How to Use Expression Statement in C with Examples

Just like in Mathematics, expression in C language is also a combination of operands on which an operation is applied. While working with C language to develop any code multiple times, a user must create expression statements. Because the code is incomplete without adding expression statements.

If you are a beginner in C language and you are confused about the usage of expression statements in C, then this article is your guide.

Expression Statement in C

While working in C language, variables are used to store values, strings, alphabets, and other such data. To assign any value to a variable or you can say to store any value inside a variable, the expression statement is used.

How to Use Expression Statement in C

The expression statement can be of different types that can be used to assign value to a variable or print a value at the output. It can be a numerical expression like addition, subtraction, division, or multiplication.

Example 1:

An example for the simplest expression statement is given below:

int a = 0;

The above expression statement assigns a value to a variable. Keep in mind that while using any expression statement in C it is important to add a semicolon at the end of it otherwise the statement will show an error while running the code.

Example 2:

There are many other expression statements in C where more than one variable/operand are present and an operation is applied to them:

For instance;

a = b + c;

Other operators in C expression statement are:

a = b + c; //Addition

a = b - c; //Subtraction

a = b / c; //Division

a = b * c ; //Multiplication

Example 3:

Another common expression statement in C is the expression for increment. If a user wants to increase the variable value by one, they can follow the below-mentioned expression statement, the a++ works the same as a=a+1;

a++; //expression for increment

Example 4:

There is another expression statement that prints the value or message on the output window. This expression statement is assigned as follows:

printf(“Hello Users”);

These were just a few examples, by using these same operators many other expression statements can be created to perform different tasks through programs.

Here is a complete C code that uses the expression statements.

#include<stdio.h>

int main()
{
//expression statements
int a=2;
printf(“The value of a is: %d”,a);
}

Output:

Conclusion

Expression statements in C are the major part of any C code whether to assign the value to a variable perform different mathematical operations or printing the value at the output. The above-mentioned guidelines provide useful examples for C programmers to learn about these expression statements.