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Jul 25th, 2014
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  1. public boolean isValid(String str)
  2. for (int i = 0, len = str.length(); i < len; i++) {
  3. if (!Character.isDigit(str.charAt(i)) && !Character.isLetter(str.charAt(i)) && !Character.isSpaceChar(str.charAt(i)))
  4. return false;
  5. else
  6. return true;
  7. }
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