Enforce max characters on Swing JTextArea with a few curve balls

Question

I\'m trying to add functionality to a Swing JLabel and JTextArea such that:

• The user is only allowed to enter 500 characters into the textarea (max)
• T

Answer 1

To add on to what Ray S. Kan said:

There is an easier way to limit the characters for a JTextArea without having to use a DocumentFilter as shown by Ray S. Kan, but the issue with his answer is that it does not prevent someone from pasting in a long text. The following will prevent a user from pasting in stuff to bypass the limit:

@Override
public void keyTyped(KeyEvent e) {
    int max = 25;
    if(text.getText().length() > max+1) {
        e.consume();
        String shortened = text.getText().substring(0, max);
        text.setText(shortened);
    }else if(text.getText().length() > max) {
        e.consume();
    }
}

This will stop a key from being pressed if the length is not pass max, but if it passes max, it will simply replace the string in the text area with a shorter string. The text variable is the JTextArea swing object.