How to print "Hello World" in C

Creating Hello World Program in C

1. Create a C file (with .c file extension) and open the file in your favorite C code editor.
2. Add #include <stdio.h> at the top of the file. This code is used to include the standard input-output header file stdio.h , which contains functions for input and output operations in C.
#include <stdio.h>
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#include <stdio.h>
3. Add int main() { } function. This is the starting point of the program and C code blocks are placed inside the curly braces {} of main function. Every C program must have a main() function, and execution of the program begins from here.
#include <stdio.h> int main() { //C code blocks are placed here }
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    #include <stdio.h>
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​
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    int main() {
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    //C code blocks are placed here
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​
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    }
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4. Add printf("Hello World!"); C code inside the curly braces of main function. printf() is a built-in function of stdio.h header file. The string "Hello World!" will be displayed. You can add your preferred text instead of "Hello World!".
#include <stdio.h> int main() { printf("Hello World!"); }
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    #include <stdio.h>
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​
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    int main() {
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        printf("Hello World!");
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​
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    }
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5. Add return 0;. It indicates the end of the main() function.
#include <stdio.h> int main() { printf("Hello World!"); return 0; }
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    #include <stdio.h>
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​
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    int main() {
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        printf("Hello World!");
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        return 0;
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​
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    }
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We have completed the C hello world program. Hello World! will be displayed as output when the program is executed. Please take a closer look at the following example: