如何为所有 JTextFields 添加相同的 KeyTypedEvent

Question

I have multiple textfields in my GUI, but all of them should only accept numbers, I created this following event for one of them, but how could I apply it to all TextFields?

private void jtf1KeyTyped(java.awt.event.KeyEvent evt) {                                        
    char c = evt.getKeyChar();

    if (Character.isDigit(c)) {
    } else {
        evt.consume();
    }
}    

Answer 1

I have multiple textfields in my GUI, but all of them should only accept numbers, I created this following event for one of them, but how could I apply it to all TextFields?

private void jtf1KeyTyped(java.awt.event.KeyEvent evt) {                                        
    char c = evt.getKeyChar();

    if (Character.isDigit(c)) {
    } else {
        evt.consume();
    }
}