else if c#

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");
}

if (statment) {
  
}
else if (statment) {

}

int time = 22;
if (time < 10) 
{
  Console.WriteLine("Good morning.");
} 
else if (time < 20) 
{
  Console.WriteLine("Good day.");
} 
else 
{
  Console.WriteLine("Good evening.");
}

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

//Default If condition
                if (comEnvList.Items.Count > 0)
                {
                    comEnvList.SelectedIndex = 1;
                }
                else
                {
                    comEnvList.SelectedIndex = 0;
                }
                //IIf statement
                comEnvList.SelectedIndex = comEnvList.Items.Count > 0 ? 1 : 0;