Public Class Tester
Public Shared Sub Main
Dim arrayToSort() As Employee = { _
New Employee("F", "O"), _
New Employee("V", "O"), _
New Employee("F", "A"), _
New Employee("V", "C"), _
New Employee("F", "G")}
Array.Sort(arrayToSort)
For Each food As Employee In arrayToSort
Console.WriteLine(food.ToString())
Next food
End Sub
End Class
Public Class Employee
Implements IComparable
Public FirstName As String
Public LastName As String
Public Sub New(ByVal theGroup As String, ByVal theItem As String)
FirstName = theGroup
LastName = theItem
End Sub
Public Overrides Function ToString() As String
Return FirstName & ": " & LastName
End Function
Public Function CompareTo(ByVal obj As Object) As Integer _
Implements System.IComparable.CompareTo
Dim compareValue As String
compareValue = obj.ToString()
Return String.Compare(Me.ToString(), compareValue)
End Function
End Class
F: A
F: G
F: O
V: C
V: O