Using Actions with Text Components: JTextArea : JTextArea « Swing « Java Tutorial

1. Java Tutorial
2. Swing
3. JTextArea

import java.util.Arrays;
import java.util.Comparator;

import javax.swing.Action;
import javax.swing.JTextArea;
import javax.swing.text.JTextComponent;

public class ListActionsJTextArea {
  public static void main(String args[]) {
    JTextComponent component = new JTextArea();

    // Process action list
    Action actions[] = component.getActions();
    // Define comparator to sort actions
    Comparator<Action> comparator = new Comparator<Action>() {
      public int compare(Action a1, Action a2) {
        String firstName = (String) a1.getValue(Action.NAME);
        String secondName = (String) a2.getValue(Action.NAME);
        return firstName.compareTo(secondName);
      }
    };
    Arrays.sort(actions, comparator);

    int count = actions.length;
    System.out.println("Count: " + count);
    for (int i = 0; i < count; i++) {
      System.out.printf("%28s : %s\n",actions[i].getValue(Action.NAME),actions[i].getClass().getName());
    }
  }
}

Count: 53
                        beep : javax.swing.text.DefaultEditorKit$BeepAction
              caret-backward : javax.swing.text.DefaultEditorKit$NextVisualPositionAction
                 caret-begin : javax.swing.text.DefaultEditorKit$BeginAction
            caret-begin-line : javax.swing.text.DefaultEditorKit$BeginLineAction
       caret-begin-paragraph : javax.swing.text.DefaultEditorKit$BeginParagraphAction
            caret-begin-word : javax.swing.text.DefaultEditorKit$BeginWordAction
                  caret-down : javax.swing.text.DefaultEditorKit$NextVisualPositionAction
                   caret-end : javax.swing.text.DefaultEditorKit$EndAction
              caret-end-line : javax.swing.text.DefaultEditorKit$EndLineAction
         caret-end-paragraph : javax.swing.text.DefaultEditorKit$EndParagraphAction
              caret-end-word : javax.swing.text.DefaultEditorKit$EndWordAction
               caret-forward : javax.swing.text.DefaultEditorKit$NextVisualPositionAction
             caret-next-word : javax.swing.text.DefaultEditorKit$NextWordAction
         caret-previous-word : javax.swing.text.DefaultEditorKit$PreviousWordAction
                    caret-up : javax.swing.text.DefaultEditorKit$NextVisualPositionAction
           copy-to-clipboard : javax.swing.text.DefaultEditorKit$CopyAction
            cut-to-clipboard : javax.swing.text.DefaultEditorKit$CutAction
               default-typed : javax.swing.text.DefaultEditorKit$DefaultKeyTypedAction
                 delete-next : javax.swing.text.DefaultEditorKit$DeleteNextCharAction
             delete-previous : javax.swing.text.DefaultEditorKit$DeletePrevCharAction
                  dump-model : javax.swing.text.DefaultEditorKit$DumpModelAction
                insert-break : javax.swing.text.DefaultEditorKit$InsertBreakAction
              insert-content : javax.swing.text.DefaultEditorKit$InsertContentAction
                  insert-tab : javax.swing.text.DefaultEditorKit$InsertTabAction
                   page-down : javax.swing.text.DefaultEditorKit$VerticalPageAction
                     page-up : javax.swing.text.DefaultEditorKit$VerticalPageAction
        paste-from-clipboard : javax.swing.text.DefaultEditorKit$PasteAction
                  select-all : javax.swing.text.DefaultEditorKit$SelectAllAction
                 select-line : javax.swing.text.DefaultEditorKit$SelectLineAction
            select-paragraph : javax.swing.text.DefaultEditorKit$SelectParagraphAction
                 select-word : javax.swing.text.DefaultEditorKit$SelectWordAction
          selection-backward : javax.swing.text.DefaultEditorKit$NextVisualPositionAction
             selection-begin : javax.swing.text.DefaultEditorKit$BeginAction
        selection-begin-line : javax.swing.text.DefaultEditorKit$BeginLineAction
   selection-begin-paragraph : javax.swing.text.DefaultEditorKit$BeginParagraphAction
        selection-begin-word : javax.swing.text.DefaultEditorKit$BeginWordAction
              selection-down : javax.swing.text.DefaultEditorKit$NextVisualPositionAction
               selection-end : javax.swing.text.DefaultEditorKit$EndAction
          selection-end-line : javax.swing.text.DefaultEditorKit$EndLineAction
     selection-end-paragraph : javax.swing.text.DefaultEditorKit$EndParagraphAction
          selection-end-word : javax.swing.text.DefaultEditorKit$EndWordAction
           selection-forward : javax.swing.text.DefaultEditorKit$NextVisualPositionAction
         selection-next-word : javax.swing.text.DefaultEditorKit$NextWordAction
         selection-page-down : javax.swing.text.DefaultEditorKit$VerticalPageAction
         selection-page-left : javax.swing.text.DefaultEditorKit$PageAction
        selection-page-right : javax.swing.text.DefaultEditorKit$PageAction
           selection-page-up : javax.swing.text.DefaultEditorKit$VerticalPageAction
     selection-previous-word : javax.swing.text.DefaultEditorKit$PreviousWordAction
                selection-up : javax.swing.text.DefaultEditorKit$NextVisualPositionAction
               set-read-only : javax.swing.text.DefaultEditorKit$ReadOnlyAction
                set-writable : javax.swing.text.DefaultEditorKit$WritableAction
 toggle-componentOrientation : javax.swing.text.DefaultEditorKit$ToggleComponentOrientationAction
                    unselect : javax.swing.text.DefaultEditorKit$UnselectAction

14.16.JTextArea
	14.16.1.	JTextArea: for multiple-line input.
	14.16.2.	Setting JTextArea Line Wrap and Wrap Style
	14.16.3.	Using JTextArea
	14.16.4.	Set font for I18N to JTextArea
	14.16.5.	Hello in Japanese
	14.16.6.	Using Actions with Text Components: JTextArea
	14.16.7.	Copy selected text from one text area to another
	14.16.8.	Modifying Text in a JTextArea Component
	14.16.9.	Insert some text after the 5th character
	14.16.10.	Append some text to JTextArea
	14.16.11.	Replace the first 3 characters with some text
	14.16.12.	Delete the first 5 characters
	14.16.13.	Enumerating the Lines in a JTextArea Component
	14.16.14.	Setting the Tab Size of a JTextArea Component
	14.16.15.	Moving the Focus with the TAB Key in a JTextArea Component
	14.16.16.	Customizing a JTextArea Look and Feel
	14.16.17.	Highlight of discontinous string
	14.16.18.	Setting text drag in a JTextArea
	14.16.19.	Enumerate the content elements with a ElementIterator