Relational operators are used to compare the value of two variables.

Operators

Operator |
Use |

== | Check value of 2 variable are equal |

!= | Check value of 2 variable are equal or not |

> | check is value is greater than |

>= | check is value is greater than or equal to |

< | check value is less than |

<= | check value is less than or equal to |

Example :

```
#include <iostream>
using namespace std;
int main()
{
int a = 21;
int b = 10;
int c ;
// == operator
if( a == b )
{
cout<<"a is equal to b\n";
}
else
{
cout<<"a is not equal to b\n";
}
// < operator
if ( a < b )
{
cout<<"a is less than b\n";
}
else
{
cout<<"a is not less than b\n";
}
// > operator
if ( a > b )
{
cout<<"a is greater than b\n";
}
else
{
cout<<"a is not greater than b\n";
}
// Lets change value of a and b
a = 5;
b = 20;
// <= operator
if ( a <= b )
{
cout<<"a is either less than or equal to b\n";
}
// >= operator
if ( b >= a )
{
cout<<"b is either greater than or equal to b\n";
}
return 0;
}
```

Output :

a is not equal to b a is not less than b a is greater than b a is either less than or equal to b b is either greater than or equal to b