文字控件事件： JTextArea : 多行输入控件 « Swing « Java 教程

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Java

Java 教程 » Swing » 多行输入控件

14. 16. 6. 文字控件事件： 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. 多行输入控件
	14. 16. 1.	JTextArea ：多行输入。
	14. 16. 2.	设置JTextArea线折行和折行风格
	14. 16. 3.	使用JTextArea
	14. 16. 4.	设置字体本土化到JTextArea
	14. 16. 5.	日文您好！
	14. 16. 6.	文字控件事件： JTextArea
	14. 16. 7.	复制选中的文字从一个区到另一个文本
	14. 16. 8.	修改文字JTextArea组件
	14. 16. 9.	插入一些文字到第五个字符
	14. 16. 10.	附加一些文字JTextArea
	14. 16. 11.	替换第3个字符
	14. 16. 12.	删除第5个字符
	14. 16. 13.	列举行JTextArea组件
	14. 16. 14.	设置标签大小JTextArea组件
	14. 16. 15.	焦点， TAB键在JTextArea组件
	14. 16. 16.	自定义JTextArea外观
	14. 16. 17.	Highlight of discontinous string
	14. 16. 18.	在JTextArea设置文本拖放
	14. 16. 19.	列举的内容元素与ElementIterator

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