What will be the output of the following C# code?
static void Main(string[] args)
{
string s1 = “Hello”;
string s2 = “hello”;
if (s1 == s2)
Console.WriteLine(“Equal”);
else
Console.WriteLine(“Unequal”);
if (s1.Equals (s2))
Console.WriteLine(“Equal”);
else
Console.WriteLine(“Unequal”);
Console.ReadLine();
}
a) Equal
Unequal
b) Unequal
Equal
c) Equal
Equal
d) Unequal
Unequal

Answer: d
Explanation: In first comparison it is being checked either two strings are equal or not but in second comparison it is checked whether two references are equal or not.
Output:
Unequal
Unequal