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Regular expression integer positivo


Go to solution Solved by nelsonr,

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Tenho este método:

private boolean isNumeric(String str)
   return str.matches("-?\\d+(\\.\\d+)?");  //match a number with optional '-' and decimal.

que verifica se a string é um numero (decimal ou inteiro negativo ou positivo)

Eu quero que a expressão só verifique se o numero é um integer positivo. Como deve ficar?

Edited by alexandre1985
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