cmsc 104, version 9/01 1 the box problem: write an interactive program to compute and display the...
TRANSCRIPT
CMSC 104, Version 9/011
The Box
Problem: Write an interactive program to compute and display the volume and surface area of a box. The program must also display the box dimensions. Error checking should be done to be sure that all box dimensions are greater than zero.
CMSC 104, Version 9/012
The Box - Inputs and Outputs
• Inputs:o heighto widtho depth
• Outputso volumeo surface areao heighto widtho depth
CMSC 104, Version 9/013
The Box - Rough Algorithm
Get the height from the user, performing error checking
Get the width from the user, performing error checking
Get the depth from the user, performing error checking
Compute the volume of the box
Compute the surface area of the box
Display the height, width, depth, volume, and surface area of the box
CMSC 104, Version 9/014
The Box - Final Pseudocode
Display “Enter the height: “
Read <height>
While (<height> <= 0 )
Display “The height must be > 0”
Display “Enter the height: “
Read <height>
End_while
CMSC 104, Version 9/015
The Box - Final Pseudocode (con’t)
Display “Enter the width: “
Read <width>
While (<width> <= 0 )
Display “The width must be > 0”
Display “Enter the width: “
Read <width>
End_while
CMSC 104, Version 9/016
The Box - Final Pseudocode (con’t)
Display “Enter the depth: “
Read <depth>
While (<depth> <= 0 )
Display “The depth must be > 0”
Display “Enter the depth: “
Read <depth>
End_while
CMSC 104, Version 9/017
The Box - Final Pseudocode (con’t)
<volume> = <height> X <width> X <depth>
<surface1> = <height> X <width>
<surface2> = <width> X <depth>
<surface3> = <height> X <depth>
<surface area> = 2 X (<surface1> + <surface2>
+ <surface3>)
CMSC 104, Version 9/018
The Box - Final Pseudocode (con’t)
Display “Height = “, <height>
Display “Width = “, <width>
Display “Depth = “, <depth>
Display “Volume = “, <volume>
Display “Surface Area = “, <surface area>
CMSC 104, Version 9/019
Drawing a Rectangle
Problem: Write an interactive program that will draw a solid rectangle of asterisks (*). The program must also display the dimensions of the rectangle. Error checking must be done to be sure that the dimensions are greater than zero.
CMSC 104, Version 9/0110
The Rectangle - Inputs and Outputs
• Inputso heighto width
• Outputso heighto widtho the drawing of the rectangle
CMSC 104, Version 9/0111
The Rectangle - Rough Algorithm
Get the height from the user, performing error checking
Get the width from the user, performing error checking
Display the height and width
Draw the rectangle
CMSC 104, Version 9/0112
The Rectangle - Final Pseudocode
Display “Enter the height: “
Read <height>
While (<height> <= 0 )
Display “The height must be > 0”
Display “Enter the height: “
Read <height>
End_while
CMSC 104, Version 9/0113
The Rectangle - Final Pseudocode (con’t)
Display “Enter the width: “
Read <width>
While (<width> <= 0 )
Display “The width must be > 0”
Display “Enter the width: “
Read <width>
End_while
CMSC 104, Version 9/0114
The Rectangle - Final Pseudocode (con’t)
Display “Height = “, <height>
Display “Width = “, <width>
Skip a line
CMSC 104, Version 9/0115
The Rectangle - Final Pseudocode (con’t)
<height counter> = 1
While ( <height counter> <= <height> )
<width counter> = 1
While ( <width counter> <= <width> )
Display “*”
<width counter> = <width counter> + 1
End_while
Place cursor on next line
<height counter> = <height counter> + 1
End_while