PrizeExample.DS_Store__MACOSXPrizeExample._.DS_StoreP.docx

PrizeExample/.DS_Store
__MACOSX/PrizeExample/._.DS_Store
PrizeExample/.git/COMMIT_EDITMSG
Initial Commit
PrizeExample/.git/config
[core]
repositoryformatversion = 0
filemode = true
bare = false
logallrefupdates = true
ignorecase = true
PrizeExample/.git/description
Unnamed repository; edit this file 'description' to name the
repository.
PrizeExample/.git/HEAD
ref: refs/heads/master
PrizeExample/.git/hooks/applypatch-msg.sample
#!/bin/sh
#
# An example hook script to check the commit log message
taken by
# applypatch from an e-mail message.
#

# The hook should exit with non-zero status after issuing an
# appropriate message if it wants to stop the commit. The hook
is
# allowed to edit the commit message file.
#
# To enable this hook, rename this file to "applypatch-msg".
. git-sh-setup
test -x "$GIT_DIR/hooks/commit-msg" &&
exec "$GIT_DIR/hooks/commit-msg"
${1+"[email protected]"}
:
PrizeExample/.git/hooks/commit-msg.sample
#!/bin/sh
#
# An example hook script to check the commit log message.
# Called by "git commit" with one argument, the name of the
file
# that has the commit message. The hook should exit with non-
zero
# status after issuing an appropriate message if it wants to stop
the
# commit. The hook is allowed to edit the commit message file.
#
# To enable this hook, rename this file to "commit-msg".
# Uncomment the below to add a Signed-off-by line to the
message.
# Doing this in a hook is a bad idea in general, but the prepare-
commit-msg
# hook is more suited to it.
#
# SOB=$(git var GIT_AUTHOR_IDENT | sed -n
's/^(.*>).*$/Signed-off-by: 1/p')

# grep -qs "^$SOB" "$1" || echo "$SOB" >> "$1"
# This example catches duplicate Signed-off-by lines.
test "" = "$(grep '^Signed-off-by: ' "$1" |
sort | uniq -c | sed -e '/^[ ]*1[ ]/d')" || {
echo >&2 Duplicate Signed-off-by lines.
exit 1
}
PrizeExample/.git/hooks/post-update.sample
#!/bin/sh
#
# An example hook script to prepare a packed repository for use
over
# dumb transports.
#
# To enable this hook, rename this file to "post-update".
exec git update-server-info
PrizeExample/.git/hooks/pre-applypatch.sample
#!/bin/sh
#
# An example hook script to verify what is about to be
committed
# by applypatch from an e-mail message.
#
# The hook should exit with non-zero status after issuing an
# appropriate message if it wants to stop the commit.
#
# To enable this hook, rename this file to "pre-applypatch".
. git-sh-setup

test -x "$GIT_DIR/hooks/pre-commit" &&
exec "$GIT_DIR/hooks/pre-commit"
${1+"[email protected]"}
:
PrizeExample/.git/hooks/pre-commit.sample
#!/bin/sh
#
# An example hook script to verify what is about to be
committed.
# Called by "git commit" with no arguments. The hook should
# exit with non-zero status after issuing an appropriate message
if
# it wants to stop the commit.
#
# To enable this hook, rename this file to "pre-commit".
if git rev-parse --verify HEAD >/dev/null 2>&1
then
against=HEAD
else
# Initial commit: diff against an empty tree object
against=4b825dc642cb6eb9a060e54bf8d69288fbee4904
fi
# If you want to allow non-ascii filenames set this variable to
true.
allownonascii=$(git config hooks.allownonascii)
# Redirect output to stderr.
exec 1>&2
# Cross platform projects tend to avoid non-ascii filenames;
prevent
# them from being added to the repository. We exploit the fact

that the
# printable range starts at the space character and ends with
tilde.
if [ "$allownonascii" != "true" ] &&
# Note that the use of brackets around a tr range is ok here,
(it's
# even required, for portability to Solaris 10's /usr/bin/tr),
since
# the square bracket bytes happen to fall in the designated
range.
test $(git diff --cached --name-only --diff-filter=A -z
$against |
LC_ALL=C tr -d '[ -~]0' | wc -c) != 0
then
echo "Error: Attempt to add a non-ascii file name."
echo
echo "This can cause problems if you want to work"
echo "with people on other platforms."
echo
echo "To be portable it is advisable to rename the file ..."
echo
echo "If you know what you are doing you can disable
this"
echo "check using:"
echo
echo " git config hooks.allownonascii true"
echo
exit 1
fi
# If there are whitespace errors, print the offending file names
and fail.
exec git diff-index --check --cached $against --
PrizeExample/.git/hooks/pre-rebase.sample

#!/bin/sh
#
# Copyright (c) 2006, 2008 Junio C Hamano
#
# The "pre-rebase" hook is run just before "git rebase" starts
doing
# its job, and can prevent the command from running by exiting
with
# non-zero status.
#
# The hook is called with the following parameters:
#
# $1 -- the upstream the series was forked from.
# $2 -- the branch being rebased (or empty when rebasing the
current branch).
#
# This sample shows how to prevent topic branches that are
already
# merged to 'next' branch from getting rebased, because
allowing it
# would result in rebasing already published history.
publish=next
basebranch="$1"
if test "$#" = 2
then
topic="refs/heads/$2"
else
topic=`git symbolic-ref HEAD` ||
exit 0 ;# we do not interrupt rebasing detached HEAD
fi
case "$topic" in
refs/heads/??/*)
;;
*)

exit 0 ;# we do not interrupt others.
;;
esac
# Now we are dealing with a topic branch being rebased
# on top of master. Is it OK to rebase it?
# Does the topic really exist?
git show-ref -q "$topic" || {
echo >&2 "No such branch $topic"
exit 1
}
# Is topic fully merged to master?
not_in_master=`git rev-list --pretty=oneline ^master "$topic"`
if test -z "$not_in_master"
then
echo >&2 "$topic is fully merged to master; better remove
it."
exit 1 ;# we could allow it, but there is no point.
fi
# Is topic ever merged to next? If so you should not be rebasing
it.
only_next_1=`git rev-list ^master "^$topic" ${publish} | sort`
only_next_2=`git rev-list ^master ${publish} | sort`
if test "$only_next_1" = "$only_next_2"
then
not_in_topic=`git rev-list "^$topic" master`
if test -z "$not_in_topic"
then
echo >&2 "$topic is already up-to-date with master"
exit 1 ;# we could allow it, but there is no point.
else
exit 0
fi

else
not_in_next=`git rev-list --pretty=oneline ^${publish}
"$topic"`
/usr/bin/perl -e '
my $topic = $ARGV[0];
my $msg = "* $topic has commits already merged to
public branch:n";
my (%not_in_next) = map {
/^([0-9a-f]+) /;
($1 => 1);
} split(/n/, $ARGV[1]);
for my $elem (map {
/^([0-9a-f]+) (.*)$/;
[$1 => $2];
} split(/n/, $ARGV[2])) {
if (!exists $not_in_next{$elem->[0]}) {
if ($msg) {
print STDERR $msg;
undef $msg;
}
print STDERR " $elem->[1]n";
}
}
' "$topic" "$not_in_next" "$not_in_master"
exit 1
fi
exit 0
#####################################################
###########
This sample hook safeguards topic branches that have been
published from being rewound.
The workflow assumed here is:

* Once a topic branch forks from "master", "master" is never
merged into it again (either directly or indirectly).
* Once a topic branch is fully cooked and merged into
"master",
it is deleted. If you need to build on top of it to correct
earlier mistakes, a new topic branch is created by forking at
the tip of the "master". This is not strictly necessary, but
it makes it easier to keep your history simple.
* Whenever you need to test or publish your changes to topic
branches, merge them into "next" branch.
The script, being an example, hardcodes the publish branch
name
to be "next", but it is trivial to make it configurable via
$GIT_DIR/config mechanism.
With this workflow, you would want to know:
(1) ... if a topic branch has ever been merged to "next". Young
topic branches can have stupid mistakes you would rather
clean up before publishing, and things that have not been
merged into other branches can be easily rebased without
affecting other people. But once it is published, you would
not want to rewind it.
(2) ... if a topic branch has been fully merged to "master".
Then you can delete it. More importantly, you should not
build on top of it -- other people may already want to
change things related to the topic as patches against your
"master", so if you need further changes, it is better to
fork the topic (perhaps with the same name) afresh from the
tip of "master".

Let's look at this example:
o---o---o---o---o---o---o---o---o---o "next"
/ / / /
/ a---a---b A / /
/ / / /
/ / c---c---c---c B /
/ / / /
/ / / b---b C /
/ / / / /
---o---o---o---o---o---o---o---o---o---o---o "master"
A, B and C are topic branches.
* A has one fix since it was merged up to "next".
* B has finished. It has been fully merged up to "master" and
"next",
and is ready to be deleted.
* C has not merged to "next" at all.
We would want to allow C to be rebased, refuse A, and
encourage
B to be deleted.
To compute (1):
git rev-list ^master ^topic next
git rev-list ^master next
if these match, topic has not merged in next at all.
To compute (2):

git rev-list master..topic
if this is empty, it is fully merged to "master".
PrizeExample/.git/hooks/prepare-commit-msg.sample
#!/bin/sh
#
# An example hook script to prepare the commit log message.
# Called by "git commit" with the name of the file that has the
# commit message, followed by the description of the commit
# message's source. The hook's purpose is to edit the commit
# message file. If the hook fails with a non-zero status,
# the commit is aborted.
#
# To enable this hook, rename this file to "prepare-commit-
msg".
# This hook includes three examples. The first comments out
the
# "Conflicts:" part of a merge commit.
#
# The second includes the output of "git diff --name-status -r"
# into the message, just before the "git status" output. It is
# commented because it doesn't cope with --amend or with
squashed
# commits.
#
# The third example adds a Signed-off-by line to the message,
that can
# still be edited. This is rarely a good idea.
case "$2,$3" in
merge,)
/usr/bin/perl -i.bak -ne 's/^/# /, s/^# #/#/ if /^Conflicts/ .. /#/;
print' "$1" ;;

# ,|template,)
# /usr/bin/perl -i.bak -pe '
# print "n" . `git diff --cached --name-status -r`
# if /^#/ && $first++ == 0' "$1" ;;
*) ;;
esac
# SOB=$(git var GIT_AUTHOR_IDENT | sed -n
's/^(.*>).*$/Signed-off-by: 1/p')
# grep -qs "^$SOB" "$1" || echo "$SOB" >> "$1"
PrizeExample/.git/hooks/update.sample
#!/bin/sh
#
# An example hook script to blocks unannotated tags from
entering.
# Called by "git receive-pack" with arguments: refname sha1-
old sha1-new
#
# To enable this hook, rename this file to "update".
#
# Config
# ------
# hooks.allowunannotated
# This boolean sets whether unannotated tags will be allowed
into the
# repository. By default they won't be.
# hooks.allowdeletetag
# This boolean sets whether deleting tags will be allowed in
the
# hooks.allowmodifytag
# This boolean sets whether a tag may be modified after

creation. By default
# it won't be.
# hooks.allowdeletebranch
# This boolean sets whether deleting branches will be allowed
in the
# hooks.denycreatebranch
# This boolean sets whether remotely creating branches will be
denied
# in the repository. By default this is allowed.
#
# --- Command line
refname="$1"
oldrev="$2"
newrev="$3"
# --- Safety check
if [ -z "$GIT_DIR" ]; then
echo "Don't run this script from the command line." >&2
echo " (if you want, you could supply GIT_DIR then run"
>&2
echo " $0 <ref> <oldrev> <newrev>)" >&2
exit 1
fi
if [ -z "$refname" -o -z "$oldrev" -o -z "$newrev" ]; then
echo "Usage: $0 <ref> <oldrev> <newrev>" >&2
exit 1
fi
# --- Config
allowunannotated=$(git config --bool hooks.allowunannotated)
allowdeletebranch=$(git config --bool hooks.allowdeletebranch)
denycreatebranch=$(git config --bool hooks.denycreatebranch)
allowdeletetag=$(git config --bool hooks.allowdeletetag)

allowmodifytag=$(git config --bool hooks.allowmodifytag)
# check for no description
projectdesc=$(sed -e '1q' "$GIT_DIR/description")
case "$projectdesc" in
"Unnamed repository"* | "")
echo "*** Project description file hasn't been set" >&2
exit 1
;;
esac
# --- Check types
# if $newrev is 0000...0000, it's a commit to delete a ref.
zero="0000000000000000000000000000000000000000"
if [ "$newrev" = "$zero" ]; then
newrev_type=delete
else
newrev_type=$(git cat-file -t $newrev)
fi
case "$refname","$newrev_type" in
refs/tags/*,commit)
# un-annotated tag
short_refname=${refname##refs/tags/}
if [ "$allowunannotated" != "true" ]; then
echo "*** The un-annotated tag,
$short_refname, is not allowed in this repository" >&2
echo "*** Use 'git tag [ -a | -s ]' for tags you
want to propagate." >&2
exit 1
fi
;;
refs/tags/*,delete)
# delete tag
if [ "$allowdeletetag" != "true" ]; then
echo "*** Deleting a tag is not allowed in this

repository" >&2
exit 1
fi
;;
refs/tags/*,tag)
# annotated tag
if [ "$allowmodifytag" != "true" ] && git rev-parse
$refname > /dev/null 2>&1
then
echo "*** Tag '$refname' already exists." >&2
echo "*** Modifying a tag is not allowed in this
repository." >&2
exit 1
fi
;;
refs/heads/*,commit)
# branch
if [ "$oldrev" = "$zero" -a "$denycreatebranch" =
"true" ]; then
echo "*** Creating a branch is not allowed in
this repository" >&2
exit 1
fi
;;
refs/heads/*,delete)
# delete branch
if [ "$allowdeletebranch" != "true" ]; then
echo "*** Deleting a branch is not allowed in
this repository" >&2
exit 1
fi
;;
refs/remotes/*,commit)
# tracking branch
;;
refs/remotes/*,delete)

# delete tracking branch
if [ "$allowdeletebranch" != "true" ]; then
echo "*** Deleting a tracking branch is not
allowed in this repository" >&2
exit 1
fi
;;
*)
# Anything else (is there anything else?)
echo "*** Update hook: unknown type of update to
ref $refname of type $newrev_type" >&2
exit 1
;;
esac
# --- Finished
exit 0
PrizeExample/.git/index
PrizeExample/.git/info/exclude
.DS_Store
UserInterface.xcuserstate
__MACOSX/PrizeExample/.git/info/._exclude
PrizeExample/.git/logs/HEAD
0000000000000000000000000000000000000000
1b22d78d425bcdab7f2280ef764d390b541ab3fb Kevin Sahr
<[email protected]> 1358207680 -0800 commit (initial):
Initial Commit
PrizeExample/.git/logs/refs/heads/master
0000000000000000000000000000000000000000

1b22d78d425bcdab7f2280ef764d390b541ab3fb Kevin Sahr
<[email protected]> 1358207680 -0800 commit (initial):
Initial Commit
PrizeExample/.git/objects/1b/22d78d425bcdab7f2280ef764d390
b541ab3fb
PrizeExample/.git/objects/1b/22d78d425bcdab7f2280ef764d390
b541ab3fb
commit 185�tree
35d55eb67bdfb12cbe860d3db52958794681d62c
author Kevin Sahr <[email protected]> 1358207680 -0800
committer Kevin Sahr <[email protected]> 1358207680 -0800
Initial Commit
PrizeExample/.git/objects/35/d55eb67bdfb12cbe860d3db529587
94681d62c
PrizeExample/.git/objects/35/d55eb67bdfb12cbe860d3db529587
94681d62c
PrizeExample/.git/objects/3a/b1d767f07c83b809b07dd72fcbfd0
123166deb
PrizeExample/.git/objects/3a/b1d767f07c83b809b07dd72fcbfd0
123166deb
blob 180�//
// Prize.m
// PrizeExample
//
// Created by Kevin Sahr on 1/14/13.
// Copyright (c) 2013 Kevin Sahr. All rights reserved.
//
#import "Prize.h"

@implementation Prize
@end
PrizeExample/.git/objects/60/74a1ae75c9d5ed8b13741bacf58bf9
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PrizeExample/.git/objects/60/74a1ae75c9d5ed8b13741bacf58bf9
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PrizeExample/.git/objects/61/0f6e9b9fc30502acf43cd43e3b0941
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PrizeExample/.git/objects/61/0f6e9b9fc30502acf43cd43e3b0941
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blob 338�//
// main.m
// PrizeExample
//
//
#import <Foundation/Foundation.h>
int main(int argc, const char * argv[])
{
@autoreleasepool {
// insert code here...
NSLog(@"Hello, World!");
}
return 0;
}

PrizeExample/.git/objects/75/90ab9b291c1261947150dc266324b
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PrizeExample/.git/objects/75/90ab9b291c1261947150dc266324b
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blob 202�//
// Prize.h
// PrizeExample
//
//
@interface Prize : NSObject
@end
PrizeExample/.git/objects/89/5ee117fe83ae9655f6124745778b8
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PrizeExample/.git/objects/89/5ee117fe83ae9655f6124745778b8
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.Op Ar " [file ...]
.Ar arg0 " Underlined argument - use .Ar anywhere
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arg2 ... " Arguments
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Use the .Nm macro to refer to your program throughout the man
page like such:
.Nm
Underlining is accomplished with the .Ar macro like this:
.Ar underlined text .
.Pp " Inserts a space
A list of items with descriptions:
.Bl -tag -width -indent " Begins a tagged list
.It item a " Each item preceded by .It macro
Description of item a
.It item b
Description of item b
.El " Ends the list

.Pp
A list of flags and their descriptions:
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.It Fl a "-a flag as a list item
Description of -a flag
.It Fl b
Description of -b flag
.El " Ends the list
.Pp
." .Sh ENVIRONMENT " May not be needed
." .Bl -tag -width "ENV_VAR_1" -indent " ENV_VAR_1 is
width of the string ENV_VAR_1
." .It Ev ENV_VAR_1
." Description of ENV_VAR_1
." .It Ev ENV_VAR_2
." .El
.Sh FILES " File used or created by the topic of the
man page

.Bl -tag -width "/Users/joeuser/Library/really_long_file_name"
-compact
.It Pa /usr/share/file_name
FILE_1 description
.It Pa /Users/joeuser/Library/really_long_file_name
FILE_2 description
.El " Ends the list
." .Sh DIAGNOSTICS " May not be needed
." .Bl -diag
." .It Diagnostic Tag
." Diagnostic informtion here.
." .El
.Sh SEE ALSO
." List links in ascending order by section, alphabetically
within a section.
." Please do not reference files that do not exist without filing a
bug report

.Xr a 1 ,
.Xr b 1 ,
.Xr c 1 ,
.Xr a 2 ,
.Xr b 2 ,
.Xr a 3 ,
.Xr b 3
." .Sh BUGS " Document known, unremedied bugs
." .Sh HISTORY " Document history if command
behaves in a unique manner
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blob 165�//
// Prefix header for all source files of the 'PrizeExample' target
in the 'PrizeExample' project
//
#ifdef __OBJC__
#endif
PrizeExample/.git/refs/heads/master
1b22d78d425bcdab7f2280ef764d390b541ab3fb
PrizeExample/PrizeExample/main.m
//
// main.m
// PrizeExample
//
//
#import "Prize.h"
int main(int argc, const char * argv[])
{
@autoreleasepool {
Prize *prize = [[Prize alloc] init];
NSLog(@"%@", prize);
prize.name = @"Car";

prize.price = 25000;
NSLog(@"%@", prize);
if ([prize isJackpot])
NSLog(@"Jackpot!");
else
NSLog(@"Not a jackpot.");
Prize *boobyPrize = [Prize makeBoobyPrize];
NSLog(@"%@", boobyPrize);
}
return 0;
}
__MACOSX/PrizeExample/PrizeExample/._main.m
PrizeExample/PrizeExample/Prize.h
//
// Prize.h
// PrizeExample
//
//
@interface Prize : NSObject {
// no instance variables that aren't properties
}
@property NSString* name;
@property float price;

+ (Prize*)makeBoobyPrize;
- (id)initWithName:(NSString*)name price:(float)price;
- (BOOL)isJackpot;
@end
__MACOSX/PrizeExample/PrizeExample/._Prize.h
PrizeExample/PrizeExample/Prize.m
//
// Prize.m
// PrizeExample
//
//
#import "Prize.h"
@implementation Prize
+ (Prize*)makeBoobyPrize
{
Prize *bp = [[Prize alloc] initWithName:@"BOOBY
PRIZE" price:0.0];
return bp;
}
// the designated initializer
- (id)initWithName:(NSString *)name price:(float)price
{
self = [super init];
if (self)

{
_name = name;
_price = price;
}
return self;
}
- (id)init
{
return [self initWithName:@"UNKNOWN" price:0.0];
}
- (BOOL)isJackpot
{
if (self.price > 10000)
return YES;
else
return NO;
}
- (NSString*)description
{
NSString* s = [NSString stringWithFormat:@"The %@
worth $%.2f.",
self.name, self.price];
return s;
}
@end
__MACOSX/PrizeExample/PrizeExample/._Prize.m
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.Op Ar " [file ...]
.Ar arg0 " Underlined argument - use .Ar anywhere
to underline
arg2 ... " Arguments
.Sh DESCRIPTION " Section Header - required - don't
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Use the .Nm macro to refer to your program throughout the man
page like such:
.Nm
Underlining is accomplished with the .Ar macro like this:
.Ar underlined text .
.Pp " Inserts a space
A list of items with descriptions:
.Bl -tag -width -indent " Begins a tagged list
.It item a " Each item preceded by .It macro
Description of item a
.It item b
Description of item b
.El " Ends the list
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.It Fl a "-a flag as a list item
Description of -a flag
.It Fl b

Description of -b flag
.El " Ends the list
.Pp
." .Sh ENVIRONMENT " May not be needed
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width of the string ENV_VAR_1
." .It Ev ENV_VAR_1
." .It Ev ENV_VAR_2
." .El
.Sh FILES " File used or created by the topic of the
man page
.Bl -tag -width "/Users/joeuser/Library/really_long_file_name"
-compact
.It Pa /usr/share/file_name
FILE_1 description
.It Pa /Users/joeuser/Library/really_long_file_name
FILE_2 description

.El " Ends the list
." .Sh DIAGNOSTICS " May not be needed
." .Bl -diag
." .El
.Sh SEE ALSO
." List links in ascending order by section, alphabetically
within a section.
." Please do not reference files that do not exist without filing a
bug report
.Xr a 1 ,
.Xr b 1 ,
.Xr c 1 ,
.Xr a 2 ,
.Xr b 2 ,
.Xr a 3 ,

.Xr b 3
." .Sh BUGS " Document known, unremedied bugs
." .Sh HISTORY " Document history if command
behaves in a unique manner
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__MACOSX/PrizeExample/._PrizeExample.xcodeproj
CS356 Lab 2: Creating Classes
Complete the following steps in order. Use only messages and
functions discussed in class.
1. Follow Lab 1 steps 1-6 to create a new project named lab02.
Use the same project template as
specified in Lab 1 (i.e., OS X-Application-Command Line
Tool).
2. Now create an empty Prize class by doing the following:
a. Select the lab02 folder (which contains the file main.m) on
the left hand side of the Xcode
window.
b. Choose New-File from the File menu. In the dialog box
choose Source from beneath OS
X, then choose Cocoa Class. Then click Next.
c. In the dialogue box that appears enter Prize for the Class.
Make sure the Subclass of is set
to NSObject. Then click Next. You will be prompted for the
location to create the new file; put
the new file inside the lab02 folder inside your project folder
(note that the folder/file
organization that appears along the left-hand side of the Xcode
window need not necessarily
correspond to the way files are actually organized in your
directories).

3. Enter the code from Prize.h, Prize.m, and main.m that was
handed out in class into the
corresponding files. I highly recommend taking the few minutes
that it will take to actually type
this code in, rather than using copy-and-paste (from which you
will learn nothing). Make sure
the program builds and runs before proceeding.
4. Add a method with the following declaration to your Prize
class:
- (NSString*) valueString
This method should return the string “free” if the price of the
object is 0.0, “inexpensive” if the
price is greater than 0.0 but less than 1000.00, and “expensive”
otherwise. I would recommend
testing this method (and each method below) before continuing,
by experimenting with sending
the message to a Prize object in main.m.
5. Add a method with the following declaration to your Prize
class:
- (BOOL)isBetterThan:(Prize*) prize
This method should return YES if the current object (self) has a
price greater-than-or-equal-to
the passed-in prize, and NO if it does not.
7. Add two instance variables to the Prize class, a string
manufacturer and an integer year
(representing the year the prize was manufactured). Use
properties to define these instance
variables along with their setters and getters.

page � of �1 3
8. Alter the designated initializer initWithName:price: to take
two additional arguments,
corresponding to the new instance variables, and set them
accordingly.
9. Alter the init method so it uses the new designated initializer.
Use UNKNOWN for the
default manufacturer and 2013 for the default year.
10. Alter the makeBoobyPrize method so that the Prize it
creates has a manufacturer of
“Barney” and a year of 2013.
11. Alter the description method so that the string it returns has
the following form:
The value year manufacturer name worth $price.
An example might be:
The expensive 2003 Chevy Corvette worth $20000.00.
Use your valueString method to determine the value field in this
string.
12. Now replace all code in the main method with the following
steps. As above, I recommend
testing each step before proceeding.
a. Create an NSMutableArray.

b. Add Prize objects with the following values to the array, in
the order specified:
2003 Chevy Corvette worth $20,000.00
2009 Maytag washing-machine worth $650.00
A Booby-Prize created using the makeBoobyPrize: class method
2010 Carnival Cruise worth $5,000.00
2013 Bob’s Mansion worth 500,000.00
1999 Worlitzer organ worth $2,500.00
c. Print-out all objects in the array.
d. Using isBetterThan: messages, determine which of the
objects in the array is the best
Prize. Print-out the best prize.
13. Now repeat step 2 to create a class called PrizeChest. This
class should meet the following
criteria:
a. The class should have a single instance variable, an
NSMutableArray to hold prizes. We
don’t want users to directly set/get this array, so it should be
explicitly declared as an instance
variable (i.e., do not use a property).
page � of �2 3
b. The class should have one initializer named init, which will
be the designated
initializer. The initializer should create the prize array and add
to it the six prizes listed in step
12b above (hint: copy-and-paste is your friend here).

c. Override the description method so that it creates and returns
a string containing all of the
prizes in the array, one-per-line.
c. Add a method prizeAtIndex: that returns the prize at the
specified index.
d. Add a method bestPrize which finds (as per step 12d above)
and returns the best prize
in the array.
e. Add a method findBoobyPrizeIndex that finds and returns the
index of the booby
prize in the array. The booby prize can be determined by
looking through the array for the prize
whose name is “BOOBY PRIZE”.
f. Add a method shufflePrizes that shuffles the positions of the
prizes in the array. Use
the following algorithm:
FOR EACH array index curIndex DO
prize1 ← object at curIndex
randIndex ← random array index
prize2 ← object at randIndex
replace object at curIndex with prize2
replace object at randIndex with prize1
END FOR
g. After the array is populated in the init method send the
message shufflePrizes to
self.
14. Add the following steps to your main method:

a. Create a PrizeChest object.
b. Output the PrizeChest object.
c. Output the best prize in the PrizeChest (using the appropriate
message to determine
which is the best prize).
d. Output the index of the booby prize in the PrizeChest (using
the appropriate message to
determine the index).
15. Run your program and submit the output in a text file.
Compress your project by choosing
your project folder (in Finder) and then choosing File Menu-
Compress. Upload the output file
and the compressed project to Moodle for submission.
page � of �3 3
CS356 Lab 1: Getting Started with Xcode and Objective-C
Complete the following steps in order. Note that your program
may only use the classes and
messages listed on the last page of this lab. You may not use
array [] syntax for this lab.
1. Launch Xcode (which resides in the Applications folder).
2. Choose Create a new Xcode project from the splash screen
that appears. (Note that you can
always create a new project from inside Xcode by choosing File
Menu - New - Project).

3. A dialog box will appear where you will specify the type of
project you want to create.
Choose Application from beneath OS X (on left hand side of the
dialog box), then Command
Line Tool. Then click Next.
4. In the next dialog box enter lab01 as the name for your
project in the Product Name field.
Xcode requires that you enter something in the Company
Identifier field; enter “SOU” (or a
company name of your choice). Set the Language to Objective-
C (that should be the default).
Then click Next.
5. You will be presented with a file chooser dialog. Navigate to
a place where you would like to
save your project. Then click Create. Note that local drives on
lab machines are not guaranteed
to preserve your files. I recommend saving your projects on
your P: drive.
6. You should now be in the Xcode project window for your
newly created project. The source
code files in the project are listed in the pane on the left-hand
side. In this case a single
Objective-C source code file has been created for you, called
main.m. Click on this file and you
will see its content in the text editor, which occupies the center
pane. This contains default code
supplied by Apple that outputs “Hello World”.
7. Now click the Build & Run button (the “play” button in the
top left corner). This will build
(compile & link) the template program into an executable and
then, assuming there are no errors,

the program will be run with output going to the All Output
pane (which will appear when
needed). Try removing a semi-colon from the NSLog statement
to see how Xcode reports errors.
Click on the red dot to the left of the error line and note that
Xcode will suggest a fix for the
error for you (accept the fix by hitting return).
8. Now delete the NSLog statement (inside the
@autoreleasepool block statement). Replace
with a program that does the following, using only classes and
messages listed on the next page.
Do not use array [] syntax.
page � of �1 3
In each step do not make assumptions about the array contents
based on the prior steps (e.g., the
number of elements in the array, the contents of the first
element, etc.).
a. Create a mutable array object, which will contain strings
representing presents.
b. Add the three strings “Car”, “Vacation”, and “Fridge” to the
array.
c. Add the names of two more presents you’ve received to the
end of the array.
d. Replace the second element in the array with the name of a
present you have received.
e. Replace the last element in the array with the name of

another present you’ve received.
f. For each object in the array, output a sentence containing the
index, name, length of the
name, and price of that object. The price should be formatted as
money. Use the following
formula to determine the price (where ndx is the array index of
the object):
price = 102.66 * (ndx + 15)
g. Build a single NSString object containing all of the objects
in the array on a single line
separated by commas. Then output that string.
9. Run your program and copy-and-paste the output into a text
file. You can use any text editor
for this (e.g., Apple supplies a simple text editor named
TextEdit). Compress your project by
choosing your project folder (in Finder) and then choosing File
Menu - Compress. Upload the
output file and the compressed project to Moodle for
submission.
page � of �2 3
Allowable Classes and Messages for Lab 1
NSLog function
NSArray/NSMutableArray Class
(Do not use array subscripting (arrayName[]) syntax).
alloc

init
count
addObject:
replaceObjectAtIndex:withObject:
objectAtIndex:
NSString/NSMutableString Class
alloc
init
initWithString:
initWithFormat:
length
stringByAppendingString:
page � of �3 3

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