Shape Classes Design classes Square, RightTriangle , and Triangle that encapsulate three geometric shapes. Each class should implement a method void draw (int x, int y) that “draws" a square, a right triangle, or an equilateral triangle (a triangle with three equal sides), respectively. See Figure 2. The parameters x and y specify the relative position of the figure: y lines down and x spaces across from the current position of the screen cursor. The instance variables of each class are: int rows , the number of rows that comprise the figure, and char character , the keyboard character used for drawing the figure. Each shape of Figure 2 consists of five rows. The drawing characters are ** for the square, %' for the right triangle, and #' for the equilateral triangle. Shape (abstract) int rows char character Shape() Shape(int x, char c) int get rows() char getCharacter() void setRows(int x) void setCharacter(int x) void draw(int x, int y) (abstract) Square() Square(int x, char ch) void draw(int x, int y) RightTriangle() RightTriangle(int x, char ch) void draw(int x, int y) Triangle() Triangle(int x, char ch) void draw(int x, int y) Square RightTriangle Triangle Figure 2: Shape Hierarchy Requirement: a. Provide an implementation of the classes. b. Create a TestShape class that will allow the Shape class to polymorph to the subclasses. Call the constructo method and draw the corresponding shape by calling the draw method.
Shape Classes Design classes Square, RightTriangle , and Triangle that encapsulate three geometric shapes. Each class should implement a method void draw (int x, int y) that “draws" a square, a right triangle, or an equilateral triangle (a triangle with three equal sides), respectively. See Figure 2. The parameters x and y specify the relative position of the figure: y lines down and x spaces across from the current position of the screen cursor. The instance variables of each class are: int rows , the number of rows that comprise the figure, and char character , the keyboard character used for drawing the figure. Each shape of Figure 2 consists of five rows. The drawing characters are ** for the square, %' for the right triangle, and #' for the equilateral triangle. Shape (abstract) int rows char character Shape() Shape(int x, char c) int get rows() char getCharacter() void setRows(int x) void setCharacter(int x) void draw(int x, int y) (abstract) Square() Square(int x, char ch) void draw(int x, int y) RightTriangle() RightTriangle(int x, char ch) void draw(int x, int y) Triangle() Triangle(int x, char ch) void draw(int x, int y) Square RightTriangle Triangle Figure 2: Shape Hierarchy Requirement: a. Provide an implementation of the classes. b. Create a TestShape class that will allow the Shape class to polymorph to the subclasses. Call the constructo method and draw the corresponding shape by calling the draw method.
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
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Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Transcribed Image Text:Shape Classes
Design classes Square, RightTriangle , and Triangle that encapsulate three geometric shapes. Each class should
implement a method
void draw (int x, int y)
that “draws" a square, a right triangle, or an equilateral triangle (a triangle with three equal sides), respectively.
See Figure 2. The parameters x and y specify the relative position of the figure: y lines down and x spaces acro
from the current position of the screen cursor. The instance variables of each class are:
int rows , the number of rows that comprise the figure,
and
char character , the keyboard character used for drawing the figure.
Each shape of Figure 2 consists of five rows. The drawing characters are *** for the square, %' for the right
triangle, and #' for the equilateral triangle.
Shape (abstract)
int rows
char character
Shape()
Shape(int x, char c)
int get rows()
char getCharacter()
void setRows(int x)
void setCharacter(int x)
void draw(int x, int y) (abstract)
Square()
Square(int x, char ch)
void draw(int x, int y)
RightTriangle()
RightTriangle(int x, char ch)
void draw(int x, int y)
Triangle()
Triangle(int x, char ch)
void draw(int x, int y)
Square
RightTriangle
Triangle
Figure 2: Shape Hierarchy
Requirement:
a. Provide an implementation of the classes.
b. Create a TestShape class that will allow the Shape class to polymorph to the subclasses. Call the constructor
method and draw the corresponding shape by calling the draw method.
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