awt

I read on SO that mixing awt and swing is not really a good approach for GUI programming in Java. I cannot though, find any examples which does not use some awt components while using swing. For example, even when using swing, most of the example I have encountered will use awt for layout and event handling. That being said, what does it mean not to mix swing and awt in GUI programming using Java? Does it just mean not to borrow graphical widgets such as button, canvas from swing and awt at the same time or just completely use swing or awt alone? Or it is okay to use graphical units ( like

I have two JButtons called "Left" and "Right". The "Left" button moves a rectangle object to the left and the "Right" button moves it to the right. I have one ActionListener in the class that acts as the listener for when either button is clicked. However I want different actions to happen when each are clicked. How can I distinguish, in the ActionListener , between which was clicked? Amarnath Set actionCommand to each of the button. // Set the action commands to both the buttons. btnOne.setActionCommand("1"); btnTwo.setActionCommand("2"); public void actionPerformed(ActionEvent e) { int

I know that in java that we use *(asterisk) to import all the contents in a package like import java.lang.*; Then why don't we use same *(asterisk) in C# to import all the contents is there any method like in java to import all the contents. What is the difference between import java.awt.*; and using System.windows.forms; What the Java import does what .NET is called a reference - adding a reference to an assembly in .NET allows you to use the (public) types defined in that assembly. The C# using directive is simply a way to access these types without typing out the whole namespace. You can

I need to hide the arrow buttons of java.awt.Scrollbar(VERTICAL) in an AWT application. Does anyone know how this can be achieved? I saw an example here , but the code just hides the buttons. The vacant space for the buttons still remains; it is not occupied by the scroll bar. To be more exact, here is the screenshot of what I should achieve. I am not sure which direction to go about it. Update : I was looking for a solution in AWT. But now I am open to suggestions in Swing as well. Harry Lime Try this.. it replaces the regular buttons on the Vertical ScrollBar with buttons that are 0x0 in

How to get FontMetrics without use Graphics ? I want to get FontMetrics in constructor, now I do this way: BufferedImage bi = new BufferedImage(5, 5, BufferedImage.TYPE_INT_RGB); FontMetrics fm = bi.getGraphics().getFontMetrics(font); int width = fm.stringWidth(pattern); int height = fm.getHeight(); Hmm... It is quite logical that you need graphics to get FontMetrics. Font height, width etc. can differ on various displays. If you have some Component, you can use it for getting FontMetrics: component.getFontMetrics(font); No you do not necessarily need to get/use the graphics object: Font font

I have a question about the 'Event Dispatch Thread'. I have a Main class that is also a JFrame. It initialises the rest of the components in the code, some of them do not involve Swing and some of them do. Is it enough to simply initialise the Main class using the EDT like this?... public static void main(String[] args) { javax.swing.SwingUtilities.invokeLater(new Runnable() { public void run() { new Main(); } }); } This way everything would run on the Event Dispatcher thread. That is generally sufficient until you start making use of background threads for calculations, data acquisition, etc.