Answer to Question #54253 in Java | JSP | JSF for Nicholas

Question #54253
Each class must have private instance fields that store the specific shapes dimensions. Each class must have a constructor that supplies the dimensions. Each class must have an area() function. Each class must have a toString() function that returns strings like these, as appropriate: ∗ triangle (base = 1.00, height = 2.00) ∗ rectangle (width = 1.00, height = 1.00) ∗ square (side = 1.00) ∗ circle (radius = 1.00) All numbers are rounded to two decimal places. Write a Main class that works like this: $ java Main ?triangle 1.0 2.0 Area of triangle (base = 1.00, height = 2.00) = 1.00 ? rectangle 1.0 2.0 Area of rectangle (width = 1.00, height = 2.00) = 2.00 ? square 1.0 Area of square (side = 1.00) = 1.00 ? circle 1.0 Area of circle (radius = 1.00) = 3.14 ? quit $ It does not need to handle bad user input. Hint: Your Main class will be simpler if you exploit inclusion polymorphism. Have a single variable of type Shape, instead of many variables with different types.
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Comments

Assignment Expert
28.08.15, 18:25

Dear Nick, please pay attention to the code structure: there are 6 separate java files in the project (TestShape.java, Circle.java, Rectangle.java, Shape.java, Square.java and Triangle.java). When you place the code in each file, please type in the command line
$ javac *.java
$ java TestShape

Nick
28.08.15, 08:33

This doesn't work for me. Am I missing something?

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