To control the cursor in JTextField

Question

Hi,
I am Meena.
To control my jTextField(accept only 10 charecters),Now I am using InputVerifier.
If I enter less than 10 charecters,I can go to next TextField.
If I enter more than 10 charecters I cannot go to next TextField.
I did this by Verify() method.
But what my need is myTextField should not accept more than 10 charectors,If I try to enter 11th charecter the cursor should not move.
Is it possible?
will you please help me?.
Thank you so much.
Meena.

Answer 1

But what my need is myTextField should not accept more than 10
charectors,If I try to enter 11th charecter the cursor should not move.here's a simple example, setting the textfield's document.
DocumentFilter is the newer way,
but I'm comfortable with just Document (old dog, new tricks)
import java.awt.*;
import javax.swing.*;
import javax.swing.text.*;
class Testing extends JFrame
  public Testing()
    setLocation(400,300);
    setDefaultCloseOperation(EXIT_ON_CLOSE);
    JTextField tf = new JTextField(new CharacterLimiter(10),"",10);
    JPanel p = new JPanel();
    p.add(tf);
    getContentPane().add(p);
    pack();
  public static void main(String[] args){new Testing().setVisible(true);}
class CharacterLimiter extends PlainDocument
  int maxChar = -1;
  public CharacterLimiter(int len){maxChar = len;}
  public void insertString(int offs, String str, AttributeSet a) throws BadLocationException
    if (str != null && maxChar > 0 && this.getLength() + str.length() > maxChar)
      java.awt.Toolkit.getDefaultToolkit().beep();
      return;
    super.insertString(offs, str, a);
}