VARIABLES IN C LANGUAGE

 

Variables in C

BY CHAITANYA SINGH | FILED UNDER: C-PROGRAMMING

A variable represents a memory location that stores the data. For example: an int variable num has a value 10 (int num = 10), here the variable name is "num" that represents the location in the memory where this value 10 is stored. As the name suggests, the value of a variable can be changed any number of times.

Syntax – Declaring a variable

data_type variable name;

For example:

//a variable num of int type
int num; 

//two variable ch1 and ch2 of char type
char ch1, ch2; 

//three variable x, y and z of float type where y has been
// initialized with a value and other variables x & z are 
// un-initialized.
Float x, y=10.5, z;

Example: Variables in C

#include <stdio.h>

int main()
{
  int num1 = 20, num2 = 50;
  char ch = 'A';
  float x = 10.5, y = 13.5;
  printf("Variable 'ch' value: %c\n", ch);
  printf("Variable num1 and num2 values: %d\t%d\n", num1, num2);
  printf("Variable x and y values: %f\t%f\n", x, y);
  return 0;
}

Output:



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