String Data Structure Quiz for Beginners (original) (raw)

string a = "10";
string b = "20";
string c = a + b;

Guess the output:

What the below program will Print?

C++ `

#// C program to find the length of string #include <bits/stdc++.h> using namespace std; int main() {

string str = "Hello Geeks";
int i;
for (i = 0; str[i] != '\0'; ++i)
    ;
cout << i;

return 0;

}

`

Which of these methods of class String is used to obtain the length of the String object?

What is the output of the below code?

C++ `

#include using namespace std;

int main() {

string str = "GeeksForGeeks";
cout << str.substr(2).substr(4);
return 0;

}

`

Which of the following is a palindromic string?

What is the time complexity to reverse a string?

Which of these methods from the String class is used to extract a single character from an object of String?

How does strcmp() function work to compare two strings?

• It compares characters based on their index.
• It compares strings based on the index.
• It compares characters of the string based on their ASCII values.

Which of the following statement is a binary string?

What is the output of the following code?

C++ `

#include using namespace std;

int main() {

cout << "GFG!"[0] <<" "<<"GFG!"[3] ;
return 0;

}

`

There are 20 questions to complete.

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