JTextField Max Length : TextField « Swing JFC « Java

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Java » Swing JFC » TextField Screenshots  JTextField Max Length     import javax.swing.JTextField; import javax.swing.text.AttributeSet; import javax.swing.text.BadLocationException; import javax.swing.text.PlainDocument; public class JTextFieldMaxLength extends JTextField{   public JTextFieldMaxLength(int length){     this(null,length);   }   public JTextFieldMaxLength(String text, int length){     super(new PlainDocumentMaxLength(length),text,length);   } } class PlainDocumentMaxLength extends PlainDocument{   private int maxLength;   public PlainDocumentMaxLength(int maxLength) {     this.maxLength = maxLength;   }   public void insertString (int offset, String str, AttributeSet a)     throws BadLocationException { if (getLength() + str.length() > maxLength) {      // Toolkit.getDefaultToolkit().beep();     }else{     super.insertString(offset,str,a);     }   } }                  Related examples in the same category 1.  Make a Text Field two columns wide 2.  Water mark text field 3.  Auto complete TextField 4.  Text fields and Java events 5.  JTextField Alignment Sample 6.  Create the textfield 7.  FieldEdit - an Applet to validate data as it's being entered 8.  TextField with only Integer value 9.  File Name Bean 10.  Textfield only accepts numbers 11.  Overwritable TextField 12.  Numeric TextField 13.  Passive TextField 1 14.  Passive TextField 2 15.  Text Accelerator Example 16.  TextField Look Ahead Example 17.  Passive TextField 3 18.  Non Wrapping(Wrap) TextPane 19.  EditabilityExample 20.  Bounded TextField 21.  TextField Elements 22.  TextFieldViews 2 23.  TextField with Constaints 24.  JTextField Sample 2 25.  JTextField Verifier Sample 26.  A simple label for field form panel 27.  A hack to make a JTextField really 2 columns wide 28.  Limit JTextField input to a maximum length 29.  Make sure that my JTextField has the focus when a JFrame is created 30.  Make the ENTER key act like the TAB key 31.  Setting up a textfield and modifying its horizontal alignment at runtime 32.  Aligning the Text in a JTextField Component 33.  Based on JTextField content, enable or disable a JButton 34.  Cut, paste, and copy in a JTextField under program control. 35.  Add key listener event handler to JTextField 36.  Right justified JTextfield content 37.  Set the focus on a particular JTextField 38.  Associate JLabel component with a JTextField 39.  Right justified JTextField contents 40.  Validate a value on the lostFocus event 41.  Modify horizontal alignment of text field at runtime 42.  Make sure that my Text field has the focus when a JFrame is created 43.  Firing Item Events 44.  extends JTextField to create integer JTextField