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How do I read null data in EspressAPI to replace 0 value for the purpose of eliminating colored line in stackcolumn chart?

April 26, 2017colored Data eliminating null purpose read replace value

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How do I read null data in EspressAPI to replace 0 value for the purpose of eliminating colored line in stackcolumn chart?

2 Answers

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Reading from a data file, the zero data is “0” or 0 and the null data “” with Chart Designer. However, the null data is null instead of “” with Chart API. This is because null is a keyword in Java but not in txt file. java.lang.NoClassDevFoundError java.awt.Window in running Weblogic / EspressChart servlet on W2000.

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Reading from a data file, the zero data is “0” or 0 and the null data “” with Chart Designer. However, the null data is null instead of “” with Chart API. This is because null is a keyword in Java but not in txt file.