Length « JTextField « Java Swing Q&A

1. How can I get the length of a JTextField's contents as the user types? stackoverflow.com

JTextField has a keyTyped event but it seems that at the time it fires the contents of the cell have not yet changed. Because of that .length() is always wrong if read ...

2. How to LIMIT the text box length? stackoverflow.com

I am working on eclipse java using swt jface with rcp. How can i limit the characters in my text box. Like if i want only 4 characters in my text box ...

3. how do i limit the length of the input i want inside a Jtextfield? stackoverflow.com

    username = new JTextField("");
    username.setBounds(330, 550, 230, 30);
    username.addActionListener(this);
    username.requestFocus(); // sets focus on JTextField
    ...

4. JTextField length restriction... coderanch.com

5. set the max length of a JTextField coderanch.com

6. Why can't I get tooltip to show up when text in JTextField certain length? coderanch.com

7. Difference between using Document Filter and Plaint Document as input limit length in JTextField?? coderanch.com

8. length of a jtextfield coderanch.com

9. Problem With Making The Maximum Length Of JTextField? forums.oracle.com

Pretty good. You're on the right track. But there's a minor flaw in your code which checks whether the user is making a valid change to the field. Here's an example of where it doesn't quite work (I think): 1. Start with the text field empty. 2. In another document (use Notepad or whatever you like), type the string "13". Just ...