Posts by Thomas • 1 point

• 0

  votes

  2

  answers

  386

  views

  A: Error while trying to run a class

  Missing the import of the class JOptionPane. As already said by Victor, you can import it with import javax.swing.JOptionPane; at the beginning of the code. But since in this case you’re only using…

  java netbeans

  answered 8 years, 11 months ago Thomas 1