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how to paint on a Jpanel?

how to paint on a Jpanel?# Java - 爪哇娇娃

d*n2003-04-19 07:04

1 楼

I only know to paint an applet. And I know there is a method named
paintComponent(Graphics page) which belongs to JComponent. But I have no idea
how to paint on a Jpanel or Jlabel. Any idea? THANKS!!!

c*t2003-04-19 07:04

2 楼

If you subclass JPanel, you overload paintComponent(Graphics g) function.
However, the first line of the function should be super.paintComponent(g).

【在 d******n 的大作中提到】

: I only know to paint an applet. And I know there is a method named
: paintComponent(Graphics page) which belongs to JComponent. But I have no idea
: how to paint on a Jpanel or Jlabel. Any idea? THANKS!!!

d*n2003-04-19 07:04

3 楼

能不能说得更详细一些呢？
我确实 overload le paintComponent(Graphics g) function.
and the first line of the function is super.paintComponent(g).
But I have several Jpanels in that application, how to display
what I paint on the specified Jpanel which I really want?

idea

【在 c*****t 的大作中提到】

: If you subclass JPanel, you overload paintComponent(Graphics g) function.
: However, the first line of the function should be super.paintComponent(g).