Before using the ReadLine function on a StreamReader object, it's important to make sure the property's value isn't set to "true" (meaning the object has reached the end of its stream).
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Before using the ReadLine function on a StreamReader object, it's important to make sure the property's value isn't set to "true" (meaning the object has reached the end of its stream).
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- True or False: C++ uses negative values to represent "False" and positive values to represent "True". It is possible that the body of a while loop may not execute at all.C++ Add a search command that asks the user for a string and finds the first line that contains that string. The search starts at the first line currently displayed and stops at the end of the file. If the string is found, the line that contains it is displayed at the top. In case the user enters a string X that does not occur in the file, the program should print the error message: ERROR: string "X" was not found.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!
- Computer Science Part C: Interactive Driver Program Write an interactive driver program that creates a Course object (you can decide the name and roster/waitlist sizes). Then, use a loop to interactively allow the user to add students, drop students, or view the course. Display the result (success/failure) of each add/drop.C lanaguge Managing Student Information! C LANGUAGE We're going to build a student information management system. The user should be shown a menu with four options: display student initials, display student GPAs, add students, or exit the program. If the user chooses to exit, the program should end. Otherwise, if the user chooses to display the student initials, the contents of the students.txt file should be read, and just the student number and initials should be displayed to the user in a tabular format. If the user chooses to display the student GPAs, the contents of the students.txt file should be read, and just the student number and GPAs should be displayed to the user in a tabular format. If the user chooses to add students, they should be prompted for the number of studnets they’d like to add. They should then be prompted that many times for a studnet number, a GPA, a first initial, and a last initial. Each of the new items should be saved to the students.txt file.…Data File: Example #1AAAAABBBBBCCCCCDDDDDAAEBCBAFBBCDCECDADDEFEEFFFExample #2AAATAABTBBBBCCCCTCDDTDDDAASAABBSBBCCSCCDSDDDEEEAEEFBFFFDDF Write a program that will give the user a brief introduction, then allow the user to type in the name of the file to be analyzed, the name of the data file to generate, and then process the data to match the output that is shown below. This DNA test measures the various parts of the sequence and assigns them a letter. While the letters could be anything from A to Z, the only letters that matter for this test are the letters {A,B,C,D} all other letters can be ignored completely. A sample will be tested, given a length of time and then tested again. Each time the scientist will generate a line of data. Here is one Example: Example #1 AAAAABBBBBCCCCCDDDDD AAEBCBAFBBCDCECDADDEFEEFFF At first glance the sample looks significantly different after the second test. But if you look at the data, you will note that since we only care about A,B,C,D’s that the…
- File redirection allows you to redirect standard input (keyboard) and instead read from a file specified at the command prompt. It requires the use of the < operator (e.g. java MyProgram < input_file.txt) True or FalseYour goal is to implement an application that reads a file, modify its content, and writes the modification back to the same file. The file includes 2 lines of integers. The first line indicates which integer on the second line has been selected (active). And the second line lists all the integers in the list (maximum of 10). Your application should have a menu that is constantly displayed on the screen (see the menu below). Right below the menu, the program should display list of all integers in the file (second line). Also, it should show which integer is currently selected (active) by displaying an arrow to its left. The user should be able to select a menu item by entering its associated key and pressing the Enter key on the keyboard. “Select Down” selects the next item in the list. If the item at the end of the list is selected, this option selects the first item in the list. “Select Up” selects the previous item in the list. If the first item is selected, this option selects the…Question: The overall grade in a course is determined from the grades of 3 midterms and a final exam, using the following scheme: Midterms: Midterms are graded on a scale from 0 to 20. The total of the 3 quizzes constitutes 50% of the course grade. Final exam: The final exams is graded on a scale from 0 to 100. The final exam constitutes 50% of the course grade. Write a computer program in a script file that determines the course grade for a student. The program first asks the user to enter the 3 midterms grades (In a vector) and the grade of the final. Then the program calculates a numerical course grade (a number between O and 100). The course grade is rounded to one decimal points. Sample Output: Please enter Midterm 1 grade : 30 Input should be between 0 and 20, Please enter Midterm 1 grade : 20 Please enter Midterm 2 grade : 15 Please enter Midterm 3 grade : 17.8 Please enter final exam grade: 80 The course grade is 66.4 Click Below Matlab Link: https://matlab.mathworks.com For…
- IN C++ Write code that: creates 3 integer values - one can be set to 0, the other two should NOT multiples of one another (for example 3 and 6, or 2 and 8) take you largest value and perform a modulus operation using the smaller (non zero) value as the divisor print out the result. create an alias for the string type call the alias "name" then create an instance of the "name" class and assign it a value using an appropriate cout statement - print out the value Please screenshot your input and output, as the format tends to get messed up. Thank you!Write a java code that does the following: Opens a file named NumberList.txt, uses a loop to write the numbers 1 through 100 to the file, and then closes the file. Opens the NumberList.txt file and reads all of the numbers from the file and displays them, and then closes the file. Opens the NumberList.txt file and reads all of the numbers from the file, calculate the sum of these numbers and displays their total. Opens a file named NumberList.txt for writing, but does not erase the contents of the file if it already exists.python programing: You are going to create a race class, and inside that class it has a list of entrants to the race. You are going to create the daily schedule of three or so races and populate the races with the jockey/horse entries and then print out the schedule. Create a race class that has The name of the race as a character string, ie “RACE 1” or “RACE 2”, The time of the race A list of entries for that race Create a list of of 3 (or 4) of those race objects(races) for the day For the list of entries for a particular race, make a entrant class (the building block of your entrants list) you should have The horse name The jockey name Now you need to Populate the structure (ie set up three races on the schedule, add 2-3 horses entries to each race. You can hardcode the entries if you want to, rather than getting them from the user, just to save the time of making a menu interface and whatnot. Be able to print the days schedule So example output would be…
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