4 25points File reading calculating and exception erro.pdf

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(4) (25points) File reading, calculating, and exception error handling questions. Assume a file contains a series of integers in file numbers.txt. You can find the file (numbers.txt) in canvas. First, copy the file into the same directory as this python program. Then, write a program that calculates the average of all the numbers stored in the file. Finally, your program needs to handle the exception with appropriate error messages. When everything goes well, the average of all the numbers =4.75 Modify the program to handle the following exceptions with messages (hint: modify your code one at a time to trigger one of the following exceptions and restore it before simulating another error. a) IOErroer: An error occurred while trying to read the file. [Errno 2] No such file or directoryi numbersitkt' b) ValueError: Non-numeric data found in the file could not convert string to float: alin c) Exception: An error occurred float division by zero.

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Assignment: C++ Write a program that reads a text file using binary mode file reading in C++. The program should prompt the user for the file path, then print out the file contents to the console. Open the file in binary mode and read the entire file contents using one statement into a char array. Then, in a loop, print one character at a time to the console from the char array The following code can be used to accomplish this task. Open the file in binary mode like this: inFile.open(filePath.c_str(), ios::binary); To get the file size, use the seekg and tellg operators like this: inFile.seekg(0, ios_base::end); int fileLen = inFile.tellg(); inFile.seekg(0, ios_base::beg); The first line moves the file cursor to the end of the file. The second line reads the byte position at that current location. The third statement moves the file cursor back to the beginning of the file so the data can be read from the beginning. After that, you can read the entire file contents into your char array in one statement then close the file: inFile.read(charArr, fileLen); inFile.close(); Example #1 Please enter the file path: C:\\Temp\\stuff.txt The file contents are: Twas brillig, and the slithy toves Did gyre and gimble in the wabe: All mimsy were the borogoves, And the mome raths outgrabe. Beware the Jabberwock, my son! Solution #include <iostream> #include <fstream> using namespace std; int main () { ifstream inFile; inFile.open (filePath.c_str(), ios::binary);// to open file //To get the file size inFile.seekg(0, ios_base::end); int fileLen = inFile.tellg(); inFile.seekg(0, ios_base::beg); //close the file inFile.read(charArr, fileLen); inFile.close(); return 0; } .

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Educational Objectives: After successfully completing this assignment, the student should be able to accomplish the following: Use a loop structure to read user input of unknown size through std::cin and store it in an array. Use conditional branching to selectively perform computational tasks. Declare (prototype) and define (implement) functions. Declare and define functions with arguments of various types, including pointers, references, const pointers, and const references. Call functions, making appropriate use of the function arguments and their types. Make decisions as to appropriate function call parameter type, from among: value, reference, const reference, pointer, and const pointer. Create, edit, build and run multi-file projects using the Linux/Emacs/Make environment announced in the course organizer. Operational Objectives: Create a project that computes the mean and median of a sequence of integers received via standard input. Deliverables: Files: stats.h, stats.cpp, main.cpp, makefile, log.txt. Note that these files constitute a self-contained project. Assessment Rubric: The following will be used as a guide when assessing the assignment: Please self-evaluate your work as part of the development process. Background Given a finite collection of n numbers: The mean is the sum of the numbers divided by n, and The median is the middle value (in case n is odd) or the average of the two middle values (in case n is even). Note that to find the median of a collection of data, it is convenient to first sort the data, that is, put the data in increasing (or non-decreasing) order. Then the median is just the middle datum in the sorted sequence (or the average of the two middle data, if there are an even number). One of the more intuitive sort algorithms is called Insertion Sort, which operates on an array a[0..n-1] of elements. The idea is to \"insert\" the value of a[i] into the sub-array a[0..i-1] at the largest possible index that results in the expanded sub-array a[0..i] sorted. We insert at the highest possible index in order not to place the value ahead of any previously inserted elements with the same value. The subarray a[0..i-1] is assumed to be sorted at the beginning of each insertion step. The base case consists of a one-element array a[0..0], which is always sorted. Here is a \"pseudocode\" description of the algorithm: The inner loop copies all elements in a[0..i-1] up one index until the correct place for t is found. Then put t in that place. Procedural Requirements: Begin a log file named log.txt. This should be an ascii text file in cop3330/proj1 with the following header: This file should document all work done by date and time, including all testing and test results. Create and work within a separate subdirectory cop3330/proj1. Review the COP 3330 rules found in Introduction/Work Rules. Copy all of the files from LIB/proj1. These should include: In addition you should have the script submit.sh in either your .bin or your.

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Reaction Statistics Background When collecting experimental data from chemical reactions, it’s often useful to generate statistics based on the data. One experimental measure is the reaction rate in moles per second, representing the amount of product formed per unit time. If we have a set of these reaction rates collected in a data file, we can calculate summary statistical information, such as the minimum and maximum values, the arithmetic mean, variance, and standard deviation. Finding the minimum and maximum are straightforward: we scan through all the data, and keep track of the smallest and largest values encountered. The arithmetic mean (or average) is defined as: m = (X1+X2+…+Xn)/n where n is the number of reaction rates, and xi represents one experimental reaction rate. Once you have the arithmetic mean, the variance can be calculated as the mean of the squares of the deviations from the mean: v= ((Xn-m)^2+(X2 – m^2) + …+(Xn-m)^2)/n where n is the number of reaction rates, xi represents one experimental reaction rate, and m is the arithmetic mean of the reaction rates. Once you have the variance, you can calculate the standarddeviation as: s = sqrt(v) Assignment You will develop a C program that reads data from an input text file containing chemical reaction rates (in moles per second), and computes the minimum, maximum, arithmetic mean, variance, and standard deviation for that set of data. Your instructor will provide input text files, which will each contain a series of double values, each on a line of its own within the file. Your program will read one of these input files into an array of doubles (i.e., it will populate the array using the data values from the file). Your program will then calculate statistics using that array of doubles, and will write the results out to a separate output text file. The goals of this assignment are to provide you with experience reading and writing text data files, provide you with experience passing an array into a function, and give you more experience organizing your program into separate C functions. When defining your C functions, you may either: Define the functions before they are used by any other functions, OR Place function prototypes near the top of your code (after all #include directives), and then define the functions in any order. Part 1 – Opening Files and Reading Data Create a new Visual Studio Win32 Console project named reactionstats. Create a new C source file named project4.c within that project. At the top of the source file, #define _CRT_SECURE_NO_WARNINGS, and then include stdio.h, math.h, stdlib.h, stdbool.h, and float.h. Inside your main function, define the following: A one-dimensional array of 600 doubles. They do not need to be initialized to anything at this stage. An integer variable to hold the number of elements in the array, initialized using the approach demonstrated in class, using sizeof. A FILE pointer variable, which will refer to the input data text file..

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Student NameClassDateVBScript IP File Report In the space provided below, copy and paste your IP_FileWrite.vbs program sourcecode. If it doesn’t fit, use the next page for the continuation of your program sourcecode. In the space provided below to copy and paste the remainder of your IP_FileWrite.vbs sourcecode if it did not fit in the first textbox. In the space provided below, copy and paste the RUN of your IP_FileWrite.vbs program. Also include the directory listing of all .csv files: In the space provided below, copy and paste your IP_AppendRead.vbs program sourcecode. If it doesn’t fit, use the next page for the continuation of your program sourcecode. In the space provided below to copy and paste the remainder of your IP_AppendRead.vbs sourcecode if it did not fit in the first textbox. In the space provided below, copy and paste the RUN of your IP_AppendRead.vbs program. 1 COMP230_W6_IP_File_Report.docx Revision Date: 1213 VBScript IP File Lab Objectives In this lab, students will complete the following objectives. · Create a VBScript program using NotePad++. · Write a two-dimensional array of IP addresses to a text file. · Read the IP Addresses text file into a script. · Append new Room/PC/IP address data to the text file. · Use the object Scripting.FileSystemObject. Lab Diagram During your session you will have access to the following lab configuration. Connecting to your lab For this lab, we will only need to connect to Vlab-PC1. · Vlab-PC1 To start simply click on the named Workstation from the device list (located on the left hand side of the screen) and click the Power on from the in tools bar. In some cases the devices may power on automatically. During the boot up process an activity indicator will be displayed in the name tab: · Black - Powered Off · Orange - Working on your request · Green - Ready to access If the remote console is not displayed automatically in the main window (or popup) click the Connect icon located in the tools bar to start your session. If the remote console does not appear please try the following option: · Switch between the HTML 5 and Java client versions in the tools bar. In the event this does not resolve your connectivity problems please visit our Help / Support pages for additional resolution options. Task 1: Create the IP_FileWrite.vbs Program Note: All captures must be text only—DO NOT capture the NotePad++ application window or the command prompt window. Use copy and paste of text only. 1) Open NotePad++ and from the menu, select File/Open. Open the file IP_File_start.vbs in the C:\comp230 directory. If you do not see this file, you can download it and extract it from the eCollege Doc Sharing file IP_File_start.zip. Modify the Programmer Header as needed and Save As the VBScript file as IP_FileWrite.vbs. We are using the array of IP addresses that was used in Lab 4. The line dim ipAddress(5,3) declare 6x4 two-dimensio.

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Question 1 has already been posted to Chegg and I am waiting for the answer on this issue - (When the below program is added to a Dev C++ complier, there are no errors shown; however, when the program is run, the answer appears as zero instead of the correct value. What am I doing wrong?) Question 2 is another using the same program. Please answer this question for this posting. My teach wants us to write a probram that reads data from a text file. Include in this program functions that calculate the mean and the standard deviation. Make sure that the only global varibles are the mean, standard deviation, and the number of data entered. All other varibles must be local to the function. At the top of the program make sure you use functional prototypes instead of writing each function before the main function. My problem is that it seems that the mean, standard deviation and the number of data are already global and there seems to not be any other program functions to make local. What am I not doing correctly or understanding. include//Basically a code file where all input (keyboard) and output (monitor) functions are defined. #include//Basically a code whereas information is able to be read from a file #include//Arrays are a programming tool that provide a mechanism to store a group of values under a single name. The values can be any available data type (e.g., int, double, string, etc.). In C++, the term vectors are used, rather than arrays. #include//declares a set of functions to compute common mathematical operations and transformations using namespace std;//By using namespaces, you can create your own classes and functions with the same names that the standard library provides and place them in differently named namespaces. int main()//The main function is a driver function because it tells the other functions in the program the sequence of actions that need to be executed. {//states that the main program begins here vector v;//declares a vector of integers when the number of vectors is unknown (v). Permits the program to run without knowing the exact number of integers. ifstream inputFile; // Ifstream handles file input (reading from files) ofstream outputFile;//ofstream handles file output (writing to files) outputFile.open (\"output.txt\"); //opens the output file int n;//A generic substitute identification for the integers since the integers listed in the array file are unknown until the integers are read. All the numbers in the array will be read in sequence int total = 0;//Within the array file, the program to calculate the total is to retrieve the integer from the primary position or the zero position int standardDeviation = 0;// within the array file, the program to calculate standard deviation is to retrieve the integer from the primary position or the zero position if (inputFile.is_open()) //checking whether the input file can be opened or not { //states the function to get the data from the array file and be used in the calcula.

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This project is the first projects you will be working on this quarter. There are a number of objectives to this assignment. First, to start gaining experience in developing programs in C++. Second, in case you haven’t already you are going to work in pairs to get the sense of collaborative development of software. Third, because you are allowed to use any references you find online, this assignment will help you get a sense for just how many sources for programming in C++ are available via the web. Project specification: In this project you are going to implement a word search engine using C++. The search engine would help users to count number of occurrence of a word among given set of text files. Input specification: The program takes as an input a set of files, containing of multiple words. Words can appear multiple times in a single file or in different files. The input files should be stored in a dedicated directory (e.g. /cs/class/cs24/project1/input) and loaded in memory upon program execution. Program functionality: Upon execution, the program should load all the words from the input files in the memory. The program should run until the user explicitly specifies “exit”. The following functionality should be supported: 1. Count how many times a user specified word appears in the files. 3. Display the name of input files and corresponding number of occurrences of the specified word. Upon execution of you program, you should specify as input parameter the path to a directory containing the input files. Below you can find the format specification: $./wordsearch Examples for execution format: $./wordsearch /cs/class/cs24/project1/input Enter word: cat If executed as specified above, the program should return the name of files that contain word “cat” and the number of occurrences of the word in each file Implementation requirements: First, you need to implement a class for an abstract data type, in which you are going to store files in memory. This step is very specific, depending on the functionality of the program you are developing. For the current implementation you are required to use linked lists. A basic layout of the data structure you would need to implement is illustrated on the figure below: You need to declare a class Word that would store a word and a pointer to the beginning of a linked list and another class File that would store a file-name and number of times that the word occurred in this file. The process of “loading files in the memory” consists of (i) creating an object of type Word for each new word that occurs in the set of input files, (ii) appending this object to a linked list (e.g. the green linked list from the picture), (iii) creating an object File for each occurrence of the word in a file and (iv) updating the corresponding (blue) linked list with the object File. Once you have the files loaded in such structure, the searching would be as easy as finding the queried word in the “green” linked list and tracing.

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Hey i have attached the required file for my assignment. and additionally i have also mentioned the points of assignments below. this one is based on this concept. Lab 4 (Collection Framework, Exception, IO Handling, Generic method and GUI Programming) NOTE: You should properly format your source code files for better readability and write appropriate comments in the code. Exercise 1 [10 points]: Write a program that asks a user for a file name and prints the number of characters, words (separated by whitespace), and lines in that file. Then, it prints the frequency of each word (case insensitive) containing in the file (Test1.txt); Your program should handle exceptions related to file opening and reading from the file. This is a test this Hi there hi hi hi Output at the console: Number of characters: 35 Number of words: 10 Number of lines: 2 Data written to the file (Test1.txt): this 2 is 1 a 1 test 1 hi 4 there 1 Hint: you may use a HashMap to store and count the frequency of the words in the file. Exercise 2 [20 points]: Your task is to write a program that uses a textfile containing any number of lines of double values as input. Each line in the file is supposed to have no more than 15 values on it. If the file exists and each line in the file does in fact contain 15 or fewer double values, then the program processes and reports on each line in turn by displaying its line number, the number of values on that line, and the range of values on the line. But, as you know, things are not always as they seem, or as they are supposed to be. For example, the file your program is looking for may not be there, there may be no double values at all on some lines, some lines may contain more values than the allowed maximum of 15, and some lines may contain "values" that aren't even doubles (i.e., badly formatted "invalid" double values). The program must recognize and respond appropriately to each of these problems. Note: You must implement exception handling. Not only am I requiring it, but Java itself will also require it since you will have to use Java resources that force you to deal with the IOException. In addition to this exception, you are also required to handle the ArrayIndexOutOfBounds and the NumberFormatException at appropriate points in your program. This program reads in, from the command line, the name of a textfile containing any number of lines of doubles and then processes each line in turn. Processing a line means computing and then reporting, for that line, its line number, along with the range of values on the line. The program can recognize a number of problems that may occur when trying to process such a file. First, the file itself may not be present. If so, the following message is displayed (the first line comes from the system, the second from the program itself): filename.ext (The system cannot find the file specified) Program will now terminate. ...

Hey i have attached the required file for my assignment.and addi

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4. According to Cynthia Garcia Coll and her colleagues, children's development is viewed: Within the larger context social stratification, including racism, prejudice, oppression, and seisregation. As a happy period As unfolding of psychosocial, physical, and cognitive abilities. All developmental phases and individual tralts become meaningful only in the context of the child's social life. Chirdmeos systern Sign-in again Youn Goople Acount(.

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4. A local restaurant is concerned about their ability to provide quality service as they continue to grow and attract more customers. They have collected data from Friday and Saturday nights, their busiest time of the week. During these time periods about 75 customers arrive per hour for service. Given the number of tables and chairs, and the typical time it takes to serve a customer, they figure they can serve on average about 100 customers per hour. During these nights, are they in the zone of service, the critical zone, or the zone of non-service? 5. The restaurant in the prior problem anticipates that in one year, their demand will double as long as they can provide good service to their customers. How much will they have to increase their service capacity to in order to stay out of the critical zone? (round the answers to the nearest integer).

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