Nested If and Single line if statement

 Nested If statement Option Strict On Imports System Module Module1 Sub Main( ) Dim temp As Integer = 8 If temp <= 8 Then If temp = 8 Then Console.WriteLine("temp = 8") Else Console.WriteLine("Temp: {0}", temp) End If End If End Sub End Module Nested if statement helps to check multiple number of conditions here in this example we take a variable temp and assign the value of 8 to it now in the first if statement we check whether temp is less than or equal to 8(which is true) so it will get into the next if statement which checks whether temp is equal to 8(which is again true) and prints temp =8. Single line if statement public class Test public Shared Sub Main Dim Score As Integer Score = 23 'Single line If statement. If Score < 50 Then Console.WriteLine("Failed.") : Console.WriteLine("Please try again.") 'Multi-line If statement. If Score < 50 Then Console.WriteLine("Failed.") Console.WriteLine("Please try again.") End If End Sub End class In this example we have shown both multi-line and single line if statements, single line if statements though may look complex if you have large number of conditions is effective and helpful to reduce the number of program lines.