Question

How to break out of nested for loops in VB.NET

Answer 1

Imports System

Public Class Program
	Public Shared Sub Main()
        Dim _stop As Boolean = False
        Dim i As Integer = 1

        While i <= 30 AndAlso Not _stop
            For j As Integer = 0 To 5 - 1 
                If i = 4 Then
                    _stop = True
                    Exit For
                End If
                Console.Write(j & " ")
            Next
            Console.WriteLine()
            i += 1
        End While

        Console.WriteLine("After loops")
    End Sub
End Class

 

 
 
' run:
'
' 0 1 2 3 4 
' 0 1 2 3 4 
' 0 1 2 3 4 
' 
' After loops
'

 

Cleaner teeth, healthier you!
Get The Secret to a Bright and Healthy Smile

Answer 2

Imports System

Public Class Program
	Public Shared Sub Main()
        For i As Integer = 1 To 30
            For j As Integer = 0 To 5 - 1
                If i = 4 Then
                    GoTo ENDLOOPS
                End If
                Console.Write(j & " ")
            Next
            Console.WriteLine()
        Next

ENDLOOPS:
        Console.WriteLine(Environment.NewLine & "After loops")
    End Sub
End Class


 

 
 
' run:
'
' 0 1 2 3 4 
' 0 1 2 3 4 
' 0 1 2 3 4 
' 
' After loops
'

 

Cleaner teeth, healthier you!
Get The Secret to a Bright and Healthy Smile

Answer 3

Imports System

Public Class Program
	Public Shared Sub Main()
        Do
			For i As Integer = 1 To 30
				For j As Integer = 0 To 5 - 1
					If i = 4 Then
						Exit Do
					End If
					Console.Write(j & " ")
				Next
				Console.WriteLine()
			Next
		Loop While False
		
        Console.WriteLine(Environment.NewLine & "After loops")
    End Sub
End Class


 

 
 
' run:
'
' 0 1 2 3 4 
' 0 1 2 3 4 
' 0 1 2 3 4 
' 
' After loops
'

 

Cleaner teeth, healthier you!
Get The Secret to a Bright and Healthy Smile

Answer 4

Imports System

Public Class Program
	Public Shared Sub Main()
         Try
            For i As Integer = 1 To 30
                For j As Integer = 0 To 5 - 1
                    If i = 4 Then Throw New Exception("")
                    Console.Write(j & " ")
                Next
                Console.WriteLine()
            Next
        Catch
            Console.WriteLine("")
        End Try

        Console.WriteLine("After loops")
    End Sub
End Class



 

 
 
' run:
'
' 0 1 2 3 4 
' 0 1 2 3 4 
' 0 1 2 3 4 
' 
' After loops
'

 

Cleaner teeth, healthier you!
Get The Secret to a Bright and Healthy Smile