Is there a way to add functionality that would enable a user to type into a JTextField but the cursor stays at the beginning of the input, thus making the text backward?
Example:
User types '5'
5 is displayed
User types '9'
95 is displayed
If you need this to happen only with numbers, I suggest you to use a JSpinner
component instead of a JTextField
. But with textField you can achieve it like this:
JTextField field = new JTextField();
AbstractDocument document = (AbstractDocument) field.getDocument();
document.setDocumentFilter(new DocumentFilter() {
@Override
public void insertString(FilterBypass fb, int offset, String string, AttributeSet attr)
throws BadLocationException {
offset = 0;//Insert string at offset 0
super.insertString(fb, offset, string, attr);
}
@Override
public void replace(FilterBypass fb, int offset, int length, String text, AttributeSet attrs)
throws BadLocationException {
offset = 0; //Insert string at offset 0
super.replace(fb, offset, length, text, attrs);
}
});
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