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lab2.php1 lines ASCII Unix (LF) <?php
/**
* Generate random values to use in lab.
*/
include __DIR__ . "/../random.php";
//SECTION 1 ****************************************************
$s1_present = ["Ozelot", "Kvothe", "It's a very, very, merry, merry christmas. Gonna party on 'til Santa grants my wishes.", rand_int(10000, 15000)];
$s1_christPresent = ["Pirate", "Zeldah", "You, oh ,oh, a Christmas. My Christmas tree is delicious", rand_int(20000, 25000)];
$s1_compPresent = ["Icecream", "Lew", "That's why I celebrate Christmas 'Cause this overweighted redneck devil is big business", rand_int(1, 20)];
$s1_searchStrings = [
["ew", "False False True "],
["zel", "True False False "],
["irat", "False True False "]
];
$s1_searchString = $s1_searchStrings[rand_int(0, count($s1_searchStrings) -1)];
$s1_listYear = [1993, 1994, 1996, 2000, 2003, 2005, 2010, 2013, 2014, 2016];
$s1_listMonth = ["01", "02", "03", "04", "05", "06" , "07", "08", "09", "10" , "11", "12"];
$s1_listDay = ["01", "02", "04", "06", "07", "08", "09", "11", "13", "14", "16", "17", "18", "20", "23", "26", "28", "30"];
$s1_year = $s1_listYear[rand_int(0, count($s1_listYear)-1)];
$s1_month = $s1_listMonth[rand_int(0, count($s1_listMonth)-1)];
$s1_day = $s1_listDay[rand_int(0, count($s1_listDay)-1)];
$s1_year2 = $s1_listYear[rand_int(1, count($s1_listYear)-1)];
$s1_month2 = $s1_listMonth[rand_int(1, count($s1_listMonth)-1)];
$s1_day2 = $s1_listDay[rand_int(1, count($s1_listDay)-1)];
$s1_dogNames = ["Buster", "James", "Zimba", "Goliat"];
$s1_dogRaces = ["Shitzu", "Cocker spaniel", "Rottwiler", "Grand danois"];
$s1_dogSizes = ["small", "medium", "big", "big"];
$s1_dogDays = [rand_int(5, 10), rand_int(7, 14), rand_int(5, 15), rand_int(20, 25)];
#$s1_dogOrders = [
# [1,2,3,4],
# [2,4,1,3],
# [4,2,3,1],
# [3,2,1,4]
# ];
#$s1_dogOrder = $s1_dogOrders[rand_int(0, count($s1_dogOrders) -1)];
$s1_dog1 = [$s1_dogNames[0], $s1_dogSizes[0], $s1_dogRaces[0], $s1_dogDays[0]];
$s1_dog2 = [$s1_dogNames[2], $s1_dogSizes[2], $s1_dogRaces[2], $s1_dogDays[2]];
$s1_dog3 = [$s1_dogNames[3], $s1_dogSizes[3], $s1_dogRaces[3], $s1_dogDays[3]];
#$s1_dog4 = [$s1_dogNames[1], $s1_dogSizes[1], $s1_dogRaces[1], $s1_dogDays[1]];
$s1_priceSmall = rand_int(100, 120);
$s1_priceMedium = rand_int(121, 150);
$s1_priceBig = rand_int(151, 200);
return [
/**
* Titel and introduction to the lab.
*/
"title" => "Lab 2 - oopython",
"intro" => <<<EOD
EOD
,
"sections" => [
/** ===========================================================================
* New section of exercises.
*/
[
"title" => "More classes",
"intro" => <<<EOD
Practice some more on creating classes in python.
EOD
,
"shuffle" => false,
"questions" => [
/** ---------------------------------------------------------------------------
* A question.
*/
[
"text" => <<<EOD
Create a new class named Date.
Give it the variables year, month and day.
Give it a info method that returns a string with the format "dd:mm:year".
Initialize a new variable called date1, give it year $s1_year, month $s1_month and day $s1_day.
Answer with the result from the info method.
EOD
,
"answer" => function () use ($s1_year, $s1_month, $s1_day) {
return "$s1_year:$s1_month:$s1_day";
},
],
/** ---------------------------------------------------------------------------
* A question.
*/
[
"text" => <<<EOD
Overload the smaller than method(<) in the Date class.
It should return if the date comes before the other.
Initialize a new Date variable called date2 , give it year $s1_year2, month $s1_month2 and day $s1_day2.
Answer with date1<date2.
EOD
,
"answer" => function () use ($s1_year, $s1_month, $s1_day, $s1_year2, $s1_month2, $s1_day2) {
if ($s1_year < $s1_year2){
return true;
} elseif ($s1_year == $s1_year2){
if((int)$s1_month < (int)$s1_month2){
return true;
} elseif((int)$s1_month == (int)$s1_month2 && (int)$s1_day < (int)$s1_day2){
return true;
}else{
return false;
}
} else{
return false;
}
},
],
/** ---------------------------------------------------------------------------
* A question.
*/
[
"text" => <<<EOD
For the next few exercises we will work on a dog kennel, we will have three classes when we are done, Dog, DogType and Kennel.
Create a new class called Dog. Give it the variables name, size, race and number of days to stay at kennel.
Give it a method that returns a string of its information in the format "name: xxx, size: ccc, race: fff, nrOfDays: 000".
In the code below initialize a new Dog variable calle dog1, give it the name $s1_dog1[0], the size $s1_dog1[1], the race $s1_dog1[2] and $s1_dog1[3] days to stay.
Answer with the info method of dog1.
EOD
,
"answer" => function () use ($s1_dog1) {
return "name: $s1_dog1[0], size: $s1_dog1[1], race: $s1_dog1[2], nrOfDays: $s1_dog1[3]";
},
],
/** ---------------------------------------------------------------------------
* A question.
*/
[
"text" => <<<EOD
The next class that you will create will hold dogs of a certain type. Eg. one instance of this class will hold all the small dogs, contain the size of the dogs, how many dogs of the type are allowed and how much a small dog costs per day.
Create a new class called DogType. Give it the variables cost, size, numberOfAllowedDogs and a private list that will containts Dogs.
Give it a new method called addDog, it should take a Dog object as parameter. In the method add the dog to the list if you have room for the dog and it has the correct size. If you add the dog return True otherwise return False.
Initialize a new DogType variable in the code below, calle it smallDogs, the cost should be $s1_priceSmall, size small and numberOfAllowedDogs 3.
Use the add method to add the dog1 variable from previous exercise.
Answer with the result from adding dog1.
EOD
,
"answer" => function () {
return True;
},
],
/** ---------------------------------------------------------------------------
* A question.
*/
[
"text" => <<<EOD
In the DogType class create a new method called retrieveDog, take a name as parameter. If the dogs name is the same as a dog in the list remove it from the list and return it, otherwise reutn False.
In the code below call smallDogs.retrieveDog($s1_dog1[0]).
Answer with the returned Dogs number of days stayed.
EOD
,
"answer" => function () use ($s1_dog1) {
return $s1_dog1[3];
},
],
/** ---------------------------------------------------------------------------
* A question.
*/
[
"text" => <<<EOD
Time to make the Kennel class. Chose a way to store three DogType objects, a list, a dictionary or one variable for each. One for small, one for medium and one for big dogs.
Initialize the DogType for small dogs with size small, cost $s1_priceSmall and numberOfAllowedDogs 3.
Initialize the DogType for medium dogs with size medium, cost $s1_priceMedium and numberOfAllowedDogs 2.
Initialize the DogType for big dogs with size big, cost $s1_priceBig and numberOfAllowedDogs 1.
Create a method in Kennel that checks-in a new dog at the Kennel, it takes a Dog object as parameter. In the method add the dog to the appropriate DogType and reutrn whats returned from the DogType addDog method.
In the code below initialize a new Kennel variable and check-in dog1 to the kennel.
Answer with the result from the check-in.
EOD
,
"answer" => function () {
return True;
},
],
/** ---------------------------------------------------------------------------
* A question.
*/
[
"text" => <<<EOD
Create a new method in the kennel class for checkint-out a Dog. It takes a name and size as parameter.
In the method try to retrieve the dog from apropriate DogType with the DogType method retrieveDog. The Checkout method should return the cost for having the dog at the Kennel, aka days stayed * cost of size.
In the code below create a new Dog variable called dog2, give it the name $s1_dog2[0], the size $s1_dog2[1], the race $s1_dog2[2] and $s1_dog2[3] days to stay.
Check-in dog2 at the kennel and Checkout dog1 from the Kennel.
Answer with the price of having dog1 at the Kennel, whats returned form the checkout method.
EOD
,
"answer" => function () use ($s1_dog1, $s1_priceSmall) {
return $s1_dog1[3] * $s1_priceSmall;
},
],
/** ---------------------------------------------------------------------------
* A question.
*/
[
"text" => <<<EOD
Create a new Dog variable named dog 3. Give it the name $s1_dog3[0], the size $s1_dog3[1], the race $s1_dog3[2] and $s1_dog3[3] days to stay.
Check it in at the Kennel and answer with the result.
EOD
,
"answer" => function () {
return False;
},
],
/** ---------------------------------------------------------------------------
* A question.
*/
[
"text" => <<<EOD
Create a class named Present.
Give it the variables content and recipient.
Give it a info method where you return "content: xxx, recipient: yyy".
Initialize a new Present variable in the code below named present. Give it the content $s1_present[0], recipient $s1_present[1].
Answer with the result from the info method.
EOD
,
"answer" => function () use ($s1_present) {
return "content: $s1_present[0], recipient: $s1_present[1]";
},
],
/** ---------------------------------------------------------------------------
* A question.
*/
[
"text" => <<<EOD
Create a new class called ChristmasPresent it should inherit from Present.
ChristmasPresent has the variale Rhyme. Use "super" to initiate the variables from the parent class(Present) with content and recipient from the constructor.
Override the info method from Present to return "content: xxx, recipient: yyy, rhyme: zzz". A tip, you can access the parent method with super and just add rhyme to the returned string and return that.
Create a new ChristmasPresent variable in the code below. Give it the content $s1_christPresent[0], recipient $s1_christPresent[1] and rhyme "$s1_christPresent[2]".
EOD
,
"answer" => function () use ($s1_christPresent) {
return "content: $s1_christPresent[0], recipient: $s1_christPresent[1], rhyme: $s1_christPresent[2]";
},
],
/** ---------------------------------------------------------------------------
* A question.
*/
[
"text" => <<<EOD
Create a new class called CompanyPresent it should inherit from Present.
CompanyPresent has the variale Cost. Use "super" to initiate the variables from the parent class(Present) with content and recipient from the constructor.
Override the info method from Present to return "content: xxx, recipient: yyy, cost: zzz". A tip, you can access the parent method with super and just add cost to the returned string and return that.
Create a new CompanyPresent variable in the code below. Give it the content $s1_compPresent[0], recipient $s1_compPresent[1] and cost "$s1_compPresent[3]".
EOD
,
"answer" => function () use ($s1_compPresent) {
return "content: $s1_compPresent[0], recipient: $s1_compPresent[1], cost: $s1_compPresent[3]";
},
],
/** ---------------------------------------------------------------------------
* A question.
*/
[
"text" => <<<EOD
Create a new method in the class Present, name it findString. It takes a string as argument and search if any of the class variables contains the string.
If it does, return True otherwise return False.
In the code below:
Put the three recent Present, and sub classes, variables in list. Traverse the list and call the findString method on each variable . Use "$s1_searchString[0]" as argument.
Answer with a string where the result from the three method calls are seperated with a space, " ", and have a space at the end of the string.
EOD
,
"answer" => function () use ($s1_searchString) {
return $s1_searchString[1];
},
],
/** ---------------------------------------------------------------------------
* Closing up this section.
*/
], // EOF questions
], // EOF section
/** ===========================================================================
* Closing up all sections.
*/
] // EOF sections
/**
* Closing up this lab.
*/
]; // EOF the entire lab