No one has voted on any posts yet. Votes from other community members are used to determine a member's reputation amongst their peers.
|
hey guys i am developing a game... in which when i press a button it has to change its color... so , i created button, used action listener to it... [CODE] if(ae.getActionCommand().equals("b1")) // here b1 is the button { b1.setBackground(Color.black); frame.invalidate(); frame.validate(); System.out.println("button b1 pressed...!!!"); } [/CODE] i also used …
|
|
|
i am using an array of JButtons b[23].... my objective is that when i click a button it has to change its background color to black but it is giving a nullpointer exception.... if(ae.getActionCommand().equals("0")) { System.out.println("button b[o] is pressed"); b[0].setBackground(Color.black); } } can anyone help me with this please........
|