jframe

I have 2 classes; Students and RegisterStudents, and hence 2 different main_panel(Class 1) and panel_1 (Class 2). What I am trying to do is, when a button on the Students Interface is pressed, the whole panel_1 should appear within main_panel. I have set both to same size already. is that possible? The code i got so far is: JButton btnNewButton = new JButton("Register Student"); btnNewButton.addMouseListener(new MouseAdapter() { @Override public void mouseClicked(MouseEvent arg0) { Students main_panel = new Students(); RegisterStudent panel_1 = new RegisterStudent(); main_panel.add(panel_1); }

How do I make a JPanel move while a button is held down and stop when the button is released. I have tried using thread.start() with a Runnable and ways like that. I always run in to errors. Can anyone help me though? There are a number of important considerations that you need to take into consideration. Buttons aren't designed to work this way. They are designed to trigger and action event when they are clicked (pressed and released), so you can't use the normal action API. Lucky for us, there are other ways to determine the state of buttons. This example uses a ChangeListener on the

I have a 2d game which the entire structure is completely coded except the graphics. I am just updating the single component of a JFrame which is a Graphic containing 50 images. Each frame the images are in a different location hence the need for a refresh rate. To paint, I have overridden the paintComponent() method, so all I really need to do is repaint the component (which, again, is just a Graphic) every 40ms. How do you set up a JFrame with 25FPS? trashgod This AnimationTest uses javax.swing.Timer . A period of 40 ms would give a rate of 25 Hz. private final Timer timer = new Timer(40,

I've posted my code below. I have the simple task of creating a navigable GUI. I've spent the past few hours doing research on how to accomplish this, and this is the code that I've put together. Originally I wanted to perform the navigation without any layouts or anything. I need the home panel to display after the user clicks on the "login" button on the welcome panel. It displays the welcome card just fine, but when I get to the validateLogin method(which is activated when the login button is press, and upon successful login it should show the home panel within cards) it simply stays on the

I'm trying to draw something on a Canvas, add it to a JFrame and then set this JFrame to Fullscreen. My problem is: in fullscreenmode I only see a black screen. Before the screen turns black I shortly can see the pink background of the canvas. Drawing directly on a JFrame and then setting it to fullscreen works perfectly fine and I can see the testtext. I assume there is a problem with displaying the Canvas properly. Here is my code: public class FullscreenTest extends Canvas { private JFrame mainFrame; public FullscreenTest(){ this.mainFrame = new JFrame(); JPanel contentPane = (JPanel)

I need my JFrame to display itself within the dimensions of my screen and it should display the frame with the message then disappear for 1 second then reappear 50 times here's my code so far: import javax.swing.*; import java.awt.*; import java.util.*; public class OurMain { public static void main(String[] args) { Dimension sSize = Toolkit.getDefaultToolkit().getScreenSize(); int w = sSize.width; int h = sSize.height; Random rand = new Random(); int z = rand.nextInt(sSize.width); int c = rand.nextInt(sSize.height); int x = (int)((Math.random()* w) - z); int y = (int)((Math.random()* h) - 100

I'm using NetBeans 7.1 to code in Java. I have already created a JFrame filled with some labels, textbox and buttons . How can I do to import some image (JPG,PNG,etc...) from my PC into the same JFrame ? On an specific location of the frame. Open the form in NetBeans form editor. Add a JLabel from the pallete to the form Select the label you just added and click the "..." button next to the icon property Fill out the properties. It's normally best that the images reside within the project folder, makes deployment easier in the long run. Copy Image to your Netbeans project. Add new label to the

I want to ask how can i change the character in the password field that was the point I want to replace with a star ??? i'm using Jframe, Java nukebauer PasswordTextField.setEchoChar('*'); 来源： https://stackoverflow.com/questions/13390247/replacing-the-dot-character-in-the-password-field-jframe-java