArray[2] = new Rectangle(25, 10);

for (int i = 0; i < myRectangleArray.Length; i++)
{
    Console.WriteLine(myRectangleArray[i].CalculatePerimeter());
    Console.WriteLine(myRectangleArray[i].CalculateArea());
    Console.WriteLine(myRectangleArray[i].TopLeftCorner.X);
    Console.WriteLine(myRectangleArray[i].TopLeftCorner.Y);
    Console.WriteLine(myRectangleArray[i].DescribeSize());
}

  3. Your output will look like this: 

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    A rectangle is a quadrilateral with four right angles.
14.0
12.0
2.0
5.0
I am small!!!
6.0
2.0
0.0
0.0
I am small!!!
70.0
250.0
0.0
0.0
I am big!!!

  4. Try some other values and view the output.