Java Utililty Methods JFrame

List of utility methods to do JFrame

  1. HOME
  2. Java
  3. J
  4. JFrame

Description

The list of methods to do JFrame are organized into topic(s).

Method

ActionListenernewExitActionListener(final JFrame jFrame)
new Exit Action Listener 
return e -> {
    switch (JOptionPane.showConfirmDialog(jFrame, "Are you sure you want to quit?")) {
    case JOptionPane.OK_OPTION:
        System.exit(0);
        break;
    default:
        break;
};
JFramenewJFrame(Component c, String title, int w, int h)
new J Frame 
JFrame f = new JFrame(title);
f.getContentPane().add(c, BorderLayout.CENTER);
f.setSize(w, h);
f.pack();
return f;
JDialognewModalDialog(JFrame owner, String title, JPanel content, JButton... buttons)
Builds a standard modal input dialog, with content and buttons to accept or cancel that content. 
java.awt.GridBagConstraints gridBagConstraints;
int i = 0;
for (JButton b : buttons) {
    i++;
    b.setPreferredSize(new java.awt.Dimension(100, 24));
    gridBagConstraints = new java.awt.GridBagConstraints();
    gridBagConstraints.gridx = (i + 2);
    gridBagConstraints.anchor = java.awt.GridBagConstraints.LINE_END;
...
intoptionDialog(String title, String text, String option1, String option2, int defaultOption, JFrame parentFrame)
option Dialog 
if (defaultOption < 1)
    defaultOption = 1;
if (defaultOption > 2)
    defaultOption = 2;
Object[] options = { option1, option2 };
int n = JOptionPane.showOptionDialog(parentFrame, text, title, JOptionPane.YES_NO_CANCEL_OPTION,
        JOptionPane.QUESTION_MESSAGE, null, options, options[defaultOption - 1]);
n = n + 1;
...
voidpackFrame(JFrame frame)
pack Frame 
frame.pack();
voidpackJFrameWindow(final JComponent comp)
i seperated it in different method to avoid affecting other components. 
if (comp.getRootPane() != null) {
    final Container cont = comp.getRootPane().getParent();
    if (cont instanceof JFrame) {
        ((JFrame) cont).pack();
        ((JFrame) cont).setLocationRelativeTo(null);
voidPOPUP(JFrame frame, String message)
POPUP 
JOptionPane.showMessageDialog(frame, message);
voidpopupError(JFrame parent, String title, String text)
Popup an Error message dialog 
JOptionPane.showMessageDialog(parent, text, title, JOptionPane.ERROR_MESSAGE);
voidposition(JFrame f)
Centers a JFrame so that its position is in the center of the window. 
f.setLocationRelativeTo(frame);
voidputOnWidestScreen(JFrame frame)
put On Widest Screen 
GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
GraphicsDevice[] gs = ge.getScreenDevices();
int widestGD = -1;
int widestGC = -1;
double widestSize = 0;
for (int j = 0; j < gs.length; j++) {
    GraphicsDevice gd = gs[j];
    GraphicsConfiguration[] gcs = gd.getConfigurations();
...