Statements in C

In C, everything we write comes under a statement. A C program contains many number of statements. These are the building blocks of your C program.

Every Statement is ended up with a semicolon(;) except for the directives i.e., declared with the pre-processor (#).

For example,

x=2+3;

is a normal statement which adds up the values 2 and 3 and place the resulting value into the variable x.

White Spaces in Statements: 

In C, generally white spaces are not considered into account. This means that, if a statement consists of white spaces, it ignores all the spaces and takes the statement. 

For example, 

x = 2 + 3 ;

is similar to

x=2+3;

This provides a flexibility for us to write the code easily. We can also write the code to be as

x=

2

+

3

;

But this is not a good practice to write like this.
Consider another example,

printf(

"Hello World"

);

is a valid presentation, but we can't split up the String literal

printf("Hello

World");

If we want to split up like that, we have to place a backslash('\') while separating and split the string.

printf("Hello \

world");

Null Statements: 

Null Statements are those which doesn't have anything in them. Sometimes we need to write such a statements to fulfill the syntax. Suppose, in a for loop, we don't have any initialization condition, then we place a null statement and proceed. Null Statement is nothing but an empty statement.

For example,

;

Compound Statements: 

Compound Statements are the statements which are represented in the blocks of statements. In C, we write the blocks of the statements in between the curly braces ({....}). All the statements represented under the opening and closing braces comes under one section. These are local to that block of statements. 

For example,

{

x=2+3;

printf("In the block");

}

Thus we represent the compound statements.