What is Java Regex to match number then space then 3 alphabet char? -

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i want validate of money currency unit. 

 100 usd : valid 1.11 usd : not valid 1,12 usd : not valid 12 : not valid

so valid string "the number space 3 alphabet char".

text.matches("^\\d+ [a-za-z]{3}*$")

i got error: exception caught: dangling meta character '*' near index 16 ^\d+ [a-za-z]{3}*$

so how fix it?

i fixed obmitting * fine:

text.matches("^\\d+ [a-za-z]{3}$")

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