Exploring C: Strings, Arrays, Functions

What is a string in C programming?

• A string in C is a type of function.

• A string in C is a fixed-length integer.

• A string in C is a single character.

• A string in C is an array of characters ending with a null character.

How do you declare an array in C?

• arrayName = new type[arraySize];

• type arrayName[];

• array arrayName(arraySize);

• To declare an array in C, use the syntax: type arrayName[arraySize];

What is the purpose of the 'strlen' function?

• To concatenate two strings together.

• To find the first occurrence of a character in a string.

• To determine the length of a string.

• To convert a string to uppercase.

How can you initialize a string in C?

• char str[] = "Hello, World!";

• string str = "Hello, World!";

• char str = 'Hello, World!';

• char* str = 'Hello, World!';

What is the difference between a character array and a string?

• Strings are always mutable, whereas character arrays are immutable.

• A character array can only store single characters, while a string can store multiple data types.

• A character array is a type of string that cannot be modified.

• A character array is a low-level representation of characters, while a string is a higher-level abstraction with built-in functionalities.

How do you access elements in an array?

• Use array[index] to access elements.

• Elements can be accessed using array->index.

• Access elements by calling array[index].get() method.

• Use array.get(index) to access elements.

What function is used to copy strings in C?

• strlen

• sprintf

• strcat

• strcpy

Explain how to pass an array to a function in C.

• Use a pointer to the first element of the array and pass it as a single integer value.

• Declare the function without any parameters and access the array globally.

• Declare the function with a parameter of type 'type *' and pass the array name when calling the function.

• Declare the function with a parameter of type 'type[]' and pass the array size when calling the function.

What is the output of the following code: char str[] = "Hello"; printf("%c", str[1]);?

• l

• o

• e

• H

How do you concatenate two strings in C?

• Use append(destination, source) from .

• Combine strings with string1 + string2.

• Use strcat(destination, source) after including .

• Use join(destination, source) in .