Would you allow yourself to be connected to Nozick’s “Experience Machine” for the rest of your life? Why or why not? What do you believe this thought-experiment shows us about what we find important in life?
In: Psychology
Case Study: University Library System
This case is a simplified (initial draft) of a new system for the
University Library. Of course, the library system must keep track
of books. Information is maintained about both book titles and the
individual book copies. Book titles maintain information about
title, author, publisher, and catalog number. Individual copies
maintain copy number, edition, publication year, ISBN, book status
(whether it is on the shelf or loaned out), and date due back
in.
The library also keeps track of patrons to the library. Since it is
a university library, there are several types of patrons, each with
different privileges. There are faculty patrons, graduate student
patrons, and undergraduate student patrons. Basic information about
all patrons is name, address, and telephone number. For faculty
patrons, additional information is office address and telephone
number. For graduate students, information such as graduate program
and advisor information is maintained. For undergraduate student’s
program and total credit hours are maintained.
The library also keeps information about library loans. A library
loan is a somewhat abstract object. A loan occurs when a patron
approaches the circulation desk with a stack of books to check out.
Over time a patron can have many loans. A loan can have many
physical books associated with it. (And a physical book can be on
many loans over a period of time. Information about past loans is
kept in the database.) So, in this case, it is recommended that an
association class be created for loaned books.
If a book is checked out that a patron wants, he/she can put that
title on reserve. This is another class that does not represent a
concrete object. Each reservation is for only one title and one
patron. Information such as date reserved, priority, and date
fulfilled is maintained. When it is fulfilled, the system
associates it with the loan on which it was checked out.
For this case, develop the following diagrams:
1. Use Case description for checking out books with one any exceptional case
In: Computer Science
We will do some basic data analysis on information stored in external files.
You will find the following data files in the Source Code -> Chapter 7 folder you should have downloaded already downloaded/unzipped in Lesson 3. If you need that link again:
Pyton4E_Source_Code.zip
GirNames.txt
contains a list of the 200 most popular names given to girls born
in US from year 2000 thru 2009
BoyNames.txt
contains a list of the 200 most popular names given to boys born in
US from year 2000 thru 2009
Hint: See Program 7-15
read_list.py for example of reading a file's
contents into a list and using a loop to strip each \n
Here is the high-level algorithm (you still have work to do
:)
open BoyNames.text for reading
read all lines into a list
close the file
while there are elements in list
strip the \n from each element
open GirlNames.txt for reading
read all lines into a list
close file
while there are elements in list
strip \n from each element
get user input for boy
get user input for girl
display result for boy's name entered by user (you
need a decision structure as output depends on user
input)
display result for girl's name entered by user
(you need a decision structure as output depends on user
input)
Input: a boy's name, a girl's name, or 'N' for
none
Output: messages indicating whether the names were
among the most popular
Note: Use a try/except to
catch IOError
as anytime we deal with external files, problems may occur (file
doesn't exist, we don't have permissions, disk is corrupted, and so
on).
Sample Input/Output
IMPORTANT NOTE: The external files MUST be in same directory as your source code.
You may run your code on the command line/system prompt (as I have done) OR from IDLE (Run->Run Module or F5).
Here is first run showing output when user input for both boy and girl are popular names (user input shown in italics/bold ).
Enter a boy's name, or N if you do not wish to enter a boy's name: Michael Enter a girl's name, or N if you do not wish to enter a girl's name: Emma Michael is one of the most popular boy's names. Emma is one of the most popular girl's names.
Here is a second run where user says 'N' to entering names
$ python babyname.py Enter a boy's name, or N if you do not wish to enter a boy's name: N Enter a girl's name, or N if you do not wish to enter a girl's name: N You chose not to enter a boy's name. You chose not to enter a girl's name.
Here is third run showing user input with a girl name not in the GirlNames.txt file:
$ python babyname.py Enter a boy's name, or N if you do not wish to enter a boy's name: John Enter a girl's name, or N if you do not wish to enter a girl's name: Ada John is one of the most popular boy's names. Ada is not one of the most popular girl's names.
Note: We will test code with THREE sample runs:
this is what i did for this assignment but i got some error could you please help me with it
def main():
#open BoyNames.text for reading
infile = open('BoyNames.text', 'r')
#read all lines into a list
BoyNames = infile.readlines()
#close the file
infile.close()
#while there are elements in list
#strip the \n from each element
index = 0
while index < len(BoyNames):
BoyNames[index] = BoyNames[index].rstrip('\n')
index += 1
#open GirlNames.txt for reading
infile = open('GirlNames.txt', 'r')
#read all lines into a list
GirlNames = infile.readlines()
#close the file
infile.close()
# while there are elements in list
# strip \n from each element
index = 0
while index < len(GirlNames):
GirlNames[index] = GirlNames[index].rstrip('\n')
index += 1
#get user input for boy
try:
BoyName = input ("Enter a boy's name, or N if you do not wish to
enter a boy's name:")
print (BoyNames)
GirlName = input ("Enter a gilr's name, or N if you do not wish to
enter a girl's name:")
print (GirlNames)
except IOError:
print ("You chose not to enter a girl's name.")
main()
In: Computer Science
If z=x2y- 9xy2 and x=u2+euw, y=v2+2uv, when u=1, v=-1, w=0, then Zu=
In: Math
Find the directional derivative of the function at the given point in the direction of the vector v. ? = (2? + 3?)2, ? ⃑ = 1 2 ? ⃑+ √3 2 ? ⃑, (-1,1,1)
In: Math
In: Chemistry
In: Advanced Math
Describe the strategy behind the Double V campaign. How did it enable African Americans to protest their circumstances without risking accusations of disloyalty?
In: Economics
What are the issues in the following case and what
laws pertain to it?
Fletcher v South Peninsula
sidenote-this case is about a patient and a hospital staff
In: Economics
What specific law applies to the following case and what was the overall conclusion of the case:
Fletcher v. South Peninsula
(case is about health)
In: Economics