Problem Solving with C++ (10th Edition)
10th Edition
ISBN: 9780134521176
Author: SAVITCH
Publisher: PEARSON
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Chapter 16.1, Problem 4STE
What happens when a throw statement is executed? This is a general question. Tell what happens in general, not simply what happens in the code in Self-Test Question 1 or some other sample code.
1. What output is produced by the following code?
| int waitTime = 46; try { cout << "Try block entered.\n"; if (waitTime > 30) throw waitTime; cout << "Leaving try block.\n"; } catch(int thrownValue) { cout << "Exception thrown with\n" << "waitTime equal to " << thrownValue << endl; } cout << "After catch block." << endl; |
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For this lab, you will modify your Lab 7 to make several improvements to the getter/settermethods. Instead of having them return True/False, modify each one to throw an exception ifinvalid data is passed.Modify these methods in the following way:• add_hours()o If the number of hours being added is less than 0, throw an exception• add_sales()o If the amount of sales being added is less than 0, throw an exception• set_employee_number()o The employee number must be an integer. If the given input is not an integer,throw an exception• set_office_number()o If the office number given is less than 100 or greater than 500, throw anexception.• set_name()o If the given name is empty, throw an exceptiono Any of the following characters should be removed from the name: ‘_’, ‘.’, ‘-‘ (Underscore, period, and dash)• set_birthdate()o If the given value for the month is less than 1 or greater than 12, throw anexceptiono If the given value for the…
I have a question about the following code, why do they have different output, please explain to me.
class Test
{
private:
int x;
int y;
public:
Test(int x = 0, int y = 0) { this->x = x; this->y = y; }
Test &setX(int a) { x = a; return *this; }
Test &setY(int b) { y = b; return *this; }
void print() { cout << "x = " << x << " y = " << y << endl; }
};
int main()
{
Test obj1(5, 5);
// Chained function calls. All calls modify the same object
// as the same object is returned by reference
obj1.setX(10).setY(20);
obj1.print();
return 0;
}
#include<iostream>
using namespace std;
class Test
{
private:
int x;
int y;
public:
Test (int x = 0, int y = 0) { this->x = x; this->y = y; }
Test setX(int a) { x = a; return *this; }
Test setY(int b) { y = b; return *this; }
void print() { cout << "x = " << x << " y = " << y << endl; }
};
int main()
{
Test obj1;…
What is the difference between using @Test(expected = TypeOfException) and using try/catch when testing if a method or constructor properly returns an exception?
A. They do the same thing.
B. @Test(expected = ...) is the proper way to unit test in java, and try/catch should only be used when unit testing in Python.
C. @Test(expected = ...) will give a passing test as soon as one exception of the proper type is thrown and then stop the test, but using try/catch will allow you to test many examples in the same test and will only stop after running all examples or reaching a fail() or an assert statement that fails.
D. We should never use try/catch when unit testing, otherwise we will catch the exception and then won't know if it is actually thrown.
Chapter 16 Solutions
Problem Solving with C++ (10th Edition)
Ch. 16.1 - Prob. 1STECh. 16.1 - What would be the output produced by the code in...Ch. 16.1 - Prob. 3STECh. 16.1 - What happens when a throw statement is executed?...Ch. 16.1 - In the code given in Self-Test Exercise 1, what is...Ch. 16.1 - Prob. 6STECh. 16.1 - Prob. 7STECh. 16.1 - What is the output produced by the following...Ch. 16.1 - What is the output produced by the program in...Ch. 16.2 - Prob. 10STE
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