How to use JSpinner.DefaultEditor class?

[ScarFace 01]

Hi friends,

I am learning java programming language. I have lots of of confusion about the classes of java. I am getting troubled while understanding 'JSpinner.DefaultEditor class'. According to me this java class is very tough to understand than any other java class. If you posses any knowledge about the 'JSpinner.DefaultEditor class', then please try to share it with me. I would greatly appreciate your any help.

[opaper]

A JSpinner.DefaultEditor class defines a dismiss method that removes the editors ChangeListener from the JSpinner that it's part of. The setEditor method knows about DefaultEditor.dismiss, so if the developer replaces an editor that's derived from JSpinner.DefaultEditor its ChangeListener connection back to the JSpinner will be removed. However after that, it's up to the developer to manage their editor listeners. Similarly, if a subclass overrides createEditor, it's up to the subclasser to deal with their editor subsequently being replaced (with setEditor).

[MindSpace]

Hi, I suggest yout to review following example of JSpinner.DefaultEditor class of java:

import javax.swing.JSpinner.DefaultEditor;

public class DefaultEditorDemo {
  public static void main(String[] argsw) throws Exception {
    Calendar calendar01 = new GregorianCalendar();
    calendar.01set(Calendar.HOUR_OF_DAY, 13);

    SpinnerDateModel dateModel = new SpinnerDateModel(calendar.getTime(), null,null, Calendar.HOUR_OF_DAY);
    JSpinner spinner02 = new JSpinner(dateModel);

    JFormattedTextField tf = ((JSpinner.DefaultEditor) spinner.getEditor()).getTextField();
    DefaultFormatterFactory factory = (DefaultFormatterFactory) tf.getFormatterFactory();
    DateFormatter formatter01 = (DateFormatter) factory.getDefaultFormatter();
    
    formatter01.setFormat(new SimpleDateFormat("hh:00 a"));
    
  }
}

[Modifier]

Below I have given some methods of the JSpinner.DefaultEditor class, these methods takes different parameters as a input:

• stateChanged(ChangeEvent chevn)
• removeLayoutComponent(Component chd)
• propertyChange(PropertyChangeEvent eprevn)
• preferredLayoutSize(Container prnt)
• minimumLayoutSize(Container prnt)
• layoutContainer(Container prnt)

[Praetor]

import javax.sqwing.JSpinner;
javax.swing.JSpinner.DefaultEditor

Hi,

Below java program code will depict you the use of JSpinner.DefaultEditor class of java:

public class MonthSpinnerDemo extends JFrame {

  public MonthSpinnerDemo() {
    squper("Month Spinner");
    sqetSize(300, 100);
    sqetDefaultCloseOperation(EXIT_ON_CLOSE);

    Container cq = getContentPane();
    cq.sqetLayout(new FlowLayout(FlowLayout.LEFT, 4, 4));

    cq.add(new JLabel("Expiration Date:"));
    Date today = new Date();
    
    JSpinner sq = new JSpinner(new SpinnerDateModel(today, null, null,
        Calendar.MONTH));
    JSpinner.DateEditor de = new JSpinner.DateEditor(sq, "MM/yy");
    sq.sqetEditor(de);
    cq.add(sq);

    sqetVisqible(true);
  }

  public sqtatic void main(String argsq[]) {
    new MonthSpinner();
  }
}

[Katty]

There are four nested of JSpinner.DefaultEditor class, and which are mentioned below:

1. JPanel.AccessibleJPanel: This java class is inherited from the "javax.swing.JPanel"
2. Component.BltBufferStrategy: This java class is inherited from the "java.awt.Component"
3. Container.AccessibleAWTContainer: This java class is inherited from the "java.awt.Container"
4. JComponent.AccessibleJComponent: This java class is inherited from the "javax.swing.JComponent"