B4J Question strin.compareTo i do while loop

[LukaszK]

Hi Experts! Iam beginnier with b4j. I try to filter txt fil during reading it i do while loop. Why i cant do that, resulting an error? In uppe place i do that with succes outside do while loop. What is the reason?

 

[Swissmade]

==0 is wrong its not C
Has to be =0

 

[aeric]

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