C++ Zybook Lab 16.5 LAB: Exception handling to detect input string vs. int

The given program reads a list of single-word first names and ages (ending with -1), and outputs that list with the age incremented. The program fails and throws an exception if the second input on a line is a string rather than an int. At FIXME in the code, add a try/catch statement to catch ios_base::failure, and output 0 for the age.

Ex: If the input is:

Lee 18
Lua 21
Mary Beth 19
Stu 33
-1

then the output is:

Lee 19
Lua 22
Mary 0
Stu 34

Here's the code:

#include <string>
#include <iostream>

using namespace std;

int main(int argc, char* argv[]) {
string inputName;
int age;
// Set exception mask for cin stream
cin.exceptions(ios::failbit);

cin >> inputName;
while(inputName != "-1") {
// FIXME: The following line will throw an ios_base::failure.
// Insert a try/catch statement to catch the exception.
// Clear cin's failbit to put cin in a useable state.
try{
//Reading age
cin >> age;
//Printing Name and age incremented by 1 if correct values are entered
cout << inputName << " " << (age + 1) << endl;
}
catch(ios_base::failure){
//Clear cin
cin.clear();
}
  
cin >> age;
cout << inputName << " " << (age + 1) << endl;

cin >> inputName;
}

return 0;
}

There are at least five (probably more) places in the attached C# program code that could be optimized. Find at least five things in the Program.cs file that can be changed to make the program as efficient as possible.

1. List five problems you found with the code (Put your list either in comments within the code or in a separate Word or text document), and then optimize the code in the attached code below to make it as efficient as possible. The program output must not be affected by your changes. To the user it should still do everything it did before your changes provided the user enters valid data.

using System;

namespace COMS_340_L4A
{
class Program
{
static void Main(string[] args)
{
Console.Write("How many doughnuts do you need for the first convention? ");
int.TryParse(Console.ReadLine(), out int total1);

Console.Write("How many doughnuts do you need for the second convention? ");
int.TryParse(Console.ReadLine(), out int total2);

int totalDonuts = Calculator.CalculateSum(new int[] { total1, total2 });

Console.WriteLine($"{ totalDonuts } doughnuts is { Calculator.ConvertToDozen(totalDonuts)} dozen.");
Console.WriteLine("Press Enter to quit...");
Console.ReadLine();
}
}

static class Calculator
{
static int DOZEN = 12;

public static int CalculateSum(int[] args)
{
int return_value = 0;
foreach (int i in args)
{
return_value += i;
}
return return_value;
}

public static int ConvertToDozen(int total)
{
int dozen = DOZEN;
return total / dozen;
}
}
}

Web Server Infrastructure

Web application infrastructure includes sub-components and external applications that provide efficiency, scalability, reliability, robustness, and most critically, security.

• The same advancements made in web applications that provide users these conveniences are the same components that criminal hackers use to exploit them. Prudent security administrators need to be aware of how to harden such systems.

Use the graphic below to answer the following questions:

1. What stage is the most inner part of the web architecture where data such as, customer names, addresses, account numbers, and credit card info, is stored?

2. Which stage includes online forms, word processors, shopping carts, video and photo editing, spreadsheets, file scanning, file conversion, and email programs such as G mail, Yahoo and AOL.

3. What stage is the component that stores files (e.g. HTML documents, images, CSS stylesheets, and JavaScript files) that's connected to the Internet and provides support for physical data interactions between other devices connected to the web?

4. What stage is where the end user interacts with the World Wide Web through the use of a web browser?
5. Which stage is designed to prevent unauthorized access to and from protected web server resources?

1. Acting Secretary Modly violated one of the accepted principles of good leadership, “praise in public and criticize in private” (ideally one-on-one). What are a few likely reasons that some leaders succumb to the impulse to be harsh and criticize subordinates in public?

2. Before his apology, Acting Secretary Modly issued a statement earlier in the day about his remarks aboard the ship, saying he spoke from the heart and that his words were meant for the crew. “I stand by every word I said, even, regrettably any profanity that may have been used for emphasis,” he said. “Anyone who has served on a Navy ship would understand.” In other words, it’s OK to use profanity in the Navy Why do leaders often use the “acted-of-normalcy” defense (i.e., this is how it’s done around here) to justify their bad actions?

3. Acting Secretary Modly told the crew of the USS Roosevelt not to speak to the media, which he said holds a political agenda. Mr. Modly himself has conducted interviews with Reuters and the Washington Post and published the letter to the editor in the New York Times. Why do some leaders feel that they can operate under different rules than those whom they lead? What steps can a leader take to protect him/herself from these types of tendencies?

IN JAVA

12.11 PRACTICE: Branches*: Listing names

A university has a web page that displays the instructors for a course, using the following algorithm: If only one instructor exists, the instructor's first initial and last name are listed. If two instructors exist, only their last names are listed, separated by /. If three exist, only the first two are listed, with "/ …" following the second. If none exist, print "TBD". Given six words representing three first and last names (each name a single word; latter names may be "none none"), output one line of text listing the instructors' names using the algorithm. If the input is "Ann Jones none none none none", the output is "A. Jones". If the input is "Ann Jones Mike Smith Lee Nguyen" then the output is "Jones / Smith / …".

Hints:

• Use an if-else statement with four branches. The first detects the situation of no instructors. The second one instructor. Etc.

• Detect whether an instructor exists by checking if the first name is "none".

CODE GIVEN:

import java.util.Scanner;

public class main {
public static void main(String[] args) {
Scanner scnr = new Scanner(System.in);
String firstName1, lastName1;
String firstName2, lastName2;
String firstName3, lastName3;
  
firstName1 = scnr.next();
lastName1 = scnr.next();
firstName2= scnr.next();   
lastName2= scnr.next();
firstName3= scnr.next();
lastName3= scnr.next();
  
/* Type your code here. */
  
}
}

Please select an organization of your choice from the one of the following industries:

A. Automotive B. High Tech C. Hospitality and Tourism

to develop a Benchmarking report where you need to identify:

1. The rationale for and the objectives of the benchmarking. Why is this benchmarking exercise important for the business? What type of benchmarking is appropriate (competitive, internal, functional, generic). Please remember:

1. Internal benchmarking is a comparison of a business process to a similar process inside the organization.
2. Competitive benchmarking is a direct competitor-to-competitor comparison of a product, service, process, or method.
3. Functional benchmarking is a comparison to similar or identical practices within the same or similar functions outside the immediate industry.
4. Generic benchmarking broadly conceptualizes unrelated business processes or functions that can be practiced in the same or similar ways regardless of the industry.

2. The elements that you want to compare (for example: business units, departments, activties, employee performance etc.). You can benchmark product performance (sales, revenues, customer satisfaction, manufacturing cyscle time) , employee perfomance ( Productivity levels, untis produced per week, internal promotions rate, retention level, absenteeism level), customer service (digital customer service, customer satisfaction score, customer problem solving score).

3. The performance indicators (metrics) , the targets and all related information.

In the conclusion of the report please discuss potential areas for improvement that might be identified through this particular benchmarking exercise.

Word Count: 1,200 words

We want to design and develop a text statistical analyzer. This analyzer should consider an input text as a finite sequence of characters, including letters (‘a’, .., ‘z’, ‘A’, ..., ‘Z’), digits (0,…, 9), special characters (space and new line), and punctuation characters (‘.’, ‘,’, ‘;’). The input text must end with ‘#’. A word is defined as a sequence of alphanumeric characters (letters and numbers, 0 to 9) delimited by two separators. A separator is any non-alphanumeric character. Use your favorite object-oriented programming language to write a program that accepts a text as input and gives as output the following results: i. The total number of alphanumeric characters (i.e., letters and digits). ii. The total number of letters and their frequency with respect to the total number of alphanumeric characters. 2 iii. The total number of digits and their frequency with respect to the total number of alphanumeric characters. iv. The total number of words. v. The total number of words starting with “ted” and their frequency with respect to the total number of words. vi. The total number of words ending with “ted” and their frequency with respect to the total number of words. vii. The total number of words having “ted” in the middle and their frequency with respect to the total number of words. viii. The total number of sequences of “ted” and their frequency with respect to the total number of sequences of three alphanumeric characters. The implementation of this text statistical analyzer should be as structured as possible.

Write a code for the above problem either in c/c++.

1.Generally, the main purpose of a company's public relations effort is to

Multiple Choice

• get positive coverage by the press.

• educate customers about their product.

• establish itself as a "thought leader" in the field.

• encourage word-of-mouth pass-along.

• solve customer problems

2. Which of the following statements is true about Facebook?

Multiple Choice

• It is especially effective among younger adults than older adults.

• It provides a free online photo and video sharing service geared to mobile phones.

• It is growing faster than all other social media platforms.

• It allows registered users to send out short messages called tweets.

• It uses an algorithm to decide what content is placed in the user's newsfeed.

3.Solar City wants to build awareness of its residential roof-top solar cells. It needs to explain to consumers how their product is installed, how it works, and how customers pay for it. Which of the following media types should it select to achieve these goals?

Multiple Choice

• educational web pages

• branded apps

• Instagram page

• e-mail newsletters

• reminder advertising

4. When a company is able to get its customers to quickly spread a message far and wide, it is referred to as

Multiple Choice

• viral promotion.

• search engine optimization.

• a high bounce rate

• a branded service.

• owned media.

Write the following questions as queries in Relational Algebra. Use only the operators discussed in class (select, project, Cartesian product, join, union, intersection, set difference and renaming —in particular, no outer joins or aggregations). Type your answers. If you can’t find Greek letters in your word processor, you can simply write out the operator, all uppercase (i.e. ’SELECT’). Please use renaming consistently, as indicated in the handout. Before starting, make sure you understand the schema of the database. If you are in doubt about it, please ask the instructor.

Assume a database with schema:

ACTOR(name,age,address,nationality)

MOVIE(title,year,genre,budget,director-name,studio)

APPEARS(name,title,salary)

Write the following questions in Relational Algebra:

1. List the titles and budgets of movies where actor Keanu Reeves appeared in 1999.

2. List the names and ages of actors who have appeared in a comedy produced by Studio ’MGM’.

3. List the names of directors who have directed a drama or a comedy.

4. List the names of directors who have directed a drama and a comedy.

5. List pairs of actors who have appeared together in a movie (note: the schema of your answer should be (name1,name2), where both name1 and name2 are names of actors.

Write an application with five classes Vehicle, Car, Bus, Truck, and Tester class with main method in it.

The following characteristics should be used: make, weight, height, length, maxSpeed, numberDoors, maxPassenges, isConvertable, numberSeats, maxWeightLoad, and numberAxels.

Characteristics that are applicable to all vehicles should be instance variables in the Vehicle class. The others should be in the class(s) where they belong.

Class vehicle should have constructor that initializes all its data. Classes Car, Bus, and Truck will have constructors which will reuse their parents constructor and provide additional code for initializing their specific data.

Class Vehicle should have toString method that returns string representtion of all vehicle data. Classes Car, Bus, and Truck will override inherited toString method from class vehicle in order to provide appropriate string representation of all data for their classes which includes inherited data from Vehicle class and their own data.

Class Tester will instantiate 1-2 objects from those four classes (at least five total) and it will display the information about those objects by invoking their toString methods.

Submit one word document with code for all five classes, picture of program run from blueJ, and picture of UML diagram.