jbutton

问题 so I have this JButtons to which I add Icons. The Icons are too large initially, so I resize them beforehand, and it works fine. Except that when I resize the window, the JButtons change size, but not the Icons, which is problematic. Is there a way to have an Icon just fill the JButton it is attached to? Bit of code to make it clearer: public JewelClass(){ setBackground (new Color (30,30,30)); addActionListener(this); setLayout(new GridLayout()); ImageIcon icon = new ImageIcon(src/carre.jpg);

问题 How to change the STYLE of the Font when clicking on a JButton ? I'm trying to have 3 buttons each change styles to PLAIN or BOLD or ITALIC I've read the font Class API but I there is nothing like setStyle we can only getStyle I find font class in java is quite complicated more than it should :S. 回答1: You would need to call setFont(...) not setStyle. For example, if you want to keep the same font but change the style of a JTextField called "field" you could do something like: field.setFont

问题 I was wondering if anybody knew if it was possible to change the background color on the buttons inside a JOptionPane . I know how to change the entire JOptionPane background using a UIManager , but know what I want is to set the individual okButton, cancelButton, and so on within the JOptionPane to separate individual colors. If I can do this, how would I do this? Thanks for the help. 回答1: There is no direct way to do this. But if you really want to give it a try, then you will need to read

问题 whats the most simple way to make a JButton only show the background color? I don't need any other effects like borders, 3D-look or hover-highlighting. Thanks in advance. 回答1: I don't know if I have missed a point... But I usually do somtehing like this: button.setBorderPainted(false); button.setFocusPainted(false); button.setContentAreaFilled(false); 回答2: Just set the colours and the border: private static JButton createSimpleButton(String text) { JButton button = new JButton(text); button

问题 I have created a swings application and there is a "Start" button on the GUI. I want that whenever I clicked on that "Start" button, the start button should be disabled and the "Stop" button be enabled. For that I have written the following code in the "ActionPeformed(...)" method of the "Start" button startButton.setEnabled(false); stopButton.setEnabled(true); But the above code is not creating the desired affect on the GUI. Is the above code correct for what I want to do? It's not working

问题 I a swing application in which i have a table inside it i'm putting a panel that can contain a button.The code is follow public class MyCellDataRenderer implements TableCellRenderer, TableCellEditor { @Override public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) { MyCellData myCellData = (MyCellData) table.getValueAt(row, column); JPanel panel = GridBagHelper.createPanel(); if (myCellData.isATableHeader()) {

问题 Icon icon = new ImageIcon(getClass().getResource( "/img/icon.gif" ) ); aButton = new JButton("Its a button", icon); Is there some kind of method that can stop an animated from playing? I was thinking of assigning a static jpg of the gif, then when I hover, assign the animated gif, but I don't think there is an event for taking off mouse in MouseMotionListener so I can load back the static jpg. The gif loops in the button, however, if I hover over it, it disappears. How can I make the gif

问题 Icon icon = new ImageIcon(getClass().getResource( "/img/icon.gif" ) ); aButton = new JButton("Its a button", icon); Is there some kind of method that can stop an animated from playing? I was thinking of assigning a static jpg of the gif, then when I hover, assign the animated gif, but I don't think there is an event for taking off mouse in MouseMotionListener so I can load back the static jpg. The gif loops in the button, however, if I hover over it, it disappears. How can I make the gif

问题 I want to create rounded JButton in Java... For that I use rounded image and placed that image on button but I didn't get rounded button.. please any one can tell how to create rounded button in Java like show in below figure.. thanks in advance..... 回答1: If you're just going to use an image of a round button, then why not just use a JLabel ? That is, simply invoke setIcon(...), passing your BufferedImage instance as an argument. CODE public final class RoundedButtonDemo { private static

问题 I want to count the number of times the button is clicked using GUI. I did this code: private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) { int clicked = 0; clicked++; System.out.println(clicked); } But it showing the output "1", each time I click the button. I want every time I click the button to show me the count. ex: If I click the button two times it should give me output of "2". 回答1: You are resetting the counter every time you click, because you have defined the