jbutton

问题 I have an application that is currently using over 200 buttons, each of which returns the String of their variable name. Is there any way to do this? Setting the name property for each of these would be far too time consuming. 回答1: Use a collection of buttons: ActionListener theActionListener = new ActionListener() { @Override public void actionPerformed(ActionEvent e) { System.out.println(((JButton) e.getSource()).getName()); } }; List<JButton> buttons = new ArrayList<JButton>(); for (int i

问题 I have an application that is currently using over 200 buttons, each of which returns the String of their variable name. Is there any way to do this? Setting the name property for each of these would be far too time consuming. 回答1: Use a collection of buttons: ActionListener theActionListener = new ActionListener() { @Override public void actionPerformed(ActionEvent e) { System.out.println(((JButton) e.getSource()).getName()); } }; List<JButton> buttons = new ArrayList<JButton>(); for (int i

问题 I'm trying to increase the distance of my JButtons from the top of my Panel to make it more visually appealing, i've tried using an invisible button but have had no luck. public class SimpleBorder { public static void main(String[] args) { JFrame frame = new JFrame(); frame.setSize(500,500); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); Border etched = (Border) BorderFactory.createEtchedBorder(); String[] items = {"A", "B", "C", "D"}; JList list = new JList(items); JTextArea text =

问题 I've been struggling to set a specific size to a button inserted into a JPanel with a GridLayout. The button always fills up the whole panel, whereas if I remove the gridlayout, the button won't have the same behavior. any hints? package panels; import java.awt.BorderLayout; import java.awt.Color; import java.awt.Dimension; import java.awt.Font; import java.awt.GridLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.JButton; import javax.swing

问题 i am starting with JPanel and i am trying to put 2 simple buttons on a frame, i was able to put the buttons but not position them, here is my code: JFrame frame = new JFrame(); frame.setSize(500,500); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); JButton but = new JButton("text"); JButton but2 = new JButton("list"); JPanel panel= new JPanel(new GridLayout(1, 2)); panel.setSize(100, 100); panel.add(but); panel.add(but2); frame.add(panel); frame.setVisible(true); and here is a sketch of

问题 I want to change the border color of a JButton component in Java Swing. I have tried the following: package com.example.test; import java.awt.Color; import java.util.logging.Level; import java.util.logging.Logger; import javax.swing.BorderFactory; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.UIManager; import javax.swing.UnsupportedLookAndFeelException; public class Test extends JFrame { public Test() { JPanel panel = new JPanel();

问题 I want to have 2 buttons on my application with a transparent background and I "almost" done it. This is what I've done : public class PanelMenu extends JPanel{ //VARIABLES private JButton buttonFightSimulator, buttonMatchUp; //CONSTRUCTORS public PanelMenu () { this.setBounds(0,0,240,768); this.setLayout(new FlowLayout(0, 0, 0)); //BUTTON CREATION buttonFightSimulator = new JButton("FIGHT SIMULATOR"); buttonMatchUp = new JButton("MATCH UP"); buttonFightSimulator.setBackground(new Color(255

问题 I want to create an array of JButtons with the GUI Builder (not actually writing the code, but drawing it). I can only figure out how to change the name of the element, not add it to an array. Thanks. 回答1: http://wiki.netbeans.org/FaqGuiControlArray 回答2: I think you'll find doing much "programmatically" will go beyond most GUI builders, other than for specific programmed-for exceptions. 来源： https://stackoverflow.com/questions/746325/create-an-array-of-jbuttons-with-the-netbeans-6-5-gui

问题 I want to create an array of JButtons with the GUI Builder (not actually writing the code, but drawing it). I can only figure out how to change the name of the element, not add it to an array. Thanks. 回答1: http://wiki.netbeans.org/FaqGuiControlArray 回答2: I think you'll find doing much "programmatically" will go beyond most GUI builders, other than for specific programmed-for exceptions. 来源： https://stackoverflow.com/questions/746325/create-an-array-of-jbuttons-with-the-netbeans-6-5-gui

问题 Is it possible to overlay a Button over a Label in Swing? For example, if have a JLabel with image and no text, and i want to overlay my button over this JLabel. Label is defined something like: myLabel = new javax.swing.JLabel(new ImageIcon( myPicture )); If not, then any ideas how can i realize this, thank you. EDIT: Actually i read about adding JPanel to a JLabel, when i add a Panel with button layout, it compiles fine but nothing is visible, just the JLabel with image UPDATE: As suggested