C Statements

 

Statements

A computer program is a list of "instructions" to be "executed" by a computer.

In a programming language, these programming instructions are called statements.

The following statement "instructs" the compiler to print the text "Hello World" to the screen.

Example

printf("Hello World!");(code-box)

It is important that you end the statement with a semicolon ;

If you forget the semicolon (;), an error will occur and the program will not run:

Example

printf("Hello World!")

error: expected ';' before 'return'(alert-error)       

                                                                                       

Many Statements

Most C programs contain many statements.

The statements are executed, one by one, in the same order as they are written:

Example

printf("Hello World!");
printf("Have a good day!");(code-box)

 

Example explained

From the example above, we have three statements:

1. printf("Hello World!");
2. printf("Have a good day!");

The first statement is executed first (print "Hello World!" to the screen).

Then the second statement is executed (print "Have a good day!" to the screen).

And at last, the third statement is executed (end the C program successfully).

You will learn more about statements while reading this tutorial. For now, just remember to always end them with a semicolon to avoid any errors.

Coming up: The next chapter will teach you how to control the output and how to insert new lines to make it more readable.(alert-passed)

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