"How do I call the paint method which is in another Package?"
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Posted By:   Ziyaaf_Gaffoor
Posted On:   Saturday, October 30, 2004 08:46 AM

I am currently creating a Paint Application .And i have created the "Main Frame(Jframe)" , "Shape Properties(JDialog)" and "Drawing Area(JPanel)" in seperate packages.
When the user clicks on the Draw Area (say that he has selected to draw a line), the "LineProperties Dialog" opens and when he enters the line thickness,line location and clicks "ok" I call the "paint(Graphics g)" method which is in the "Drawing Area(JPanel)" .
But it throws a NullPointer Exception" .

Or even simply "How do I call the paint method which is in another Package?"

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