how to use if and else in c3 code example

Example 1: c# else if

string emotions;
emotions = Console.ReadLine();
//for emotions say the user input was either
//happy,sad and mad
if (emotions == "happy")
{
  Console.Write("You are happy");
}
else if (emotions == "sad")
{
    Console.Write("You are sad");
}
else if (emotions == "mad")
{
    Console.Write("You are mad");
}
else
{
    Console.Write("Unknown input");
}

Example 2: if statement c#

if (condition)
{
  print("Yes");
}
else
{
  print("No");
}