C Keywords

C language is a structured programming language and uses a set of keywords to specify the instructions to be executed by the computer. These keywords have predefined meanings and cannot be used for any other purpose.

Syntax

The syntax of C language keywords is as follows:

keyword word;

Example

#include <stdio.h>

int main() {
   int number1 = 5, number2 = 10;
   int sum = number1 + number2;
   
   printf("The sum of %d and %d is: %d\n", number1, number2, sum);
   
   return 0;
}

Output

The output of the above program will be:

The sum of 5 and 10 is: 15

Explanation

C keywords are reserved words that are used to identify specific operations or commands to the compiler. These keywords cannot be used as variable names or any other identifiers in the program. Keywords in C language are case-sensitive and each keyword carries a specific meaning and functionality in the program.

Use

C language keywords are used to define the structure of a program and specify the functions of variables, loops, and conditions. Keywords are an essential part of any programming language as they define the syntax and structure of the language.

Important Points

• C language has a set of predefined keywords that cannot be used for any other purpose.
• Keywords are case-sensitive.
• You cannot use a keyword as a variable or function name.
• C keywords provide a fundamental structure for programming, including loops, conditions, and data types.

Summary

C language keywords are fundamental to programming in C, providing the building blocks for a program's structure and functionality. They carry predefined meanings and cannot be used as variable names or any other identifiers. Understanding the basic syntax, meanings, and uses of keywords in C language is critical to writing efficient and effective C programs.