Need help in creating a certain regular expression 1

[thelordoftherings]

Hello,

I need to validate a certain String, it suppose to be a cellular number at this format: <prefix>-<number>
the <prefix> can be "052", "054", "050" and "057" only.
the <number> should contain excactly 7 digits, it must be 7 and must be digits.
A legal number for example: 052-2285698
Can anyone please help me acheive this using regular expressions?

Regards,
Roy

 

[stefanwagner]

String regexp = "05[0247]-[0-9]{7}";


seeking a job as java-programmer in Berlin:

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[thelordoftherings]

10X!