The Objectives are to:

1. Use IDLE IDE for Python.
2. Develop a few simple Python programs and show they will translate and run.
3. Experience error messages when you enter bad syntax the interpreter cannot understand.

Discussion:

The best way to learn Python (or any programming language) is to write & run Python programs. In this lab you will enter two programs, and run them to produce the output. Then deliberately insert syntax errors to see what kinds of error messages you get. Finally, you will be given a "specification" of a simple problem to solve. From this specification create a program, and run it against a set of specified test values. Properly document the last program so another person can read it and determine its purpose.

Specifications:

1.  Using IDLE IDE to create a source code file named welcome.py, enter the following Python code, translate it and run it.

def main():

    print("Welcome to the wonderful world of Python programming!")

main()

After a successful run, capture its output and close its workspace.

2.   Perform the same steps described in part 1 for the following program:

def main():

    integer1 = int(input("Enter first integer"))     # prompt and enter the first integer

    integer2 = int(input("Enter second integer"))    # prompt and enter the second integer

    sum =    integer1 + integer2                     # generate and assign the sum

    print("The sum of", integer1, "and", integer2,

"is", sum)                                     # print sum

    difference = integer1 – integer2                # assignment of difference

    print("The difference of", integer1, "minus",

integer2, "is", difference)                    # print difference

main()

3. "Comment-out" the second line of the second program so it looks like this:

          # integer1 = int(input("Enter first integer"))     # prompt for and input first integer

Try to run the modified program and record (and hand in) the error message(s).

4. Remove the comment symbol from the previous part (i.e., restore your program to

its previous working condition) and then comment-out the sum assignment statement like this:

                  # sum =    integer1 + integer2                            # assignment of sum

            Run the modified program and capture the error message(s) you see.

5. Restore your working program again and then comment-out the code line,

                        # difference = integer1 – integer2                 # assignment of difference

Once again run the modified program and capture the error message(s) you see. Explain why the error message you got when commenting out the sum statement differs than when commenting out the difference statement.

  6.  Problem:  Design, Develop, Integrate, and Test (DDI&T) a Python program that converts a Fahrenheit temperature into its Celsius temperature equivalent.

             The formula for converting Fahrenheit to Celsius is,

                        Celsius = 5.0/9.0*(Fahrenheit – 32.0)

Your program should prompt the user for a Fahrenheit temperature, convert it to Celsius and then output both values in the following format:

         Fahrenheit Temperature = <Fahrenheit value>

         Celsius Temperature = <Celsius value>

            Fully test your program with the following set of Fahrenheit temperatures:

         75.5, 32.0, -459.4, -40.0, 0.0, 100.0, and 212.0

Note that the temperature values are both input and output with one decimal of precision after the decimal point.

Documentation Guidelines:

Use good programming style (e.g., indentation for readability) and document each of your program parts with the following items (the items shown between the '<' and '>' angle brackets are only placeholders. You should replace the placeholders and the comments between them with your specific information). Your cover sheet should have some of the same information, but what follows should be at the top of each program's sheet of source code. Some lines of code should have an explanation of what is to be accomplished, this will allow someone supporting your code years later to comprehend your purpose. Be brief and to the point. Start your design by writing comment lines of pseudocode. Once that is complete, begin adding executable lines. Finally run and test your program.

#===================================================================

#    CS119T – Unit 1-Submission Node – IDEs and Debugging

#    Filename: Unit 1 Submission Node: my-unit1-submission-node.doc

#    Author: <Your name>

#    Purpose: Demonstrate basic Python programming in the IDLE

#               development environment

#               by following steps 1 through 6 above.

#===================================================================

Deliverable(s):

Your deliverable should be a Word document with screenshots showing the code you have created, and discuss the issues that you had for this project related to AWS and/or Python IDE and how you solved them for all of the programs listed above as well as the inputs and outputs from running them. For parts 3, 4 and 5 where you deliberately "seeded" errors into your code, capture and turn in the error messages you encountered when attempting to translate and run these errant programs.  Include a cover sheet with the hardcopy of your labs when you turn them in to the instructor.

Beacon Signals Company maintains and repairs warning lights, such as those found on radio towers and lighthouses. Beacon Signals Company prepared the following end-of-period spreadsheet at December 31, 2019, the end of the fiscal year: Beacon Signals Company End-of-Period Spreadsheet For the Year Ended December 31, 2019 Unadjusted Trial Balance Adjustments Adjusted Trial Balance Account Title Dr. Cr. Dr. Cr. Dr. Cr. Cash 13,000.00 13,000.00 Accounts Receivable 40,500.00 (a) 12,500.00 53,000.00 Prepaid Insurance 4,200.00 (b) 3,000.00 1,200.00 Supplies 3,000.00 (c) 2,250.00 750.00 Land 98,000.00 98,000.00 Building 500,000.00 500,000.00 Accumulated Depreciation-Building 255,300.00 (d) 9,000.00 264,300.00 Equipment 121,900.00 121,900.00 Accumulated Depreciation-Equipment 100,100.00 (e) 4,500.00 104,600.00 Accounts Payable 15,700.00 15,700.00 Salaries and Wages Payable (f) 4,900.00 4,900.00 Unearned Rent 2,100.00 (g) 1,300.00 800.00 Sarah Colin, Capital 238,100.00 238,100.00 Sarah Colin, Drawing 10,000.00 10,000.00 Fees Earned 388,700.00 (a) 12,500.00 401,200.00 Rent Revenue (g) 1,300.00 1,300.00 Salaries and Wages Expense 163,100.00 (f) 4,900.00 168,000.00 Advertising Expense 21,700.00 21,700.00 Utilities Expense 11,400.00 11,400.00 Depreciation Expense-Building (d) 9,000.00 9,000.00 Repairs Expense 8,850.00 8,850.00 Depreciation Expense-Equipment (e) 4,500.00 4,500.00 Insurance Expense (b) 3,000.00 3,000.00 Supplies Expense (c) 2,250.00 2,250.00 Miscellaneous Expense 4,350.00 4,350.00 1,000,000.00 1,000,000.00 37,450.00 37,450.00 1,030,900.00 1,030,900.00 Required: 1. Prepare an income statement for the year ended December 31. If a net loss has been incurred, enter that amount as a negative number using a minus sign. Be sure to complete the statement heading. Use the list of Labels and Amount Descriptions for the correct wording of text items other than account names. You will not need to enter colons (:) on the income statement. 2. Prepare a statement of owner’s equity for the year ended December 31. No additional investments were made during the year. For those boxes in which you must enter subtracted or negative numbers use a minus sign. Be sure to complete the statement heading. Use the list of Labels and Amount Descriptions for the correct wording of text items. 3. Prepare a balance sheet as of December 31. Fixed assets must be entered in order according to account number. Be sure to complete the statement heading. Use the list of Labels and Amount Descriptions for the correct wording of text items other than account names. You will not need to enter colons (:) or the word "Less" on the balance sheet; they will automatically insert where necessary. 4. Based upon the end-of-period spreadsheet, journalize the closing entries. Explanations should be omitted. If you are unsure of account titles, see the chart of accounts. 5. Prepare a post-closing trial balance. CHART OF ACCOUNTS Beacon Signals Company General Ledger ASSETS 11 Cash 12 Accounts Receivable 13 Prepaid Insurance 14 Supplies 15 Land 16 Building 17 Accumulated Depreciation-Building 18 Equipment 19 Accumulated Depreciation-Equipment LIABILITIES 21 Accounts Payable 22 Salaries and Wages Payable 23 Unearned Rent EQUITY 31 Sarah Colin, Capital 32 Sarah Colin, Drawing REVENUE 41 Fees Earned 42 Rent Revenue EXPENSES 51 Salaries and Wages Expense 52 Advertising Expense 53 Utilities Expense 54 Depreciation Expense-Building 55 Repairs Expense 56 Depreciation Expense-Equipment 57 Insurance Expense 58 Supplies Expense 59 Miscellaneous Expense Labels Current assets Current liabilities December 31, 2019 Expenses For the Year Ended December 31, 2019 Property, plant, and equipment Revenues Amount Descriptions Decrease in owner’s equity Increase in owner’s equity Net income Net loss Sarah Colin, capital, January 1, 2019 Sarah Colin, capital, December 31, 2019 Total assets Total current assets Total expenses Total liabilities Total liabilities and owner’s equity Total property, plant, and equipment Total revenues Withdrawals 1. Prepare an income statement for the year ended December 31. If a net loss has been incurred, enter that amount as a negative number using a minus sign. Be sure to complete the statement heading. Use the list of Labels and Amount Descriptions for the correct wording of text items other than account names. You will not need to enter colons (:) on the income statement. Beacon Signals Company Income Statement For the Year Ended December 31, 2019 Text entry invalid 1 Revenue: 2 Fees earned 3 Rent revenue 4 Expense 5 (Label) 6 7 8 9 10 11 12 13 14 15 16

write pseudocode for the following problems using if while conditions

A student buys various books at the start of the semester from a bookshop. Write pseudocode for a program which takes the total amount spent on books and the total number of books as input and outputs the average cost per book.

Write pseudocode for a program which takes a year as input (e.g. 2014) and determines whether or not it is a leap year. A leap year is a multiple of 4, and if it is a multiple of 100, it must also be a multiple of 400.

Write pseudocode for a program which takes 3 integer values, a b c, as input and prints their sum. However, if one of the values is the same as another of the values, it does not count towards the sum.

When squirrels get together for a party, they like to have nuts. A squirrel party is successful when the number of nuts is between 40 and 60, inclusive. Unless it is the weekend, in which case there is no upper bound on the number of nus. Write pseudocode of a program which inputs the number of nuts consumed at a party, and prints “True” if the party with the given values is successful, or “False” otherwise.

Write pseudo code that will perform the following. 

Read in 5 separate numbers.

Calculate the average of the five numbers.

Find the smallest (minimum) and largest (maximum) of the five entered numbers.

Write out the results found from steps b and c with a message describing what they are.

Write pseudo code that reads in three numbers and writes them all in sorted order.

You are driving a little too fast, and a police officer stops you. Write pseudocode to compute the result, encoded as an integer value: 0=no ticket, 1=small ticket, 2=big ticket. If speed is 60 or less, the result is 0. If speed is between 61 and 80 inclusive, the result is 1. If speed is 81 or more, the result is 2. Unless it is your birthday -- on that day, your speed can be 5 higher in all cases.

Write pseudocode for a program that prints the numbers from 1 to 100. But for multiples of three print “Fizz” instead of the number and for the multiples of five print “Buzz”. For numbers which are multiples of both three and five print “FizzBuzz”.

Iterations

Write a loop to print this fencepostpattern. Such fencepost loops can be created by placing one post (i.e. |) outside your loop, and then alternating between wires (i.e. ==) and posts inside the loop.

|==|==|==|==|

Write pseudocode for a program that takes an integer and uses a fencepost loop to print the factors of that number, separated by the word "and". For example, for the number 24, it should print the following output.

1 and 2 and 3 and 4 and 6 and 8 and 12 and 24

Write pseudocode for a program which repeatedly reads integers from the user, stopping only when the user enters -1, and returns the largest value input.

write a program that calculates the sum of numbers entered by a user one at a time. The program terminates when user enters -1.

Write pseudcode for a program that calculates the area of simple shapes. The Shape given as input can be circle, square, or right triangle.

Extend the previous program such that the users can calculate the area (of the 3 specified shapes) as many times as they want. 

Write PC that takes in a +ve number N and prints the square of size N composed of '*'.

Write PC that takes in a +ve number N and determines if it is a prime or not. 

Q4.   can be calculated from the infinite series given below: 

=4- 43+ 45- 47+ 49- 411+

Write a pseudo code that prints the value of after the first 100 terms, 200 terms and 300 terms. Write one pseudo code that prints all three values. Don’t write 3 different codes. 

Write a program that takes in a +ve integer and prints its break up in terms of units, tens, hundreds etc. The number is not longer than 4 digits.

Input 2000        Output: 0 units, 0 tens, 0 hundreds, 2 thousands

Input 173        Output: 3 units, 7 tens, 1 hundreds

Write a program to output the individual digits of a number from right to left with spaces added in between each digit. For example if the number is 9867 then your program should output: 7 6 8 9 

 Repeat the above so that the digits are printed from left to right. For example for 9867 the output should be 9 8 6 7. The maximum number you have to cater for is 105. The leading zeros should NOT be printed so if the number is 105 the output should be 1 0 5 and NOT 0 0 0 1 0 5. 

Write a program that inputs numbers from the user till the user inputs a negative number. The program should then print the second maximum of all numbers and second minimum of all numbers that were input. The last negative number should not count towards the minimum. For example if the input is: 10 7 42 2 2 0 56 6 -1 

The output should be: second maximum is 10 and second minimum is 2

THONNY: This project focusses on dealing with strings of text. The starting point for this is a variable, ‘text’, that contains a random collection of words. The aim of this assignment is to iterate over the words and find the length of the longest word.

text = ("Lorem ipsum dolor sit amet, consectetur adipiscing elit. Aliquam rhoncus facilisis consequat. "
"Nam ultricies quis dolor vitae placerat. Integer in ante sit amet eros egestas porttitor. Phasellus "
"semper lectus dapibus volutpat consequat. Duis gravida sit amet ipsum eget maximus. Mauris condimentum "
"sem porta, aliquet mi ut, fringilla erat. Nunc maximus, magna ac volutpat mattis, tellus mi dignissim "
"dolor, vel rutrum nulla risus quis quam. Vestibulum ante ipsum primis in faucibus orci luctus et ultrices "
"posuere cubilia Curae; Integer ut urna nunc. Morbi id iaculis augue. "
"Proin malesuada scelerisque massa et tristique. Sed blandit nisi nunc, nec euismod nulla dignissim eu. "
"Pellentesque consequat mauris eu augue blandit, quis consectetur urna convallis. Phasellus eget molestie "
"libero, ac hendrerit eros. Quisque ut tellus sed metus finibus dictum. Nullam rhoncus, purus ac finibus "
"placerat, sapien sapien maximus nunc, a tempor lorem mauris eu eros. Integer gravida est eget lacinia "
"aliquam. Phasellus sem urna, varius ac quam a, fringilla vehicula neque. Duis faucibus purus arcu, ac "
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"amet ante commodo luctus. Etiam ac ullamcorper turpis, ac ornare urna. "
"Nulla sit amet posuere eros, eget viverra dolor. Suspendisse potenti. Mauris scelerisque mauris id lectus "
"auctor ultrices. Vivamus sodales malesuada erat, in ornare felis auctor id. Curabitur at quam pellentesque, "
"pharetra sem a, pulvinar magna. Integer nisl mi, rhoncus eget urna eget, posuere accumsan risus. In nisi est, "
"condimentum vel ornare sit amet, semper ut nunc. Nam risus leo, maximus eu aliquet non, fringilla id ligula. In "
"metus ipsum, gravida in lectus eget, aliquam egestas ipsum. Fusce placerat cursus mi ultrices luctus. Maecenas eu "
"ipsum diam. Nullam nec augue a diam rhoncus lobortis at id sapien. Ut in erat laoreet, porta nunc quis, luctus "
"justo. Pellentesque dictum sit amet mauris et sodales. Morbi fermentum sem hendrerit, hendrerit ex eu, laoreet sem. "
"Nam at tristique quam. Aliquam erat volutpat. Quisque rhoncus augue a luctus hendrerit. Pellentesque at eros "
"ut nulla volutpat ullamcorper. Curabitur varius nisl hendrerit est rhoncus suscipit. Duis gravida erat sit "
"amet nunc maximus laoreet. Cras dictum quam eu pellentesque commodo. Phasellus non mauris non dolor tincidunt "
"ultrices et in eros. Aenean quis enim mollis, aliquet lorem a, commodo leo. Phasellus elementum quis quam "
"eget condimentum. Nam convallis, enim id faucibus ornare, augue erat rhoncus eros, at vehicula lacus mi sit amet "
"leo. Mauris libero mi, commodo blandit consectetur et, bibendum id magna. In hac habitasse platea dictumst. "
"Sed in diam ut neque pretium gravida. "
"Nullam venenatis elit nec quam lobortis, nec rutrum justo ullamcorper. Pellentesque eleifend lacus elit, "
"nec gravida purus lacinia in. Cras imperdiet, dui in elementum feugiat, est mauris dignissim quam, in facilisis "
"purus lorem vel velit. Suspendisse potenti. Duis a venenatis enim. Vestibulum vitae neque odio. Ut eget ex at "
"libero vehicula faucibus. "
"Integer placerat lobortis sem, a ullamcorper nunc pharetra quis. Integer id consequat mauris, ac rhoncus "
"purus. Nunc sit amet sodales ante, eget rutrum odio. Nullam elementum pretium velit et facilisis. Duis "
"porttitor quam a pharetra ullamcorper. Donec sollicitudin blandit sem, ut rhoncus leo feugiat in. Morbi quis "
"dui a massa sagittis mattis. Curabitur malesuada, eros nec pharetra fermentum, diam nulla euismod nulla, "
"rutrum hendrerit mi nisi feugiat est. Vivamus diam est, iaculis et orci non, fringilla hendrerit nulla. Etiam "
"consectetur eros libero, a ultrices magna blandit quis. Proin eu augue vel ante convallis viverra et sodales "
"magna. Nullam ullamcorper arcu at justo lobortis, at malesuada risus gravida. Curabitur sapien est, tristique "
"in varius eget, consequat a leo. ")

Following a rather lengthy but stringent interview process, you have been selected as the project manager for the “Web-Enhanced Communications Systems” Project. You have previous project management and systems analysis experience within the company with some experience in web technology. You wasted no time and started to put the project team together. You knew you would have to develop a survey to solicit input from all the relevant stakeholders with regards to the new system and make sure it meets the intended purpose for which this project is undertaken. BMHS has enlisted the service of Mark McGrath, a reputable web consultant for his advice and expertise. Mark has agreed to come in 2 hours a week for the first 3 months and then as and when required as the project progresses. The project team is required to work closely with him to tap the most out of this engagement – after all, he charges $200 an hour! Recall from running case 1 that this initiative is to develop a Web-based application to improve development and delivery of products and services. BMHS Board of Directors is very enthusiastic about this project and has approved a $2 million budget for this project. It is estimated that this system would save the company about $1.5 million each year for four years after implementation. It will also have the potential to significantly improve customer service and expand BMHS customer base. The system is estimated to take one year to complete with an estimated ballpark figure of $2 million to develop and an additional 10 percent of development costs ($200,000) each year to maintain over the next 4 years. Through the convergence of Web technology, wireless networks, and portable client devices, the system will be able to leverage Internet connectivity to support communications services and boost its ‘web presence’ for people, places and things. In addition, BMHS directors’ strategic vision is to be the leader in health research and development as well as in the forefront in providing community health services. In particular, it is envisaged that this web-enhanced health communication system would: • Allow customers and suppliers to provide suggestions, enter orders, view the status and history of orders, • Allow customers and suppliers to use electronic commerce capabilities to purchase and sell their products. • Allow Web-based communication between employees, customers, and suppliers in order to improve development and delivery of health care products and services.Provide a platform for health and scientific research where the medical community could collaborate and foster research and innovation. Support delivery of health care services to indigenous communities in remote places throughout Australia. (By allowing medical specialists to interact with Aboriginal health workers or remote local health care providers using web-supported videoconferencing and related technologies.) After consultation with experts and users, you have drafted out the following attributes and points to consider. You are planning to discuss these with your team in your next meeting:  The Web-Enhanced Communications Systems will be launched in the BMHS standard business theme built in the Drupal content management system (CMS) and work across mobile, tablets, and other devices.  Ensure adherence to BMHS policies and standards for the web, including accessibility, brand policy, and security.  The system will use the BMHS Bios System for shared bios which means information entered once will appear in multiple places;  Thoughts have to be put into site organisation, website strategy, and content advisement to make the website user-friendly and meet audience needs and organisational goals  Ease of use for users of the system and consistency in user experience across the different interface, making it easier for audience to find information without the need to learn how to navigate each page/site  Ease of use for non-technical content contributors—the content management system (CMS) should use a WYSIWYG editing tool, similar to Microsoft Word. As such, knowledge of HTML and other web programming skills is not required to update the sites. This helps ensure that the site will be maintained after its initial launch by administrative support and other job functions typically tasked with making updates to unit websites.  Ensure that website hosting and technical infrastructure does not violate the Australian privacy act as well as the HIPAA as BMHS has dealings with their US counterparts. (HIPAA = Health Insurance Portability and Accountability is United States legislation that provides data privacy and security provisions for safeguarding medical information.)  The site for the system will use responsive design, meaning they The site for the system will use responsive design, meaning they will adapt to new technology and screen sizes and thus works seamlessly on mobile and other devices.  Training and support for content contributors as well as staff using the system. It would probably be ideal to have online manuals and interactive online tutorials for remote users.

***Develop a requirements traceability matrix for the “Web-Enhanced Communications Systems” Project. You should include at least eight requirements, identifying whether it is functional or non-functional requirements.

The function 'make_enzyme_threads' has a memory bug. Fix this by simply re-ordering the lines in this function. It is simple fix but may take a while for you to find it. As a hint, you may want to pay attention to the addresses of the pointers that are passed to the individual enzymes

#include "enzyme.h"

int please_quit;
int use_yield;
int workperformed;

// The code executed by each enzyme.
void *run_enzyme(void *data) {
/* This function should :
1. Cast the void* pointer to thread_info_t* (defined in enzyme.h)*/

   thread_info_t *inp;

   inp = (thread_info_t *)(data);

/*2. Initialize the swapcount to zero*/

   int swapcount = 0;

/*3. Set the cancel type to PTHREAD_CANCEL_ASYNCHRONOUS (see pthread_setcanceltype)*/

   void *cancel_type = PTHREAD_CANCEL_ASYNCHRONOUS;

/*4. If the first letter of the string is a C then call pthread_cancel on this thread.
(see also, pthread_self)
Note, depeneding on your platform (and specifically for macOS) you have
to replace the call to pthread_cancel with
pthread_exit(PTHREAD_CANCELED) in order to make the cancel test
pass.*/

   if (s[0]) == 'C')

       pthread_cancel(pthread_self());

/*5. Create a while loop that only exits when please_quit is nonzero
6. Within this loop: if the first character of the string has an ascii
value greater than the second (info->string[0] > info->string[1]) then
- Set workperformed = 1
- Increment swapcount for this thread
- Swap the two characters around
7. If "use_yield" is nonzero then call pthread_yield at the end of the loop.
8. Return a pointer to the updated structure.
*/
       while (please_quit == 0) {

           if (s[0] >s[1]) {

               workperformed = 1;
               threadswapcount++;
               char c;
               c = s[0];
               s[0] = s[1];
               s[1] = c;

           }

           if (use_yield != 0)

               pthread_yield(pthread_self());

       }
while(0) {
pthread_yield();
};
return NULL;
}

// Make threads to sort string.
// Returns the number of threads created.
// There is a memory bug in this function.
int make_enzyme_threads(pthread_t * enzymes, char *string, void *(*fp)(void *)) {
int i, rv, len;
thread_info_t *info;
len = strlen(string);
info = (thread_info_t *)malloc(sizeof(thread_info_t));

for (i = 0; i < len - 1; i++) {
info->string = string + i;
rv = pthread_create(enzymes + i, NULL, fp, info);
if (rv) {
fprintf(stderr,"Could not create thread %d : %s\n", i, strerror(rv));
exit(1);
}
}
return len - 1;
}

// Join all threads at the end.
// Returns the total number of swaps.

int join_on_enzymes(pthread_t *threads, int n) {

   int i;
   int totalswapcount = 0;

   //initialize the cancelled count
   int cancelcount = 0; // just to make the code compile

                       // you will need to edit the code below

   for (i = 0; i<n; i++) {

       void *status;
       int rv = pthread_join(threads[i], &status);

       /*if join status is non zero, then cant join the threads
       Thus the condition is to check whether rv estimated
       Above has a non zero value*/
       if (rv != 0)
       {

           fprintf(stderr, "Can't join thread %d:%s.\n", i, strerror(rv));
           continue;
       }

       //if status is PTHREAD_CANCELED
       if ((void*)status == PTHREAD_CANCELED)
       {
           //increment the cancelled count
           cancelcount++;
           continue;
       }

       else if (status == NULL)
       {
           printf("Thread %d did not return anything\n", i);
       }

       else
       {
           printf("Thread %d exited normally: ", i);// Don't change this line

                                                   //need to cast the status with thread_info_t
                                                   //and then get the swap count as thread swap count
           int threadswapcount = (thread_info_t *)status->swapcount;

           // Hint - you will need to cast something.
           printf("%d swaps.\n", threadswapcount); // Don't change this line
           totalswapcount += threadswapcount;// Don't change this line
       }

   }
   return totalswapcount;
}

/* Wait until the string is in order. Note, we need the workperformed flag just
* in case a thread is in the middle of swapping characters so that the string
* temporarily is in order because the swap is not complete.
*/
void wait_till_done(char *string, int n) {
int i;
while (1) {
pthread_yield();
workperformed = 0;
for (i = 0; i < n; i++)
if (string[i] > string[i + 1]) {
workperformed = 1;
}
if (workperformed == 0) {
break;
}
}
}

void * sleeper_func(void *p) {
sleep( (int) p);
// Actually this may return before p seconds because of signals.
// See man sleep for more information
printf("sleeper func woke up - exiting the program\n");
exit(1);
}

int smp2_main(int argc, char **argv) {
pthread_t enzymes[MAX];
int n, totalswap;
char string[MAX];

if (argc <= 1) {
fprintf(stderr,"Usage: %s <word>\n",argv[0]);
exit(1);
}

// Why is this necessary? Why cant we give argv[1] directly to the thread
// functions?
strncpy(string,argv[1],MAX);

please_quit = 0;
use_yield = 1;

printf("Creating threads...\n");
n = make_enzyme_threads(enzymes, string, run_enzyme);
printf("Done creating %d threads.\n",n);

pthread_t sleeperid;
pthread_create(&sleeperid, NULL, sleeper_func, (void*)5);

wait_till_done(string, n);
please_quit = 1;
printf("Joining threads...\n");
totalswap = join_on_enzymes(enzymes, n);
printf("Total: %d swaps\n", totalswap);
printf("Sorted string: %s\n", string);

exit(0);
}

Question 1:

Some people are more susceptible to hypnosis than others. People who are highly suggestible have a vivid imagination and fantasy life. This has led researchers to hypothesize that the ability to recall dreams will also be affected by hypnotic susceptibility (HS). Dr. Flowers wanted to test this hypothesis. Using the Stanford Scale of Hypnotic Susceptibility, she assigned participants to low, medium, and high susceptibility groups. Dr. Flowers asked all participants to keep a dream diary. At the end of 1 month, the diaries were collected and Dr. Flowers counted the number of dreams each person had recalled.

What is the alternative research hypothesis for this study?

What is the null research hypothesis for this study?

What is the first word in the alternative statistical hypothesis for any experiment with three levels of a single IV?

What is the null statistical hypothesis for the study of dream recall among groups with different levels of hypnotic susceptibility?

μlowHS = μmedHS = μhighHSμlowHS = μmedHS = μhighHS

μlowHS ≠ μmedHS ≠ μhighHSμlowHS ≠ μmedHS ≠ μhighHS

In SPSS, analyze the data in the table using a one-way ANOVA.

Use the results in the output box labeled Descriptives to complete the following chart, which you will then use to answer the following 6 questions.

What is the mean of the low HS group? (2 decimal places)

What is the mean of the medium HS group? (2 decimal places)

What is the mean of the high HS group? (2 decimal places)

What is the SD of the low HS group? (2 decimal places)

What is the SD of the medium HS group? (2 decimal places)

What is the SD of the high HS group? (2 decimal places)

Using the results in the output box labeled ANOVA, answer the next two questions.

What is the F ratio reported in the source table? (2 decimal places)

What is the p value reported in the source table? (located in the column labeled Sig)(3 decimal places)

In SPSS, conduct a post hoc test using Tukey's HSD to determine which groups differ significantly.

Complete the chart below to help you answer the following 6 questions.

What is the absolute value of the mean difference between the low and the mediumhypnotic susceptibility conditions? (2 decimal places)

What is the absolute value of the mean difference between the low and the high hypnotic susceptibility conditions? (2 decimal places)

What is the absolute value of the mean difference between the medium and the high hypnotic susceptibility conditions? (2 decimal places)

What is the p value for the comparison between the low and the medium hypnotic susceptibility conditions? (3 decimal places)

What is the p value for the comparison between the low and the high hypnotic susceptibility conditions? (3 decimal places)

What is the p value for the comparison between the medium and the high hypnotic susceptibility conditions? (3 decimal places)

What are the F-obtained values?

What are the between-groups MS? (3 decimal places)

What are the within-groups MS? (3 decimal places)

What are the significance levels?

Which component of the F ratio is affected by the distance between the mean?

Which component of the F ratio is affected by the amount of variability within the group?

Which component of the F ratio is affected by the amount of variability within the group?

Write a complete APA-style conclusion.

This is a template you will use to report the results of Experiment 1 of this study in the same format in which you would write the Results section of an APA-style lab report or journal article:

Based on a one-way ANOVA conducted in SPSS (Version 25), hypnotic susceptibility (HS) does /does not have an effect on the number of dreams recalled, F(#,##) = ###, p= ###. Tukey’s post hoc tests revealed that fewer / the same number of / more dreams are recalled in the high HS condition (M= ###) than / as in the low HS condition (M= ###), p= ###. There is a / no significant difference between the number of dreams recalled in the low HS condition and the medium HS condition (M= ###), p= ###. There is also a / no significant difference between the number of dreams recalled in the medium HS condition and the high HS condition, p= ###. Therefore, the results confirm that high HS is associated with fewer / the same number of / more dreams being recalled when compared to those with low HS.

This laboratory assignment involves implementing a data structure called a map. A map associates objects called keys with other objects called values. It is implemented as a Java class that uses arrays internally.

1. Theory.

A map is a set of key-value pairs. Each key is said to be associated with its corresponding value, so there is at most one pair in the set with a given key. You can perform the following operations on maps.

• You can test if a key has a value in the map.

• You can add a new key-value pair to the map.

• You can get the value that is associated with a given key.

• You can change the value that is associated with a given key.

For example, the keys might be String’s that are the English words for numbers. The values might be Integer’s that are the numbers corresponding to those words. If you give the map an English word (like "ten") then you can get back its corresponding number (like 10).
      The maps for this assignment use arrays, and they work by doing linear search on those arrays. As a result, if a map has n pairs, then its operations may need at most O(n) key comparisons. However, there are better ways to implement maps, using data structures that we have not yet discussed in this course. These require only O(log n) or even O(1) key comparisons.

2. Implementation.

You must write a Java class called Map that implements a map. To simplify grading, your class must use the same names for things that are given here. Your class Map must have two generic class parameters, Key and Value, so it looks like this. Here Key is the type of the map’s keys, and Value is the type of the map’s values.

class Map<Key, Value>
{
  ⋮
}

Within the class Map, you must have two private arrays called keys and values. The array keys must be an array whose base type is the class parameter Key. The array values must be an array whose base type is the class parameter Value. Suppose that a key k is found at the index i in the array keys. Then the value associated with k is found at the same index i in the array values. Do not try to use only one array, because that will not work.
      You must also have a private integer variable called count that records how many elements of the arrays are being used. You may also need other private variables that are not mentioned here.
      Your class must have the following methods. Most of them use count, keys, and values somehow. Some methods are public and others are private. The private methods are helpers for the public methods; they may make your code easier to write. Also, any key may be null, and any value may be null. This will affect how you test if keys are equal.

public Map(int length)

Constructor. If length is less than 0 then you must throw an IllegalArgumentException. Otherwise, initialize an empty Map whose keys and values arrays have length elements. (Recall that you must make arrays of Object’s, then cast them to the appropriate types.)

public Value get(Key key)

Search the array keys for an element that is equal to key. If that element is at some index in keys, then return the element at the same index in the array values. If there is no element equal to key in keys, then throw an IllegalArgumentException.

private boolean isEqual(Key leftKey, Key rightKey)

Test if leftKey is equal to rightKey. Either or both may be null. This method is necessary because you must use == when leftKey or rightKey are null, but you must use the equals method when both are not null. (Recall that null has no methods.)

public boolean isIn(Key key)

Test if there is an element in keys that is equal to key.

public void put(Key key, Value value)

Search the array keys for an element that is equal to key. If that element is at some index in keys, then change the element at the same index in values to value. If there is no element in keys that is equal to key, then add key to keys, and add value at the same index in values. If keys and values are full, so you cannot add key and value, then throw an IllegalStateException.

private int where(Key key)

Search the array keys for an element that is equal to key. Return the index of that element. If there is no element equal to key in keys, then return −1.

When you compile your program, you may see the following ‘‘warning’’ messages from javac. Ignore them. As discussed in the lectures, these messages appear because Java does not implement class parameters (the names between < and >) correctly.

Note: your file name.java uses unchecked or unsafe operations.
Note: recompile with -Xlint:unchecked for details.

For the past several years, Steffy Lopez has operated a part-time consulting business from his home. As of July 1, 2018, Steffy decided to move to rented quarters and to operate the business, which was to be known as Diamond Consulting, on a full-time basis. Diamond Consulting entered into the following transactions during July:

Record the following transactions on Page 2 of the journal:

Please read the following article: A Technology That Reveals Your Feelings

Memo to students: Think you can fool your teacher when you're not paying attention? Think again. In the not-too-distant future, a laptop flashing a graph tracking classroom attention in real time could give you away. By the end of 2015, as many as 1,000 schools in the U.S. and Canada could be using a technology that monitors students, says Rich Cheston, chief solutions officer at Stoneware, a Lenovo unit that makes classroom management software. Stoneware will soon incorporate emotions analytics into one of its products to track attention in the classroom. A cousin of facial recognition, emotions analytics relies on video of facial expressions. The teachers "can see it as they are teaching, so they can determine when to take corrective action," Cheston says. His product will come out in September, and then he will start marketing it to schools. Over the past few years, big companies, including Unilever and Coca-Cola, have used emotions analytics to better understand customers' likes and dislikes and to tailor marketing and advertising campaigns. About a dozen companies are making and supporting such software, according to researcher Crone Consulting. The market leaders include Emotient, a startup in San Diego, and Affectiva in Waltham, Mass. Unilever relies on Affectiva's emotions analysis to assess customer reactions to its ads. Emotient's software will be used in Stoneware's classroom product. And Emotient tested its software with the NBA's Golden State Warriors to study how spectators respond to activities such as a dance cam. The market for emotion-analyzing software could reach $10 billion worldwide in five years, up from more than $100 million in 2016 and less than $20 million this year, Crone Consulting says.

The software, which can be used in PCs, cars (to alert drivers when they get distracted), and smartphones, works with live or recorded video of facial expressions. How the different companies' products work varies. Affectiva's software homes in on points on a face, such as the comers of eyes or eyebrows. Algorithms also detect texture variations that occur when people laugh, frown, or smirk. Accessing its database of 3 .2 million face videos, Affectiva says it can identify facial expressions and emotions with high accuracy. Its software processes video footage frame by frame to report the various emotional states of a user, from happiness to sadness, or from surprised to unfazed. It tests its emotion-recognition algorithms against images in its database. "This is a passive way of not asking someone a question but simply observing their emotional response," says Nicholas Langeveld, Affectiva's chief executive officer. Affectiva says its analysis has a 90 percentplus accuracy rate for some emotions. Startup Beyond Verbal, founded three years ago in Tel Aviv, has a database of 1.5 million voices. The company analyzes vocal intonations to identify more than 300 mood variants in more than 40 languages with 80 percent accuracy.

Susan Etlinger a data intelligence analyst at brand consultant Altimeter Group says the software needs to be proven. "How can you verify whether someone was actually feeling joy or anger at the particular moment?" she asks. There also are ethical considerations, because those being studied may not know it, she says. The field of facial-emotions analytics dates to the 1970s and the work of American psychologist Paul Ekman. "I thought it was going to be used in research," says Ekman, who along with several colleagues developed a way to measure facial movements. Emotient has adapted his system. Ekman says he worries that some of the technology's uses could infringe on privacy rights. After he threatened to resign from Emotient's board, where he's an adviser, Ekman said the company is now addressing his concerns. Microsoft has developed prototype consumer apps that track emotions via a skin sensor on an activity band and a heart-rate monitor. They alert users when stress levels are high and offer tips for coping with the stress. Some employees in the research division developing the apps share their emotions through desk crystals, which change color when users are sad, happy, stressed, or bored. "Your colleague could help you out, make you feel better," says Mary Czerwinski, a research manager at Microsoft. "But as soon as one of their bosses came in, they covered it up."

Write a 500 Word document responding to the following questions:

Facial-emotions analytics technology’s use could infringe on privacy rights. As an operations management consultant, what would you suggest to respect privacy and ensure the success of this technology?

Emotion analyzing software that works with live or recorded video of facial expressions can be used in PCs, cars (to alert drivers when they get distracted), and smartphones. How the different companies’ products work varies. From an operations management perspective, discuss the pros and cons as you compare and contrast the approaches used by Affectiva, Emotient, and Stoneware.