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javaswingjoptionpanejdialog

JOptionPane problems ( Java)

Code:

JOptionPane.showMessageDialog(null,"We're going to calculate the volume of a cylinder", JOptionPane.INFORMATION_MESSAGE);

Error:

Exception in thread "main" java.lang.RuntimeException: Uncompilable source code - Erroneous sym type: javax.swing.JOptionPane.showMessageDialog at ex.Ex.main(Ex.java:15)

I did some research and I am supposed to replace NULL with frame, a thing that I am supposed to declare from the java.awt.dialog library, although even after that it's not working. I just want to display that message box information_message.

Please help.

Solution

  • First advice? Take a breath. You can't code effectively if you're pissed off all the time. You are going to make lots of mistakes, so you don't want to be pissed off. Accept that fact and make the code better.

    I would try passing the parent frame that created the dialog, not the dialog itself.