Summary

The purpose of this assignment is to construct two separate Java programs that produce three distinct

levels or boards similar to those found in the Super Mario Brothers brand of games. These Java

programs will rely on method calls to reduce redundancy in your software. Additionally, you will get to

know the website tools and submission procedure to use for future homework.

Work Items

$(1)$ In lab, you should have already installed the Java JDK and the BlueJ IDE on your home computer.

If you have not yet done so$,$ please do so$,$ as you will need both in order to do this homework.

$($If you don$$t want to use BlueJ, you don$$t have to; feel free to use any programming

environment you wish. But I$$ll be using BlueJ much of the time in lecture.$)$

$(2)$ Draw a flow chart of your second program $($On Page #$5).$ That is to say, create a flow chart of

only the contents of the runProgramTwo method $($as named below in item $3$d$).$ You can treat

methods called in the runProgramTwo method as black boxes $($i$.$e$.,$ you don$$t have to draw

flow charts for those $$sub$-$methods$).$ Submit the image file of a scan of this flow chart:

a$.$ The chart may be handwritten and can be more than one page. Please make it legible.

b$.$ Your image file can be PDF$,$ JPG$,$ TIF, or PNG$.$

c$.$ Please submit only one image file via Canvas. Do not email your instructor your work.

d$.$ Name your file LastFirst$\_$HW$\_$Methods.pdf $($or whatever is the extension for the graphic

format you$$re using$),$ where you put in your own last name and first name for $$Last$$ and

$$First$.$ You must name your file this way.

$(3)$ Write the two programs described below. Submit the single Java file $($i$.$e$.,.$java$$ text file$)$ that

contains your two programs:

a$.$ Please submit only a single Java file via Canvas $($below I describe how you put two

programs into one file$).$ Do not email your instructor your work.

b$.$ Name your Java file LastName$\_$FirstInitial$\_$HW$\_$Methods.java, where you put in your

own last name and first name for $$Last$$ and $$First$.$ You must name your file this way.

c$.$ Note that by requiring you name your Java file LastFirst$\_$HW$\_$Methods.java, it means

that the public class that is in that file has to be named LastFirst$\_$HW$\_$Methods $($again$,$

substituting your own name as appropriate$).$ Note, in general you wouldn$$t put your

name in the class name $($and thus filename$),$ but in this course, it will simplify things for

the grader.

d$.$ Each of your programs should be called by a method. Those methods should be written

in the same class as your program. Your Java file should have a main method that calls

these two methods. You probably will have a main method that looks like this:

Homework: Methods CSS$142$: Computer Programming I

CSS$,$ University of Washington, Bothell $2$

public static void main$($String$[]$ args$)$

$\{$

runProgramOne$()$;

runProgramTwo$()$;

$\}$

Context

Let$$s consider how we might represent a level from the game Super Mario Bros using just the symbols

on a keyboard. Specifically, look at the level design for the first board, and let$$s see if we can recreate

some of the patterns we observe below.

$(1)$ We could model the ground with a minus sign, equal sign, or an underscore:

$===================================================================$

$(2)$ Next we could add some $?$ boxes to our level $($some of the coin and powerup boxes seen

between the bricks in the beginning of the level$)$ along with bricks $($denoted by the $|$ sign$)$:

$|?|$

$|||||||||||||$

$|||?|||?||||||?|||$

$======================================================================================$

$(3)$ To make our task simpler here, we$$re going to rotate our perspective $90$ degrees so that we view

the board $$top$-$down$$ instead of $$left$-$to$-$right$.$ Just think of this as an exercise in changing your

culturally adopted reading style. Some cultures read left$-$to$-$right as you are doing now, and

some read top$-$to$-$bottom; can you think of any languages that are represented differently than

this? Either way let$$s $....$

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Homework: Methods CSS$142$: Computer Programming I

CSS$,$ University of Washington, Bothell $3$

Introduction

Your task is to write a program that outputs two distinct levels or boards from a Mario game. Your level

will be constructed from multiple smaller segments that you will $$string together$$ by calling the correct

functions from your main function $($remember$,$ the terms $$method$$ and $$function$,$ for our purposes,

are interchangeable$).$ Here is an example Mario level $($note that some parts of the board are duplicates

$$ use methods for all segments to avoid duplicate code$)$:

$||$

$||$

$||$

$||$

$||//$segment$1$

$||$

$||$

$|||?|$

$||$

$||//$segment$2$

$|||?|$

$||$

$||$

$||||$

$||||||$

$||||||||$

$||||||||||//$segment$3$

$||||||||||||$

$||$

$||^$

$|----------------$

Note that by changing our perspective, the $|$ character now represents the $$ground$$ while the hyphen

represents vertical towers or other vertical structures $($that are not the ground$).$ The text that kind of

hovers in the air, e$.$g$.,//$segment$2,$ are comment lines that indicate the portion to the left can be

thought of as a unit or chunk o