Add MergePDF Kotlin sample #9
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| ) | ||
| ) | ||
| } catch (ex: LibraryException) { | ||
| if (!ex.message!!.contains("An incorrect structure tree was found in the PDF file but operation continued")) { |
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What does the double !! actually do here? In C, a statement like !!(int)value can be a way to turn a variable into a boolean value, is that what is happening here?
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Found an answer: https://kotlinlang.org/docs/null-safety.html#the-operator
To quote: "(!!) converts any value to a non-nullable type and throws an exception if the value is null. "
datalogics-robl
approved these changes
Feb 16, 2024
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Let's add a Kotlin sample to demonstrates how to merge two PDF files together.