Posts by Danilo Ferrari • 21 points

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  Q: java.lang.Nullpointerexception error

  I have this mistake and I can’t find the problem. Exception in thread "AWT-Eventqueue-0" java.lang.Nullpointerexception at windows.TelaPrincipal.getUserList(Telaprincipal.java:53) at…

  java nullpointerexception

  asked 5 years, 9 months ago Danilo Ferrari 21

• -1

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  Q: How is Java related to Mysql?

  I want to develop an expense control software and I want to use Javaswing with Mysql. So I have a question about the database. I know it stays on a server, but when I compile the program and want to…

  java mysql

  asked 5 years, 11 months ago Danilo Ferrari 21