awt

I have two separate class and driver files, and in the class file I create the paint method: public void paint(Graphics g){ g.drawLine(...... .... //along with all of my other draw commands } Further down in the code, I create a JButton and within this button's action listener I don't know how to use a Graphics object to create more graphics in the JFrame. Should I be adding something to my driver to make this happen, or is there a way to use these graphics within my action listener? Thank you, and any help is appreciated. Paul Samsotha You need to draw everything within the paint method. The

I am having trouble generating multiple oval shapes when clicking the panel of the frame. What I want is that it will generate many oval shapes and those shapes will move downward. One of the requirement is to use two multi threading. However in my case, the program I created is that, it will only generate one oval shape and the position is randomly changing. Can anyone please help me one this. package ovalrandomcolors; import java.awt.Color; import java.awt.Component; import java.awt.Graphics; import java.awt.Graphics2D; import java.util.List; import java.awt.Shape; import java.awt.event

I am using the following code for taking a screenshot: Robot robot = new Robot(); BufferedImage image = robot.createScreenCapture(screenRectangle); ImageIO.write(image,"png", file); This code is running good. It takes screen shots of my desktop when I run the program, etc. However, when I try to run first some game, application in full screen , it doesn't work properly. It renders either black screen, either the same "initial" picture. Is this problem known, and how to fix this please? Second question : Is this possible to simulate some "Print Screen" key we can have on keybord in order to

I have just created a java tic-tac-toe game i would like to figure out how to run a method once the enter key is pressed during a certain condition an example is below... if(/*condition is met*/){ //keyListener } Depending on where you want to trap the "enter" key, you could use an ActionListener (on such components such as text components or buttons) or attach a key binding to you component public class MyPanel extends JPanel { public MyPanel() { InputMap im = getInputMap(WHEN_FOCUSED); ActionMap am = getActionMap(); im.put(KeyStroke.getKeyStroke(KeyEvent.VK_ENTER, 0), "onEnter"); am.put(

How would I add an actionListener to the jDayChooser component of an existing jCalendar placed using netbeans? I would like to only trigger an event only when the day buttons are clicked. as the propertyChange in jCalendar listens to even the jMonthChooser and jYearChooser P.S. using toedter's jCalendar Alternatively, you can listen for the specific propertyName , "day" . JDayChooser jdc = new JDayChooser(); jdc.addPropertyChangeListener("day", new PropertyChangeListener() { @Override public void propertyChange(PropertyChangeEvent e) { System.out.println(e.getPropertyName()+ ": " + e

I'm developing a web application which use JFreeChart to render chart. However, when server dose not have any Chinese font installed, JFreeChart dose not display Chinese character even if I have set the font. Then I write a small testing code and find out that add this line of code before drawing the chart can solve the problem. GraphicsEnvironment.getLocalGraphicsEnvironment().registerFont(font); So my questions are - Why do I have to register font into JVM even if I create my font from File ? Dose that mean JFreeChart do not use the font I set directly ? When I deploy my program into server,

How could I make non-rectangular windows with soft borders in Java? Soft borders (also known as soft clipping) are borders without aliasing artifacts. I searched the web a lot and found several posts about translucent and/or non-rectangular windows. The topic "soft border" is confusing. It seems that the information I found deals with applying soft borders to component which are inside another Java components. But, can I, or can I not apply soft borders to custom shaped JWindow which is placed just on the desktop? I am primely referring to following post: http://today.java.net/pub/a/today/2008