Fill-in-the-Blank If a file fails to open, the file stream object will be set to __________.
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If a file fails to open, the file stream object will be set to __________.
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- 3) Implement the if __name__ == "__main__" : block at the bottom of this file to do the following: 3a) The if main block at the bottom should get the name of the highway graph file from the command line arguments. See the video in Python that explains how to get command line arguments. 3b) Call your parse_highway_graph_file function to parse that file, and to construct a WeightedGraph object from it. 3c) Write some code that outputs (with print statements) the degree of each vertex. You can have one vertex per line, indicating its id (just its 0-based index) followed by its degree. IMPORTANT: Your parse_highway_graph_file function should NOT produce any output. You will have code in your if main block that will have the print statements. The WeightedGraph class has a degree method, inherited from Graph that will return to you the degree of a vertex.The symbol for the stream insertion operator is______________Requested files: InClass02.java, input.txt Maximum number of files: 6 Create a simple java program that reads all the content in a .txt file, the user will enter the filename to be opened. In this case, the file will contain multiple lines of student details with each line containing a single student detail. Your task is to then create a student class that models the firstname, lastname, year of birth and gender of every student. The student class should further be able to assign every student created with a student number using a class variable[format is 2022000X, X is a number such as 1,2..] and be able to calculate the age of each student. Within the driver class add all the students read from file into an ArrayList and then print the first and last student in the list. You are additionally expected to deal with most common exceptions(See samples below) [HINT: DO NOT PROVIDE A PATH BUT RATHER ONLY OPEN THE FILE WITH RELATIVE PATH/FILENAME] Sample run 1: Enter filename:…
- Sample run: Your 1st vector contains the following elements January February March April May June July August September October November December Your 2nd vector contains the following elements May June JulyreadEmpFromFile Implement a function readEmpFromFile that takes a FILE * as the only argument and returns a pointer to a struct employee. This function should read the information from the file (reversing what writeEmpToFile does), create a new employee and fill in the data. If the FILE has no more info (is at end of file), this function should return NULL. This function must also ensure any employee actually created (not the NULL) is added to the array (as is done in createEmployee). Change main to load employees from a file using a command called LOAD which is given to the program using (using your readEmpFromFile function you just wrote). void main(void) { int end = 1; char * command; char buff[256]; char * findEmp; char findBuff[256]; char * sortType; char sortBuff[256]; char hire[] = "HIRE"; char list[] = "LIST"; char quit[] = "QUIT"; char find[] = "FIND"; char fire[] = "FIRE"; char _sort[] = "SORT"; char salary[] =…If a nonrecoverable error occurs during a stream operation, the bad member functionwill return true. T/F
- 2. Message Decoder Create a MessageDecoder program that reads from a file (one character at a time), and writes all non-numeric characters to a file called DecodedMessage.txt, displaying a secret (and motivational) message. ***Hint: .read() will return an int, but this can be type cast as a char. int and char are interchangeable (via type-caşting). You could run a loop on a condition like charInFile != (char) -1 Don't forget that -1 is a special character that denotes the end of a file!Put the class definition in EV.h and the implementation of the constructors and functions in EV.cpp 1. Define a class called "EV", that represents the information of an electric vehicle. The EV is defined with these attributes: model (string), range(int), unit (string) and year (int). Functions of the EV class must perform the following operations: 1. A default constructor which sets all the numeric instance variables to zero. 2. A constructor with 4 parameters which sets the 4 instance variables to the corresponding values passed. 3. Implement a getter function for each of the 4 instance variables that will return the value of the instance variable. For example, the getX() function for the instance variable model must be called getModel(). 4. Implement a setter function for each instance variable that will assign to the instance variable to the value passed. For example, the setX() function for the instance variable model must be called setModel(). 5. An info function: this function…CH 6: Debug Files A high school is holding a recycling competition, and this program allows a user to enter a student's year in school (1 through 4) and number of cans collected for recycling. Data is entered continuously until the user enters 9 for the year. After headings, output is four lines -- one for each school year class. start Declarations num year num cans num SIZE=4 num QUIT = 9 num collectedArray[SIZE] = 0, 0, 0 string HEAD1 = "Can Recycling Report" string HEAD2 = "Year Cans Collected" output "Enter year of student or ", QUIT, " to quit " input year while year QUIT output "Enter number of cans collected" input cans collectedArray[year] = collectedArray[year] + cans output "Enter year of student or ", QUIT, " to quit " input year endwhile output HEAD1 output HEAD2 year = 1 while year < SIZE year = year + 1 endwhile stop
- Searching - a user should be able to search by ID or by item name create only one menu item for searching a user should be able to enter the name of the item using any case, (for example, sTRolleR) you may wish to store items in all lower/upper case to expedite the search write one search function that can search by ID and name and goes through the array of structs/objects only once show the entire record if found or an appropriate message if not Sorting - sort by any field write one function to sort by any field using a parallel array of pointers use Bubble Sort is not the most effective but the easiest to modify. do not copy and paste sort code five times into the same function. sorting using pointers is faster because you have to swap pointers only, which are normally stored in 4 bytes each; it also allows you to preserve the original order of the items If you choose to have a submenu, a submenu must have an option to go back to the previous menu or main menu if a user got…Part II: Image Representation An image is an array, or a matrix, of pixels (picture elements) arranged in columns and rows. RGB is one of the models used in color pixels. In a color image, each RGB pixel is an integer number which contains the mixture of red, green and blue colors. In this assignment, you will be provided with an image data file, image.dat. The first line in data file contains the height (rows) and width (columns) of the image. The following lines gives the red, green and blue color integer values for each pixel. The following sample.dat is given as an example: (The given example can be seen on the picture down) According to this input file, the image has 4 rows and 2 columns. The pixel at [0][0] has red value 117, green value 117 and blue value 245. Write a Java program that reads from the given input file and creates an RGB image object with the given width and height. Then, it'll read red, green and blue color values for each pixel from data file, and calculate RGB…GRADEBOOK PROJECT Attached Files: Gradebook.docx (18.278 KB) Gradebook Practicla Project: use the attached code as an exaple and modify where neccesary to fit your situation Write a program that uses an array of string objects to hold the five student names, an array of five characters to hold the five students' letter grades, and five arrays of four doubles to hold each student's set of test scores. The program should allow the user to enter each student's name and his or her four test scores. It should then calculate and display each student's ayerage test score and a letter grade based on the average. Input Validation: Do not accept test scores less than 0 or greater than 100. Use the following test score grades Test Score Letter Grade 80-100 -> A 70-79 -> B 60-69 -> C 50-59 -> D OO HUAWEI P30 lite TRIPLE CAMERA Activate Windows dolto vers