CSc 110 Assignment 1: Introduction to Programming

CSc 110 Assignment 1: Introduction to Programming
How to hand it in:
Submit a file named Welcome.java through the Assignment 1 link on the CSC110 conneX site.
Learning Outcomes:
When you have completed this assignment, you should understand:
• How to design, compile, run and check a simple and complete Java program on your own.
• The effect of escape sequences on printed strings.
• How to write basic static methods.
• The flow of control (i.e. the effects of method calls and assignment statements).
• How to format and document a Java program.
Part 1 – Ascii Art
Write a set of methods that will output an ascii totem pole. Your implementation must include the
three following static methods: printTotemPole, printFrog and printPig. You are free to
introduce other methods if you would like but these three must be present and must be named
EXACTLY as stated here.
Breaking    down    the    steps
(see step    5    for    what    final    output    should    look    like)
1. Create a public class Welcome
a. Write the code for your class in your chosen editor
b. Save this file as Welcome.java
c. Compile this file in your terminal
i. javac Welcome.java
d. Repeat steps a through c until no errors are outputted to the console
2. Add a main method to your Welcome class in your editor
a. Add the main method
b. Add to your main method:
a println statement that prints Welcome followed by an empty line to the console
c. Compile in your terminal
i. javac Welcome.java
d. Run the program from your terminal
i. java Welcome
e. Repeat these steps until your output looks like the following…
3. Write and test the printPig method
a. Write the code for this static method
b. Call this static method from your main
c. Compile your program
d. Run your program
e. Repeat these steps until your output looks like the following…
f. Remove or comment out the call to this static method in your main method
4. Write and test the printFrog method
a. Write the code for this static method
b. Call this static method from your main
c. Compile your program
d. Run your program
e. Repeat these steps until your output looks like the following…
f. Remove or comment out the call to this static method in your main method
5. Write and test the printTotemPole method
a. Write the code for this static method
i. You will be calling the previous two methods you wrote
ii. Don’t forget the spacer lines that are printed between each character!
b. Call this static method from your main
c. Compile your program
d. Run your program
e. Repeat these steps until your output looks like the following…
NOTE: these ascii art figures looks best when your terminal uses a Courier font (ie.
monospaced). Each character is composed of characters that include the: period, equal sign,
double quote, forwardslash, backslash, ^, ( , ), an underscore and more!
Part II – Math Calculations
Write a method to calculate the surface area of a cylinder given the height of the cylinder is 5m and
the diameter is 4m (diagram shown below).
Ensure you adhere to the method specifications described below:
Breaking    down    the    steps
1. Write a method called calcSurfaceArea that will calculate and print out the surface area
of the cylinder to the console. Your method should use the following algorithm.
a. Create 2 variables, one for height and set it to 5 and another for diameter and set
it to 4.
b. Using the diameter and the value of Π, write a statement to calculate the
circumference of the cylinder and store the result to a variable that you create.
c. Using the diameter and the value of Π, write a statement to calculate the area of
the top of the cylinder and store the result to a variable.
d. Using the height and the circumference you calculated earlier, write a statement to
calculate the area of the walls of the cylinder.
e. Using the 2 variables created above that are storing the area of the top and the area
of the walls, write the lines of code to calculate the total surface area of the cylinder.
Print the result to the console. Don’t forget – the cylinder has a top and a bottom J
2. Call this method from your main after you print your totem pole.
Additional Notes:
• There are other algorithms to calculate the surface area of a cylinder but we are
asking you to follow this algorithm to give you practice with the creation and use
of variables.
• chose a primitive type for your variables carefully in order to get a precise
answer…
• for the value of Π, you are free to: hard code this value, create a constant for PI,
use the PI constant in java’s Math library
• chose the names of your variables carefully so they have meaning and make it
easier for someone reading your code to understand what the code is doing
• Challenge! Format your output so that only 2 decimal places are printed.
3. Write, compile and run your program until your output looks like that on the following page…
Grading:
Marks will be allocated for the following…
• Your code must compile and run.
• Your code should produce the output exactly as requested.
• Your code must be indented and documented appropriately. Please follow the guidelines in
Style_Guidelines.pdf, available in the Resources folder on conneX.