handout #3
CSE142—Computer Programming I
Programming Assignment #2
due: Tuesday,
1/20/15, 9 pm
This assignment will give you practice
with for loops, static methods, print/println
statements and a class constant. This assignment
is worth 16 points instead of the normal 20 points.
Part
A: ASCII Art (2 points):
The
first part of your assignment is to write a program that produces any text art
(sometimes called “ASCII art”) picture you like. Write a Java class called AsciiArt in a file called AsciiArt.java..
Your program can produce any text picture you like, with the following
restrictions and details:
·
The
picture should be your own creation, not an ASCII image you found on the
Internet or elsewhere.
·
The
number of lines of output should be between 3 and 200 with no more than 100
characters per line.
·
The
picture should not include hateful, offensive, or otherwise inappropriate
images.
·
The
code should use at least one for loop or static method, but should not contain
infinite loops.
·
The
picture must not be identical to your solution for Part B or consist entirely
of reused Part B code.
·
Your
code should not use material beyond chapter 3 of the book.
If your Part A program compiles and runs
successfully and meets the above constraints, it will receive the full 2 points.
Part A will not be graded on style ("internal correctness").
Part
B: Rocket Ship (14 points):
In
the second part of the
assignment, you are going to generate output that looks like the following:
/**\
//**\\
///**\\\
////**\\\\
/////**\\\\\
+=*=*=*=*=*=*+
|../\..../\..|
|./\/\../\/\.|
|/\/\/\/\/\/\|
|\/\/\/\/\/\/|
|.\/\/..\/\/.|
|..\/....\/..|
+=*=*=*=*=*=*+
|\/\/\/\/\/\/|
|.\/\/..\/\/.|
|..\/....\/..|
|../\..../\..|
|./\/\../\/\.|
|/\/\/\/\/\/\|
+=*=*=*=*=*=*+
/**\
//**\\
///**\\\
////**\\\\
/////**\\\\\
You are to exactly reproduce this
output. The various subfigures in the
middle of this output have a height of 3.
These subfigures have the property that their height determines their
width, so there is only one size variable.
You are to use a class constant to make it possible to change a single
number in one place in the program to have it produce a corresponding figure of
a different size.
This assignment is meant to give you
practice with the constructs from chapters 1 and 2. This will require you to create nested for
loops with print and println statements that use the
class constant. You may use constructs
from chapter 3, although you are not required to do so and you will receive no
extra credit for doing so. You may not
use any programming constructs that are not in chapters 1 through 3 of the
textbook.
You should continue to use static methods
to structure your solution. You should
try to avoid significant redundancy and you should structure your program in such
a way that the methods match the structure of the output itself. You are required to properly indent your code
and will lose points if you make indentation mistakes. You should localize variables whenever possible.
You should once again include a comment at
the beginning of your class file with basic information and a description of
what the program does. You should also
include a comment on each individual method describing what it does. Name your file DrawRocket.java and turn in
your program electronically through the “homework” link on the class web page.
On any given execution your program will
produce just one version of this figure, but it should be possible to change
the value of the program constant to have your program produce a figure of a
different size. For example, with
subfigures of height 5, the output should look like this:
/**\
//**\\
///**\\\
////**\\\\
/////**\\\\\
//////**\\\\\\
///////**\\\\\\\
////////**\\\\\\\\
/////////**\\\\\\\\\
+=*=*=*=*=*=*=*=*=*=*+
|..../\......../\....|
|.../\/\....../\/\...|
|../\/\/\..../\/\/\..|
|./\/\/\/\../\/\/\/\.|
|/\/\/\/\/\/\/\/\/\/\|
|\/\/\/\/\/\/\/\/\/\/|
|.\/\/\/\/..\/\/\/\/.|
|..\/\/\/....\/\/\/..|
|...\/\/......\/\/...|
|....\/........\/....|
+=*=*=*=*=*=*=*=*=*=*+
|\/\/\/\/\/\/\/\/\/\/|
|.\/\/\/\/..\/\/\/\/.|
|..\/\/\/....\/\/\/..|
|...\/\/......\/\/...|
|....\/........\/....|
|..../\......../\....|
|.../\/\....../\/\...|
|../\/\/\..../\/\/\..|
|./\/\/\/\../\/\/\/\.|
|/\/\/\/\/\/\/\/\/\/\|
+=*=*=*=*=*=*=*=*=*=*+
/**\
//**\\
///**\\\
////**\\\\
/////**\\\\\
//////**\\\\\\
///////**\\\\\\\
////////**\\\\\\\\
/////////**\\\\\\\\\