I am a little bit lost with version of
<groupId>org.apache.poi</groupId>
<artifactId>poi-ooxml</artifactId>
I tried version 3.17, 4.0.0 and 5.0.0.
if (c.getCellType () == CellType.NUMERIC.getCode())
{
}
or
if (c.getCellTypeEnum () == CellType.NUMERIC)
{
}
I was not able to get a code free of deprecation or type-errors :-(
I am using Eclipe with Maven and Java 11. After the cange of the version I did "Update Project" to update Maven.