What is the usage of strings in the C language?

In C language, strings are represented as null-terminated character arrays. C language does not have a built-in string type, and instead uses character arrays to represent strings.

Here are the common uses of strings in the C programming language:

1. Declare a string variable: You can declare a string variable using a character array, for example: char str[10];
2. Initialize a string: You can initialize a string variable by using string literals, for example: char str[] = “Hello”;
3. To input a string: You can use either scanf or fgets functions to read a string from the standard input, for example: scanf(“%s”, str);
4. To output a string, you can use the printf function, for example: printf(“%s”, str);
5. Manipulating strings: you can use functions from the C standard library, such as strcpy, strcat, and strlen, to copy, concatenate, and get the length of strings.

It is important to note that in C language, strings are represented as character arrays with a null terminator at the end, so it is necessary to ensure that a null character is present at the end of the string to indicate its completion.