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Dialog Box Problem

JohnnyBravo · 2004-03-10 11:14:02

JOptionPane.showMessageDialog(frame, "ALERT."); Main.java [373:1] cannot resolve symbol symbol : variable frame location: class Main Does anyone know how i can fix this

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10-03-2004 12:14pm

#1

JohnnyBravo

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Posts: 488

JOptionPane.showMessageDialog(frame, "ALERT.");

Main.java [373:1] cannot resolve symbol

symbol : variable frame
location: class Main

Does anyone know how i can fix this

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#2 10-03-2004 12:18pm
seamus

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Posts: 67070

The variable 'frame' that you refer to when you call the Dialog, doesn't exist.

This means that you are trying to call a non-global variable, which essentially doesn't exist in main, or you haven't declared or initialized the frame Object properly.

I don't know if you can omit the frame argument when you call a Dialog. If you can't, use 'this' instead of 'frame'.

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#3 10-03-2004 12:19pm
MagicBusDriver

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use this instead of frame.

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#4 10-03-2004 12:26pm
JohnnyBravo

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Cheers thanks very much

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