Regular expression - allow digits but no dash punctuation mark

Question

I want to write a regular expression. Here is my basic requirement:

1. Only allow 11 numbers.
2. Cannot have a dash (-) inside these 11 numbers.

Here is the regular expression that I wrote:

\d{11}[^-]

Examples:
a) 12345654321 => Valid
b) 123-4567890 => Invalid
c) -1234567890 => Invalid
d) 1234567890- => Invalid

I didn't get the proper result. How should I correct it?

Answer 1

^\d{11}$ 

this should do it....... With anchors