Float and Ints

Floats( float ) and integers( int ) are two widely used datatypes in programming environments.

  • An integer is an integral data type used to store whole numbers.

  • A float has the ability to store decimal or floating-point​ numbers.

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Float Int
Size 32 bits 32 bits
Range 1.2 x 10-38 to 3.4 x 1038 -2,147,483,648 to 2,147,483,647
Example 2.4, 3.8, 11.2 1,22,55

Code

Thefloat and int datatypes are a little bit different. Here is a sample code for a better understanding.

In the example above, integer variable a and float c prints the exact value as assigned to it; whereas, b is an integer variable and only stores 9 instead of 9.5.

#include <iostream>

using namespace std;



int main() {

  // Integer whole number assigned to int a 

  int a = 5;

  // Floating point number assigned to an integer value b.

  // It will store the value before decimal i.e 9

  int b = 9.5;

  //Floating point number assigned to float c.

  float c = 7.8;

  

  //output can be seen with cout command.

  cout << a <<endl << b << endl << c <<endl;

  

  return 0;

}

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