Learn and Master C Programming - Character Arrays versus Strings

The video tutorial explains the differences between character arrays and strings in C programming. It covers how to declare and initialize character arrays, the concept of null-terminated strings, and how strings are treated as a superset of character arrays. The tutorial includes a practical coding example to demonstrate these concepts and highlights the importance of null terminators in strings. It also discusses the limitations of modifying character arrays and provides insights into handling strings in C.

What is the primary difference between a character array and a string in C?

• Strings are a type of character array with a null terminator.

• Character arrays are always null-terminated.

• Character arrays can only store numbers.

• Strings cannot be used in C.

How is a string stored in memory in C?

• As a sequence of characters without any special terminator.

• As a single integer value.

• As a sequence of characters with a null terminator at the end.

• As a sequence of integers.

What is the significance of the null terminator in a C string?

• It makes the string immutable.

• It allows the string to store numbers.

• It is used to initialize the string.

• It marks the end of the string in memory.

What happens if you try to print a character array using %s in C?

• It prints only the first character.

• It causes a syntax error.

• It prints garbage values until a null terminator is found.

• It prints the array correctly.

In the coding example, what is the result of trying to print a character array as a string?

• The program prints an error message.

• The program prints only the first character.

• The program prints garbage values and may crash.

• The program prints the array correctly.

Why can't you assign a new string to a character array using the '=' operator?

• Because arrays must be modified one element at a time.

• Because strings cannot be stored in arrays.

• Because the '=' operator is not defined for arrays.

• Because character arrays are immutable.

What is a valid way to modify a character array in C?

• Assign a new string directly to the array.

• Use the '=' operator to change the entire array.

• Change individual characters one at a time.

• Use a special function to modify the array.