Answer & Solution
Answer: Option B
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52. Header file used for exception handling in C++?
53. What will be the output of the following C++ code?
#include <iostream>
#include <string>
#include <cstdlib>
using namespace std;
class A
{
int a;
public:
A(){}
};
class B: public A
{
int b;
public:
B(){}
};
void func()
{
B b;
throw b;
}
int main()
{
try{
func();
}
catch(B b){
cout<<"Caught B Class\n";
}
catch(A a){
cout<<"Caught A Class\n";
}
}
#include <iostream>
#include <string>
#include <cstdlib>
using namespace std;
class A
{
int a;
public:
A(){}
};
class B: public A
{
int b;
public:
B(){}
};
void func()
{
B b;
throw b;
}
int main()
{
try{
func();
}
catch(B b){
cout<<"Caught B Class\n";
}
catch(A a){
cout<<"Caught A Class\n";
}
}54. Where should we place catch block of the derived class in a try-catch block?
55. What will be the output of the following C++ code?
#include <iostream>
#include <string>
#include <cstdlib>
using namespace std;
class A
{
int a;
public:
A(){}
};
class B: public A
{
int b;
public:
B(){}
};
void func1()
{
B b;
throw b;
}
void func2()
{
A a;
throw a;
}
int main()
{
try{
func1();
}
catch(...){
cout<<"Caught All types of exceptions\n";
}
try{
func2();
}
catch(B b){
cout<<"Caught All types of exceptions\n";
}
}
#include <iostream>
#include <string>
#include <cstdlib>
using namespace std;
class A
{
int a;
public:
A(){}
};
class B: public A
{
int b;
public:
B(){}
};
void func1()
{
B b;
throw b;
}
void func2()
{
A a;
throw a;
}
int main()
{
try{
func1();
}
catch(...){
cout<<"Caught All types of exceptions\n";
}
try{
func2();
}
catch(B b){
cout<<"Caught All types of exceptions\n";
}
}56. An uncaught handler returns to . . . . . . . .
57. What is an exception in C++ program?
58. Which part of the try-catch block is always fully executed?
59. By default, what a program does when it detects an exception?
60. 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;
}
}
#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;
}
}