B4X:
Dim components() As String
components = Regex.Split("", "1234")B4A: 5 strings - "" "1" "2" "3" "4"
B4J: 4 strings - "1" "2" "3" "4"
https://www.b4x.com/android/forum/threads/regex-split.157791/
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B4A: 5 strings - "" "1" "2" "3" "4"
B4J: 4 strings - "1" "2" "3" "4"
https://www.b4x.com/android/forum/threads/regex-split.157791/
Found the answer on stackoverflow. The behavior when dealing with an empty String pattern has changed between Java 7 and Java 8. Depending on the version of Android, you may be dealing with Java 6, 7 or 8. This has nothing to do with the with the JDK you use in B4A to generate you APK, but with the Java implemented within Android.
Source: https://stackoverflow.com/q/38513563 (see the comments)
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1
You never quit Mario. I quickly tested and it shows 4 elements in B4A
B4X:
Dim components() As String
components = Regex.Split("", "1234")
Log(components.Length)
For i =0 To components.Length-1
Log(components(i))
Next
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That's exactly what I was writing:
I can't think of a reason; Is it possible that it depends on the jdk used?
JDK 8
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I tested the code in a B4XPages project I use for tests. It contains other stuff.
Just now I created a new "default" project, compiled with jdk 14.0.1 (javac.exe, of course
): 5 strings!
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Is it possible that even when I compile with jdk 14 javac.exe other jdk 8 files are used? But if that were the case, why doesn't the same thing happen with B4J?Just now I created a new "default" project, compiled with jdk 14.0.1 (javac.exe, of course
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It has nothing to do with the JDK you're using, but Android's implementation of (java.util.regex.Pattern) (if it is an actual problem). Are you doing this on a real device? What Android version?
Links:
github.com
Links:
B4A/B4AObjects/src/anywheresoftware/b4a/keywords/Regex.java at 2aeca9711cff3d32587a927935f6a34cc6655672 · AnywhereSoftware/B4A
B4A core libraries. Contribute to AnywhereSoftware/B4A development by creating an account on GitHub.
github.com
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0
This may be related to this issue:
stackoverflow.com
Splitting a String works in Java, doesn't work on Android
So I have this logic which splits a String by 4 characters each. Something like this 0108011305080508000000 gives 0108 0113 0508 0508 0000 00 The logic I used is String [] splitErrorCode = input...
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Yes, Android 8, but the question was asked by another Italian member, who most likely has a more recent Android.
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