C++ Exception Handling Test – 1

1. What is an error in C++?

2. What is Re-throwing an exception means in C++?

3. What will be the output of the following C++ code?

#include <iostream>
#include <string>
#include <cstdlib>
using namespace std;
void func(int a, int b)
{
	if(b < 1){
		throw b;
	}
	else{
		cout<<"Product of "<<a<<" and  "<<b<<" is: "<<a*b<<endl;
	}
}

int main()
{
	try
        {
		try
                {			
		    func(5,-1);
		}
		catch(int b)
                {
			if(b==0)
				throw "value of b is zero\n";
			else
				throw "value of b is less than zero\n";
		}
	}
	catch(const char* e)
        {
		cout<<e;
	}
		
}

4. Why do we need to handle exceptions?

5. What will be the output of the following C++ code?

#include <iostream>
#include <string>
#include <cstdlib>
using namespace std;

void func(int a, int b)
{

	if(b == 0){
		throw "This value of b will make the product zero. " 
                      "So please provide positive values.\n";
	}
	else{
		cout<<"Product of "<<a<<" and  "<<b<<" is: "<<a*b<<endl;
	}
}

int main()
{
	try{
		func(5,0);
	}
	catch(const char* e){
		cout<<e;
	}
}

6. What will be the output of the following C++ code?

#include <iostream>
#include <string>
#include <cstdlib>
using namespace std;
void func(int a, int b)
{
	if(b == 0){
		throw "This value of b will make the product zero. " 
                       "So please provide positive values.\n";
	}
	else{
		cout<<"Product of "<<a<<" and  "<<b<<" is: "<<a*b<<endl;
	}
}

int main()
{
	try{
		func(5,0);
	}
	catch(char* e){
		cout<<e;
	}
}

7. Which keyword is used to throw an exception?

8. By default, what a program does when it detects an exception?

9. Which part of the try-catch block is always fully executed?

10. What is the difference between error and exception?

11. What are the different types of exceptions?

12. What is the correct syntax of the try-catch block?

13. What is an exception in C++ program?

14. Which of the following is an exception in C++?

15. How Exception handling is implemented in the C++ program?