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10.
C2
In terms of Computer systems. Please answer the below and include working out.
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- I will give you a file inventory.txt The file will have the following specifications: Each record consists of two lines. The first line contains the name of the product, which may be more than one word long. The second line contains the wholesale price as a decimal, the markup as a percentage, and three quantities, for counter, shelf, and warehouse. If the first line of a record contains the word END all by itself, that is the end of the file. Your task, in c++, is to read each record into the program, as a string for the name, and numbers for the price and markup, and as an array of numbers for the quantities. Then calculate the total profit for each item: (wholesale price) * (markup, converted into a decimal) * (total quantity). Print out a report on one line for each item: Name, total profit. Format the output nicely: names should fit in 30 characters and the prices should line up and should have two decimal places. Hints: You’ll want to use getline to read multi-word product…Professor Potter, a punning pedantic, practices puzzling her students. She has left a secret message, of unknown length, encoded in a file for you to unravel. The setup is simple: each line of the file contains one char and one non-negative integer. The key to reading the message is organizing the characters in the proper order. The integer indicates the position of the character within the message. For example: e 2 b 1 a 3 h 5 c 4 spells 'beach' when unraveled. Write a program that will: Ask the user for the name of a file Check to see that the file exists and contains some data. Open and read this file exactly once Using your MessageDecoder class, unravel and display the message Offer to do it again on another file Required classes: You will create and submit 2 classes: MessageDecoder class: Responsible for converting a scrambled message file into plain text. Contains a public method getPlainTextMessage() that returns the String object. The scrambled file must be scanned only once…JAVA:Use the "natural split" algorithm on the file split.txt and answer the following question: How many elements are in the first list? (Split into two files.) Splt.txt 200494 774 644 345 521 61 27 28 584 569 66 857 210 2 211 675 548 596 188 647 671 517 408 475 615 113 731 522 850 17 640 940 556 517 602 935 76 578 880 428 168 394 381 497 247 368 137 138 619 973 895 106 838 45 921 800 681 660 490 427 937 917 786 959 152 604 837 749 684 963 926 963 988 492 385 458 788 7 62 46 932 996 787 634 34 616 71 128 686 578 923 532 933 545 100 224 895 595 342 933 934 797 120 565 495 884 237 648 843 599 157 843 192 279 301 649 382 881 667 178 126 746 44 601 22 52 769 708 991 83 447 786 525 168 328 922 153 367 22 689 834 774 93 110 547 597 644 726 237 20 370 573 391 225 750 897 956 839 951 455 8 509 746 338 576 276 277 341 274 891 723 53 966 271 50 990 493 823 833 306 619 461 768 832 736 759 920 451 549 833 911 123 907 225 252 179 177 272 747 859
- Examine the R code and consult the associated dataframe df shown below. What size is being stored in the variable size? size=df[1,2] a. No size is being stored b. 0.12 Mb c. Chr 1 d. 0.17 MbIn a dataframe, Create a header list of ["A", "B", "CT Paragraph V BI U A EV EM + v | 33JAVA: Use natural split to split the bonus_txt file, then use natural merge to merge the two resulting files back together. What is the value at index 100? bonus.txt file 200 998 744 735 402 22 387 547 944 76 50 85 395 603 121 453 552 27 658 576 961 975 436 235 111 691 870 392 391 340 660 947 522 664 771 575 275 847 222 992 68 763 975 14 226 763 114 108 502 997 430 654 730 857 443 60 339 500 910 961 824 571 835 196 152 170 78 927 537 857 690 282 955 962 244 144 287 749 536 268 975 81 199 744 669 31 999 905 384 537 753 228 344 609 134 363 819 774 859 479 945 406 120 265 732 371 445 488 210 907 576 805 916 14 344 579 780 686 7 844 742 225 938 172 348 513 122 153 955 565 404 362 101 899 38 218 68 283 686 860 654 159 618 259 690 646 580 69 910 362 450 373 342 398 547 336 539 745 224 972 585 95 146 673 19 459 500 906 520 278 208 459 430 721 131 960 988 705 134 941 440 743 847 601 18 118 945 537 178 23 739 167 354 268 963 248 934 844 664 886 128
- Each student record in the data area where pupil information is stored has the following format:The student ID is stored in the first nine bytes in ASCII.The course stamp is the following byte.The section number comes after that. Such student records have been sequentially loaded into memory starting at address $10000 and number well over 300. A fake record with the section identifier $FFFF is the last record to load, indicating the conclusion of the records. Create the GetMax assembler subroutine to search the entire list for the highest score. In the event of a tie, the top pupil on the list should be identified. the beginning address of the subroutine shouldThe owner of Quick Breakfast Cafe (qbc), has provided a text file (see given qbc_menu_prices.txt) that contains menu items, separated by a space, the delimiter. Each record in the file contains the following two fields: Item Description and the Sale Price. Read the file and present the user with a Quick Breakfast Cafe Menu, which may look like this: Quick Breakfast Cafe --Menu-- [1] Coffee $2.20 [2] Tea $1.05 [3] Milk $1.5 [4] Donuts $2.85 [5] Bagel $3.25 [6] Logout Prompt the user for the item and quantity they wish to purchase, which may look like: Enter your selection [1 - 6]: 1 Enter the quantity you wish to purchase: 1 To simplify the program, a user can only purchase one item at a time. A receipt is printed after each transaction, which includes the item, qty and price, followed by the total price including an 8% tax. The receipt may look like: Quick Breakfast Cafe -- Sales Receipt -- Item Qty Cost Coffee 1 $2.20 Total Cost With %8 Sales Tax: 2.38 After each transaction, the…you will need to create the following textbook specified files. Use vi to create these files: test-file1 test-file2 test-file3 test-g test-sor respected test-u west coast alpha1 alpha2 practice caffeine names.tmp numbers.tmp How do you get the answer to the following with four figures to the right of the decimal point:Add 429 to 79, divide that sum by 162, then raise that result to the 15th power.
- In R’s built-in datasets library is the data frame quakes. Make sure you can access this object and view the corresponding help file to get an idea of what this data represents. Then, do the following: 1. Select only those records that correspond to a magnitude (mag) of greater than or equal to 5 and write them to a table-format file called q5.txt in an existing folder on your machine. Use a delimiting character of ! and do not include any row names. 2. Read the file back into your R workspace, naming the object q5.dframe.Using a text editor, create a file that contains a list of at least 15 six-digit account numbers. Read in each account number and display whether it is valid. An account number is valid only if the last digit is equal to the remainder when the sum of the first five digits is divided by 10. For example, the number 223355 is valid because the sum of the first five digits is 15, the remainder when 15 is divided by 10 is 5, and the last digit is 5. Write only valid account numbers to an output file, each on its own line.*Note that the contents of the file AcctNumsIn.txt will change when the test is run to test the program against different input. AcctNumsIn.txt 345619789400871208901156984334723422172257100000273699237485761200555500936716763542999995 import java.nio.file.*;import java.io.*;import java.nio.channels.FileChannel;import java.nio.ByteBuffer;import static java.nio.file.StandardOpenOption.*;public class ValidateCheckDigits {public static void main(String[] args) {Path…Using a text editor, create a file that contains a list of at least 15 six-digit account numbers. Read in each account number and display whether it is valid. An account number is valid only if the last digit is equal to the remainder when the sum of the first five digits is divided by 10. For example, the number 223355 is valid because the sum of the first five digits is 15, the remainder when 15 is divided by 10 is 5, and the last digit is 5. Write only valid account numbers to an output file, each on its own line.*Note that the contents of the file AcctNumsIn.txt will change when the test is run to test the program against different input. AcctNumsIn.txt345619789400871208901156984334723422172257100000273699237485761200555500936716763542999995 ValidateCheckDigits.javaimport java.nio.file.*;import java.io.*;import java.nio.channels.FileChannel;import java.nio.ByteBuffer;import static java.nio.file.StandardOpenOption.*;public class ValidateCheckDigits {public static void…