| Question | Answer |
| Returns true if character expression is a digit 0 through 9 otherwise false | isdigit() |
| Compares the C string str1 to the C string str2 | strcmp() |
| Checks if a character is printable | isprint() |
| Converts lowercase letter to uppercase | toupper() |
| Check if a character is an uppercase letter | isupper() |
| What is the identifier given to string class to declare string objects? | String |
| What is the output of the following?
#include <iostream>
#include <string>
using namespace std;
int main () {
string str1 = "Hello";
string str2 = "World";
if (str1==str2)
cout << "Equal";
else
co | NOT Equal |
| What is the output of the given program?
#include <iostream>
#include <string>
using namespace std;
int main ()
{
string str1 = "This is a test";
cout << str1.empty();
return 0;
} | 0 |
| Which operator is suitable for the concatenation function of a string class? | + operator |
| What is the output of the following program?
#include <iostream>
#include <string>
using namespace std;
int main () {
string str3(5, '#');
cout << str3;
return 0;
} | ##### |
| How many members are in this structure?
struct Person
{
char name[50];
int age;
double salary;
}; | 3 |
| It is a collection of variables of different data types under a single name | Structure |
| A keyword used to define a structure? | struct |
| Can you place an array inside a structure? | Yes |
| It is a block of code to perform a specific task | Function |
| What is the output of the given program?
#include <cctype>
#include <iostream>
#include <cstring>
using namespace std;
int main()
{
char str[] = "c++ programming";
for (int i=0; i<strlen(str); i++)
putchar(touppe | C++ PROGRAMMING |
| Which of the following is correct? | char str[80]; |
| Which of the following compares two string values? | strcmp() |
| What is the output of the given program?
#include <iostream>
#include <string>
using namespace std;
int main ()
{
string str1 = "Hello ";
string str2 = "World";
cout << "";
return 0;
} | Blank output |
| It converts a numerical value to string? | to_string |
| What is the output of the given program?
#include <iostream>
#include <string>
#include <cmath>
using namespace std;
int main ()
{
string s ="79";
int n = stoi(s);
cout << n;
return 0;
} | 79 |
| Which of the following operator can be used also in strings? | - |
| The data elements in the structure are also known as what? | members |
| What operator is used to access the members of a structure? | dot operator |
| What is the output of the program?
int main()
{
structure hotel
{ int items;
char name[10];
}a;
strcpy(a.name, "Neji");
a.items=10;
cout << a.name;
return 0;
} | error |
| What does struct Point arr[5]; do? | All of the mentioned |
| The empty parentheses in a function means that it _______________ | doesn't have any parameters |
| What is the error in the following program?
#include <cstring>
#include <iostream>
using namespace std;
int main ()
{
char key[] = "apple";
char buffer[80];
do {
cout << "Guess my favorite fruit? ";
cin.getlin | Semicolon is missing |
| It is a sequence of characters | String |
| What is the output of the program?
#include <cstring>
#include <iostream>
int main ()
{
char str[80];
strcpy (str,"these ");
strcat (str,"strings ");
strcat (str,"are ");
strcat (str,"concatenated.");
puts (str); | these strings are concatenated. |
| What is the output of the given program?
#include <iostream>
#include <ctype.h>
int main ()
{
int i=0;
char str[]="first line ";
return 0;
} | blank screen |
| Compares up to num characters of the C string str1 to those of the C string str2 | strncmp() |
| What is the output of the given program?
#include <iostream>
#include <string>
using namespace std;
int main ()
{
string str1 = "This is a test";
string str2 = "test";
cout << "Word is found at index " << str1.find(str2 | Word is found at index 10 |
| If two strings are identical, then the strcmp() function returns: | 0 |
| The append operator is denoted by: | += |
| Which of the following function converts a numerical value to string? | to_string |
| If you have a structure named Person, how can you create a structure variable named s1 and s2? | Person s1, s2; |
| Which of the following statements assigns a value to the hourlyWage member of the employee? | employee.hourlyWage = 75.00; |
| Complete the code below:
#include <iostream>
#include <string>
using namespace std;
struct Person
{
string name;
int age;
double salary;
};
int main()
{
Person s1;
s1.name = "Ronel";
s | s1.salary |
| You need to create an array from a structure named Students, which is correct? | Students stud[3]; |
| Which of the following statements assigns a value to the age member of students? | students.age = 22; |
| It is simply a function that doesn't need to return anything | Void Function |
| The function body is written inside ___________ | {} |
| Complete the following:
struct Person
{
string name = "Ronel Ramos";
int age = 34;
________ salary = 70514.55;
}; | double |
