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how my scrollbar works?

 
Greenhorn
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hi....
i wrote code to draw a graph(line) by tacking data from a file ....the code for that is here...




Now the problem is the scrollbar is not working to see complete graph when i'm giving many input values.......
The here is the calling class(main) of the above code.....


the i don't how to implement this listener .....
----------------------------------------------------



i'm attaching output screen also...actually there i haven taken around 90+ input values...

please help me .....
thank u....



output.jpg
[Thumbnail for output.jpg]
output of the above program...
 
Bartender
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Scrollbars work when the size of their child components exceed the available display say.
Try overriding getPreferredSize() in your panels (the one which paints the graphs)
 
vishnu vardhan brundavanam
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could you show the code how to implement that getPreferredSize() in my application...?
 
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vishnu vardhan brundavanam
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could you please complete this program..?
 
Darryl Burke
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Read the API for JScrollPane and follow the link to the Java tutorial on How to Use Scroll Panes, where you will find example code.
 
Consider Paul's rocket mass heater.
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