51. How many types of representation are in the string?
52. What will be the output of the following C++ code?
#include <iostream>
#include <cstring>
using namespace std;
int main ()
{
char str1[10] = "Hello";
char str2[10] = "World";
char str3[10];
int len ;
strcpy( str3, str1);
strcat( str1, str2);
len = strlen(str1);
cout << len << endl;
return 0;
}
#include <iostream>
#include <cstring>
using namespace std;
int main ()
{
char str1[10] = "Hello";
char str2[10] = "World";
char str3[10];
int len ;
strcpy( str3, str1);
strcat( str1, str2);
len = strlen(str1);
cout << len << endl;
return 0;
}53. What will be the output of the following C++ code?
#include <iostream>
#include <string>
using namespace std;
class Box{
int capacity;
public:
Box(){}
Box(double capacity){
this->capacity = capacity;
}
bool operator<(Box b){
return b.capacity < this->capacity? true : false;
}
};
int main(int argc, char const *argv[])
{
Box b1(10);
Box b2 = Box(14);
if(b1 < b2){
cout<<"B1's capacity is small";
}
else{
cout<<"B2's capacity is small";
}
return 0;
}
#include <iostream>
#include <string>
using namespace std;
class Box{
int capacity;
public:
Box(){}
Box(double capacity){
this->capacity = capacity;
}
bool operator<(Box b){
return b.capacity < this->capacity? true : false;
}
};
int main(int argc, char const *argv[])
{
Box b1(10);
Box b2 = Box(14);
if(b1 < b2){
cout<<"B1's capacity is small";
}
else{
cout<<"B2's capacity is small";
}
return 0;
}54. Which header file is used to declare the complex number?
55. Pick out the correct statement.
56. Pick the other name of operator function.
57. Which header file is used to include the string object functions in C++?
58. Constructors are used to . . . . . . . .
59. What will be the output of the following C++ code?
#include <iostream>
#include <string>
using namespace std;
class complex
{
int i;
int j;
public:
complex(){}
complex(int a, int b)
{
i = a;
j = b;
}
complex operator+(complex c)
{
complex temp;
temp.i = this->i + c.i;
temp.j = this->j + c.j;
return temp;
}
void operator+(complex c)
{
complex temp;
temp.i = this->i + c.i;
temp.j = this->j + c.j;
temp.show_poss();
}
void show(){
cout<<"Complex Number: "<<i<<" + i"<<j<<endl;
}
void show_poss(){
cout<<"Your result after addition will be: "<<i<<" + i"<<j<<endl;
}
};
int main(int argc, char const *argv[])
{
complex c1(1,2);
complex c2(3,4);
c1 + c2;
return 0;
}
#include <iostream>
#include <string>
using namespace std;
class complex
{
int i;
int j;
public:
complex(){}
complex(int a, int b)
{
i = a;
j = b;
}
complex operator+(complex c)
{
complex temp;
temp.i = this->i + c.i;
temp.j = this->j + c.j;
return temp;
}
void operator+(complex c)
{
complex temp;
temp.i = this->i + c.i;
temp.j = this->j + c.j;
temp.show_poss();
}
void show(){
cout<<"Complex Number: "<<i<<" + i"<<j<<endl;
}
void show_poss(){
cout<<"Your result after addition will be: "<<i<<" + i"<<j<<endl;
}
};
int main(int argc, char const *argv[])
{
complex c1(1,2);
complex c2(3,4);
c1 + c2;
return 0;
}60. What is the header file for the string class?
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