Syntax:
Operand1 == Operand2
Operand1 != Operand2
Operand1 < Operand2
Operand1 <= Operand2
Operand1 > Operand2
Operand1 >= Operand2
Example:
Input:
int a = 10;
int b = 3;
Console.WriteLine("a==b: {0}", (a == b));
Console.WriteLine("a!=b: {0}", (a != b));
Console.WriteLine("a>b : {0}", (a > b));
Console.WriteLine("a>=b: {0}", (a >= b));
Console.WriteLine("a<b : {0}", (a < b));
Console.WriteLine("a<=b: {0}", (a <= b));
Output:
a==b: False
a!=b: True
a>b : True
a>=b: True
a<b : False
a<=b: False
C# code to demonstrate an example of relational operators:
// C# program to demonstrate example of
// relational operators
using System;
using System.IO;
using System.Text;
namespace JustTechReview
{
class Test
{
// Main Method
static void Main(string[] args)
{
int a = 10;
int b = 3;
//printing return type
Console.WriteLine("Return type of == operator: {0}", (a == b).GetType());
Console.WriteLine("Return type of != operator: {0}", (a != b).GetType());
Console.WriteLine("Return type of > operator : {0}", (a > b).GetType());
Console.WriteLine("Return type of >= operator: {0}", (a >= b).GetType());
Console.WriteLine("Return type of < operator : {0}", (a < b).GetType());
Console.WriteLine("Return type of <= operator: {0}", (a <= b).GetType());
//printing return values
Console.WriteLine("a==b: {0}", (a == b));
Console.WriteLine("a!=b: {0}", (a != b));
Console.WriteLine("a>b : {0}", (a > b));
Console.WriteLine("a>=b: {0}", (a >= b));
Console.WriteLine("a<b : {0}", (a < b));
Console.WriteLine("a<=b: {0}", (a <= b));
//checking conditions
if (a == b)
Console.WriteLine("a is equal to b");
else
Console.WriteLine("a is not equal to b");
if (a != b)
Console.WriteLine("a is not equal to b");
else
Console.WriteLine("a is equal to b");
if (a > b)
Console.WriteLine("a is greater than b");
else
Console.WriteLine("a is not greater than b");
if (a >= b)
Console.WriteLine("a is greater than or equal to b");
else
Console.WriteLine("a is not greater than or equal to b");
if (a < b)
Console.WriteLine("a is less than b");
else
Console.WriteLine("a is not less than b");
if (a <= b)
Console.WriteLine("a is less than or equal to b");
else
Console.WriteLine("a is not less than or equal to b");
//checking conditions in another way
if ((a == b) == true)
Console.WriteLine("a is equal to b");
else
Console.WriteLine("a is not equal to b");
if ((a != b) == true)
Console.WriteLine("a is not equal to b");
else
Console.WriteLine("a is equal to b");
if ((a > b) == true)
Console.WriteLine("a is greater than b");
else
Console.WriteLine("a is not greater than b");
if ((a >= b) == true)
Console.WriteLine("a is greater than or equal to b");
else
Console.WriteLine("a is not greater than or equal to b");
if ((a < b) == true)
Console.WriteLine("a is less than b");
else
Console.WriteLine("a is not less than b");
if ((a <= b) == true)
Console.WriteLine("a is less than or equal to b");
else
Console.WriteLine("a is not less than or equal to b");
//hit ENTER to exit the program
Console.ReadLine();
}
}
}
Output:
Return type of == operator: System.Boolean
Return type of != operator: System.Boolean
Return type of > operator : System.Boolean
Return type of >= operator: System.Boolean
Return type of < operator : System.Boolean
Return type of <= operator: System.Boolean
a==b: False
a!=b: True
a>b : True
a>=b: True
a<b : False
a<=b: False
a is not equal to b
a is not equal to b
a is greater than b
a is greater than or equal to b
a is not less than b
a is not less than or equal to b
a is not equal to b
a is not equal to b
a is greater than b
a is greater than or equal to b
a is not less than b
a is not less than or equal to b