Constant is providing a facility to declare a variable Constant. System will give run time error If user will try to initialize again.
'Constant is a named memory location used to hold a value that CANNOT be changed during the script execution.'If a user tries to change a Constant Value, the Script execution ends up with an error.
'Constants are declared the same way the variables are declared.
Dim Var1
var1=20
Const ConsVar1 =25
'Const Dim ConsVar2 =25 ' Expected Identifier
'Const ConsVar3 ' Expected =
'ConsVar3=30
MsgBox " Normal Variable Before change "&Var1
MsgBox " Constant Variable "&ConsVar1
var1=20
'ConsVar1=20 'illegal assignment
MsgBox " Normal Variable After change "&Var1