COMP 1047 Study Guide - Final Guide: Cengage Learning, Inpainting, Phoneme

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homoham6969

1 Nov 2021

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University of Windsor

Department

Computer Science

Course

COMP 1047

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Answer: representation : digital data can be __________ that have been converted into discrete digits such as 0s and 1s. , text, numbers, graphics, sound, and video, all of the above . Answer: d: the process of converting information, such as text, numbers, photos, or music, into digital data that can be manipulated by electronic devices is called ___________. , binary, digitization, representation , none of the above. Unit 01 digital content: ________ data consists of numbers that can be used in arithmetic operations. , text, digital, numeric, binary . Answer: false: the _______ number system allows digital devices to represent virtually any number simply by using 0s and 1s. , digital, text , numeric, binary. Answer: false: ascii requires __________ bits for each character. , two, six, seven, ten. Answer: c: unicode uses________ bits and provides codes for 65,000 characters. , seven, eight, ten, sixteen.

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29. Consider the Cocktail Sort (code 4) algorithm described in the appendix. What is the fewest number of lines of code that would have to be added, removed, or changed in order for this algorithm to sort from largest to smallest? (A) Everything inside the second for loop. (B) 3 (C) 1 (D) 2 (E) Everything inside both for loops. Binary answers For the following questions you are to use your choices as they were the representation of a binary number. More precisely, A = 24, B = 23, C = 22, D = 21, and E = 20 position in a base 2 number. For example if you wanted to answer the number 23, you would translate it first as base 2 number, which is 10111, you would blacken A, C, D and E.2 Lets look at this process on your answer sheet, we have these 5 circle you can blacken. Normally you only pick one, here you might have to blacken more than one! @ ® © D ® Following the previous example, the answer we want to input is 23, its binary representation is 10111, hence the circle you would blacken are the following:

Covid_Data = [["age bracket",["BC","AB","SK"]],
[(12,17),[[212286,303122],[200521,315968],[51128,87621]]],
[(18,29),[[576245,816781],[412013,695111],[100170,181751]]],
[(30,39),[[561039,740505],[459399,715542],[106941,172421]]],
[(40,49),[[514551,649358],[437833,608434],[102214,143466]]]]

le that contains a list of lists, to which the variable Covid_Data refers, which contains
information about vaccination numbers, by age bracket, in some provinces. 1 The rst item in Covid_Data
is a list whose rst item is a string "age bracket" , and whose second item is a list of the names of several
provinces. The other items in Covid_Data are lists whose rst item is a tuple denoting an age bracket and
whose second item is a list of lists. Each of these sublists correspond to data from a province and the rst
item is the number of people fully vaccinated and the second item is the population of that province in the
givien age group.
Just copy/paste this list of lists to your program. But keep in mind that your code should work even if we
use a dierent starting list (representing a dierent set of provinces, though with the same format) to test
your program.
Determine percentage of people fully vaccinated in an age range for
each given province .
To do this you will need to write a function called prov_percent_vaccinated_in_age_range, which takes
the list of lists described above as the rst parameter, and the name of a particular province, given as a
string (ie. "BC"), as the second parameter, the lower and upper bounds on an age range are the third and
fourth parameters. This function should return the percent fully vaccinated in the given age range in the
given province.
To do this you may nd the list method .index() useful to determine the index of of the data corresponding
to a province. Note that L.index("Prov") will be 2 if "Prov" is the 3th item in list L. For example, in the
sample data, the index of "SK" in the list Covid_Data[0][1] is 2. To limit the number of decimal places
returned use the function round(). For example, If x = 3.567, then round(x,1) returns 3.6.
Next create a function percent_vaccinated_in_age_range which takes the list of lists described above as its
rst parameter, the lower and upper bounds of an age range as its other two parameters. This function rst
prints out a line indicating the age range, then it should call the function prov_percent_vaccinated_in_age_range
and for each province represented in the data prints out a line indicating the percent fully vaccinated in
that province.

For example: Write a function called add_vaccinated_in_age_bracket that takes the list of lists (described above) as its
rst parameter and modies it. The second parameter is the name of a province given as a string, the third
parameter is an age bracket ( given as a tuple), and the nal parameter is a number to add to the number
of fully vaccinated people in the given age bracket for the given province.
This change should be done by modifying the input list itself. No new lists should be created and this
function has no return value.
Assume that recently, in "SK", there has been a vaccination blitz in high schools. This has added 10000 to
the number of fully vaccinated in the age bracket from 12 to 17.
Print "–- After High School Vaccination Blitz –-".
In the main program, call the function add_vaccinated_in_age_bracket to record the results of this vaccination
blitz. Finally call percent_vaccinated_in_age_range again for the age range 12 to 2

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8. Write a class called WordSet representing a set of String objects which can contain an arbitrary number of strings, limited only by the memory available to the Java Virtual Machine. A set is a collection of elements, however, unlike a list, a set cannot contain duplicate elements. Therefore, as its name implies, a WordSet object cannot contain duplicate Strings that is, if one attempts to da String to a Wordset, and the wordset already contains an element which is equal to this string, the attempt will fail and the state of the Wordset will not change. All String comparisons performed in the methods defined in the Wordset class are done in a Case SENSITIVE manner. Note that in the method descriptions below, the phrase "this Wordset" means "the Wordset on which the method in question is called." Your Wordset class MUST provide the following INSTANCE methods • A constructor, which takes no parameters and initializes the new Wordset ohject so that it contains no elements • A method called add(), which takes as its only parameter a string and returns a value of type boolean. If this Wordset already contains a string which is equal to the parameter string, or the parameter String is null, then the state of this Wordset does not change and the method return false; otherwise, the parameter String is added to this Wordset. and the method returns true. • A method called remove().which takes as its only parameter a string and returns a value of type boolean. If this wordSet contains a string which is equal to the parameter String this string is removed from the WordSet and the method returns true. On the other hand, if the string parameter is null or this Wordset does not contain a string which is equal to the parameter string, then the state of this wordset does not change, and the method return false. • A method called get.size(), which takes no parameters and returns the number of strings currently stored in this Wordset. This method MUST NOT change the state of this Wordset. • A method called isMember(). which takes as its only parameter a string and retumsa value of type boolean which is true if this wordset contains the parameter String false otherwise. If the parameter String is null, this method also return false. This method MUST NOT change the state of this wordset. • A method called computebirrerence().which takes as its only parameter a Wordset and returns a new Wordset representing the difference between this wordset and the parameter Wordset: in other words, the WordSet returned by this method contains all the strings that are in this wordset, but not in the parameter Wordset. If the parameter Wordset contains all the elements of this WordSet or this WordSet contains no elements, then this method returns a new Wordset containing no elements. Finally, if the parameter Wordset is null or contains ne strings, then this method returns a new wordset which contains all the elements of this wordset. This method MUST NOT change the state of this wordset or the parameter Wordset. • A method called tostring , which takes the parameters and turns a string which is the textual representation of this wordset. This textual representation consists of the concatena tion of the following clements - The String - The text representation of each clement in the WordSet; cach pair of adjacent clements is separated by the String", but this String MUST NOT appear before the first clement or after the last element - The String") The order in which the elements of this Wordset appear in the textual representation generated by the tostring() method does not matter. If the WordSet contains to Brings, then the textual representation returned by this method is ". Note that you MUST respect proper encapsulation practices that is, the attributes and methods of your class MUST be declared using the proper visibility modifier NINT Um an array list (of string) to keep track of the string stored in a wordt ob joot Is there a method defined in the Array loist class which determines whether in clementis already wored in an array ist, and which will do a case-sensitive comparison when liked on an Arraylint of strings? See the pages 24-26 of this examination for information about potentially useful methods defined by the ArrayList class WRITE YOUR Wordset CLASS IN THE SPACE BELOW:

COMP 1047 Study Guide - Final Guide: Cengage Learning, Inpainting, Phoneme

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