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Working with Strings in C++

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Questions and Answers

How is a C-String defined in C language?

As a two-dimensional array of characters
As a list of characters separated by commas
As a one-dimensional array of characters terminated by a null character (correct)
As an array of integers with a null terminator

What occupies the 7th memory location in a C-String?

A space character
A numeric character
The null character '\0' (correct)
The last character of the string

How can a C-String variable be initialized in C language?

By using the 'initialize' keyword followed by the string
By placing each character in single quotation marks within curly braces after the variable
By concatenating multiple strings together
By using double quotation marks with an equal sign (correct)

Why is the second way of initializing a C-String variable less preferred?

It involves storing each character individually (C) Signup and view all the answers

What happens when using '>>' operator with cin to input a C-String with embedded blanks?

Characters after the blank space are ignored (B) Signup and view all the answers

How can you overcome the issue of embedded blanks when inputting a C-String?

By using cin.get() function for C-String input (C) Signup and view all the answers

What is the main difference between character data type and string data type in C++?

Character data type can only store a single character while string data type can store a sequence of characters. (C) Signup and view all the answers

Why are C-Strings also known as C-Strings?

Because they were only the kind of strings available in C language and early versions of C++ language. (A) Signup and view all the answers

Why is a null character ' ull' appended to the end of a C-String?

To indicate the end of the string. (B) Signup and view all the answers

How many bytes are needed to store the single-character string 'a'?

2 bytes (A) Signup and view all the answers

How many elements does a C-String variable holding 7 characters require?

8 elements (C) Signup and view all the answers

Why does a string with n characters require an n+1 element array to store it?

To accommodate the null character at the end of the string. (A) Signup and view all the answers