Exercise 2 (30/40): Write a program that reads in a set of coin descriptions from a file. The input file has the format coinNamel value is coin Valuel coinName2 value is coinValue2 Add a method to your program that receives file content and writes back to another file statistics about the coins. Sample input file Riyal value is 25 Baisa value is 6.0 BHR value is baisa value is 5.30 Riyal value is 23.5 Sample output file Riyal = 24.25 Baisa =5.65 BHR = 9.5 In the solution 9.5 1. use the coin class provided on Moodle. 3. Handle any two exceptions to make sure the input file holds the correct transactions format (FileNotFoundException is not one of them) Information: Illegalargumentexception: The IllegalArgumentException is an unchecked exception in Java that is thrown to indicate an illegal or unsuitable argument passed to a method. It is one of the most common exceptions that occur in Java. Input MismatchException: The InputMismatchException generally occurs when working with Java programs that prompt users for input using the Scanner class. The exception can occur when the input is invalid for the expected type. The input either does not match the pattern for the expected type, or is out of range

Exercise 2 (30/40): Write a program that reads in a set of coin descriptions from a file. The input file has the format coinNamel value is coin Valuel coinName2 value is coinValue2 Add a method to your program that receives file content and writes back to another file statistics about the coins. Sample input file Riyal value is 25 Baisa value is 6.0 BHR value is baisa value is 5.30 Riyal value is 23.5 Sample output file Riyal = 24.25 Baisa =5.65 BHR = 9.5 In the solution 9.5 1. use the coin class provided on Moodle. 3. Handle any two exceptions to make sure the input file holds the correct transactions format (FileNotFoundException is not one of them) Information: Illegalargumentexception: The IllegalArgumentException is an unchecked exception in Java that is thrown to indicate an illegal or unsuitable argument passed to a method. It is one of the most common exceptions that occur in Java. Input MismatchException: The InputMismatchException generally occurs when working with Java programs that prompt users for input using the Scanner class. The exception can occur when the input is invalid for the expected type. The input either does not match the pattern for the expected type, or is out of range

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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DescriptionWrite a program to compute average grades for a course. The course records are in a single file and are organized according to the following format: each line contains a student's first name, then one space, then the student's last name, then one space, then some number of quiz scores that, if they exist, are separated by one space. Each student will have zero to ten scores, and each score is an integer not greater than 100. Your program will read data from this file and write its output to a second file. The date in the output file will be nearly the same as the data in the input file except that you will print the names as last-name, first-name; each quiz score, and there will be one additional number at the end of each line:the average of the student's ten quiz scores.Both files are parameters. You can access the name of the input file with argv[1]. and the name of the output file with argv[2].The output file must be formatted as described below: 1. First and last names…
Java Your program must read a file called personin.txt. Each line of the file will be a person's name, the time they arrived at the professor's office, and the amount of time they want to meet with the professor. These entries will be sorted by the time the person arrived. Your program must then print out a schedule for the day, printing each person's arrival, and printing when each person goes in to meet with the professor. You need to print the events in order of the time they happen. In other words, your output will be sorted by the arrival times and the times the person goes into the professor's office. In your output you need to print out a schedule. In the schedule, new students go to the end of the line. Whenever the professor is free, the professor will either meet with the first person in line, or meet with the first person in line if nobody is waiting. Assume no two people arrive at the same time. You should solve this problem using a stack and a queue. You can only…
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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!
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Use C++ Language Problem 2 (Save and Get Info): Write a program that asks for the user's name, phone number, and address. The program then saves all information in a data file (each information in one line) named list.txt. Finally, the program reads the information from the file and displays it on the screen in the following format:Name: User's Name Phone Number: User's Phone Number Address: User's Street Address User's City, State, and Zip Code
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Given a text file containing the availability of food items, write a program that reads the information from the text file and outputs the available food items. The program first reads the name of the text file from the user. The program then reads the text file, stores the information into four separate lists, and outputs the available food items in the following format: name (category) - description Assume the text file contains the category, name, description, and availability of at least one food item, separated by a tab character ('\t'). Ex: If the input of the program is: food.txt and the contents of food.txt are: Classic ham sandwich Available sandwich Chicken salad sandwich Not available Classic cheeseburger Cheeseburger Not available Salads Water 16oz bottled water Available Caesar salad Chunks of romaine heart lettuce dressed with lemon juice Available Salads Asian salad Mixed greens with ginger dressing, sprinkled with sesame Not available Beverages Beverages Mexican food…