jpanel

问题 I'm making a function grapher that take 4 parameters and size for the Panel, but I don't know how to create a Panel class that will draw the information from the Grapher class. Can some one help please?(The parameters are not important, I just want to learn how to make a Graph Panel for later use) Panel Class import java.awt.BorderLayout; public class Panel extends JFrame { private JPanel contentPane; /** * Launch the application. */ public static void main(String[] args) { } /** * Create the

问题 Hello Is it possible to draw in a JPanel what the java console is returning ? have you got a tutorial to follow ? thanks sw 回答1: I can't remember where I found this, but I have outputted the output stream to a JTextArea held in a JPanel using a class I call TextAreaOutputStream: import java.io.IOException; import java.io.OutputStream; import javax.swing.JTextArea; import javax.swing.SwingUtilities; public class TextAreaOutputStream extends OutputStream { private final JTextArea textArea;

问题 I built a class that extends JPanel , and I have been setting a size on it every time. But now I need multiple instances of that JPanel sub-class to exist on another panel. I am using GridBagLayout , but my components disappear when I resize the Frame or take away the setSize(800,100) from the JPanel subclass. How do I built components that will obey these layout managers ? I want my custom component to be able to fit to the size that the layout manager asks for. Here is my custom component

问题 I'm trying to add multiple Jlabels in a Jpanel with Box layout, But i'm facing prolems on setting their setAlignmentX() . I'm reffering to an example from this site of Text bubble border and trying to pull out some examples from it. The jpanel is then added in Jscrollpane. My code is here !!! //Source :Andrew Thompson class TextBubbleBorder extends AbstractBorder { private Color color; private int thickness = 4; private int radii = 8; private int pointerSize = 7; private Insets insets = null;

问题 I'm trying to figure out how to create a vertical TitledBorder in a JPanel . I've got this situation: I'd like to have "Actuators st..." placed vertically, so user can read it. Is there a way to do it, or should I implement my own customized JPanel & TitledBorder ? 回答1: maybe crazy idea but is possible with JSeparator too :-) required proper LayoutManager , maybe GridBagLayout ( JComponent placed without GBC can take PreferrredSize from JComponent , but isn't resiziable), not GridLayout

问题 I have a JFrame created with GUI builder of Netbeans, which contains a JPanel only. I have created a method getPanel for getting a reference to this JPanel: public class ShowDrawings extends JFrame { public ShowDrawings() { initComponents(); } public JPanel getPanel(){ return panel; } private JPanel panel; } In my main function I am doing: public class Main { public static void main(String[] args){ ShowDrawings sd = new ShowDrawings(); sd.setSize(800, 600); Graphics g = sd.getPanel()

问题 I have a MainPanel which uses the Gridlayout . Consequently I have created four JPanel classes for the: NORTH, EAST, CENTER and EAST layouts respectively. I then add all four to my MainPanel . However, on my WEST panel I use another grid layout to store JButtons and JTextFields . I want to constantly update my JTextFields as they display a value (that changes when a button on another panel is clicked). How do I allow that value to be changed when the JFrame is running? I tried using

问题 I made a java game that is all based on JPanel. When I add it to a JFrame it works perfectly, and when I add it to a JApplet and test it with the built in applet tester of eclipse it works perfectly. However, when I try to run the applet through an html site it doesn't work. It loads, but it doesn't take keyboard input. I have it set up where "pressing s" starts the game, but even when I click on the game and press s, nothing happens. Do I have to set the keyboard focus, because I thought

问题 I'm working on a project using Java3D and Jmol (it's a viewer for chemical structures in 3D). I have to create view that is able to switch between Java3D and Jmol representation of structures. I have managed to do that, but when I swap JPanels with JmolPanel and Canvas3D in them, I get blinking of the swapped area. I'm swapping panels simply by doing: public static void changeView(JPanel c) { c.removeAll(); if (var) { c.add(canvas); } else { c.add(jmolPanel); } c.revalidate(); var = !var; }

问题 I have some bits of code with a lot of help from fellow programmers in SO. First off, Thank you all for that. Now I have this code for hangman. I want the textfield to appear below the image, right now it is shooting on top of it. I have provided the link for the image in the code. but you might need to download it to avoid exception thrown. I want to keep top right corner free for timer, which I have not thought how to do yet. I need assistance in getting image and texfield in correct