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CS1 Course Site
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Programming Challenge Archive
Program Potpouri
Shapes Tasks
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This program was featured in the lab devoted to our experiences with the blue.shapes package.
JavaApplication --
Shapes Tasks
// General Information
// --------------------------------------------------
// File: ShapesTasksApp.java
// Type: java application file
// Date: Tue Oct 14, 1997
// Name: blue
// Line: Support for "Scripting with Shapes" Lab
// Application Description
// --------------------------------------------------
/*
Support for "Scripting with Shapes" Lab
*/
// Required Packages
// --------------------------------------------------
import blue.io.*;
import blue.shapes.*;
// Application Class
// --------------------------------------------------
class ShapesTasksApp
{
static public void main (String args[])
{
// Read some numbers
double squareSide = IO.read_double();
double height = IO.read_double();
double width = IO.read_double();
double same = IO.read_double();
double diff = IO.read_double();
int degree = IO.read_int();
double polySide = IO.read_double();
// Establish shapes bindings
Square s = new Square(squareSide);
Rectangle r = new Rectangle(height, width);
Triangle t = new Triangle(same, same, diff);
Polygon p = new Polygon(degree, polySide);
// Establish shapes bindings
s.describe();
r.describe();
t.describe();
p.describe();
// Display the number of sides of the polygon
IO.print("The polygon has degree: ");
IO.print(p.degree());
IO.println();
// Display the distance between far corners
IO.print("The distance is ");
IO.print(r.diagonal());
IO.println();
// Display the area of a pyramid
double sa = (t.area() * 4) + s.area();
IO.print("The surface area is ");
IO.print(sa);
IO.println();
// Display the area of the scrap
Circle scrap = s.circumscribingCircle();
IO.print("The area of the scrap is ");
IO.print(scrap.area() - s.area());
IO.println();
// Display the area of a polygon
IO.print("The area of the polygon is ");
int newDeg = p.degree() * 2;
double newSide = p.side()/2.0;
Polygon newP = new Polygon(newDeg, newSide);
IO.print(newP.area());
IO.println();
}
}
// Demo
// --------------------------------------------------
/*
$ java ShapesTasksApp <ShapesTasksApp.data
|> Square with SIDE=14.0 <|
|> Rectangle with HEIGHT=2.5 WIDTH=7.99 <|
|> Triangle with SIDEA=29.5 SIDEB= 29.5 SIDEC= 14.0 <|
|> Polygon with DEGREE=8 SIDE= 12.6 <|
The polygon has degree: 8
The distance is 8.371983038683249
The surface area is 998.4088733307976
The area of the scrap is 111.8760800517997
The area of the polygon is 798.1404177698992
$
*/
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