Posts by Júnior Gorosh • 31 points

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  Q: Inheritance attributes using abstract class

  I’m looking to use inheritance with parent class being abstract. The point is that I’m using the toString() superscript so that each print of child classes can print their respective data. But when…

  java oop inheritance polymorphism

  asked 6 years, 9 months ago Júnior Gorosh 31

• 2

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  1

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  Q: "Error: Can not Issue data Manipulation statements with executeQuery()" no Select

  Doing the method to select all data from a table, but is returning me error. console: Open bank. java.sql.SQLException: No value specified for parameter 1 No value specified for parameter 1 at…

  java mysql jdbc

  asked 7 years, 9 months ago Júnior Gorosh 31