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sumanssaurabh/javacommon.md

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Created March 31, 2019 22:49
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Java common
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javacommon.md

Java common

Strings

Find a substring by a regular expression:

  String pattern = "(.*)(\\d\\d\\d\\d)(.*)";
  String line = "2018-11-22 00:00:00";
  Pattern re = Pattern.compile(pattern);
  Matcher matcher = re.matcher(line);
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