How do I find the title of a textbox whose border is "Titled Border"?

Question

I can set the title for a titled border for a JTextField c easily enough.

   c.setBorder(BorderFactory.createTitledBorder(title));

The documentation says to use getTitle() to find the contents of the title, but I can't find any example or working combination of what seems natural. None of the below will even compile:

   c.getBorder().getTitle();

   c.getTitle();

   Border b = null;
...
   b = BorderFactory.createTitledBorder(new LineBorder(BLACK, 2),title);
   c.setBorder(b);
   b = c.getBorder();
   b.getTitle();

How do I get the String contents of the title of a JTextField whose border type is createTitledBorder ?

Answer 1

The border type is not createTitledBorder. That is just the name of the static factory method you are using. It returns a TitledBorder. Calling getBorder() on the JTextField only returns a border of type Border, which does not have the getTitle() method, since not all borders have titles.

You need to have a reference to the border that is of type TitledBorder so that Java knows that the border has a title:

TitledBorder b = null;
...
b = BorderFactory.createTitledBorder(new LineBorder(BLACK, 2),title);
c.setBorder(b);
b = (TitledBorder)c.getBorder();
b.getTitle();

or, if you don't want to keep a reference of type TitledBorder, you could do this:

Border b = null;
...
b = BorderFactory.createTitledBorder(new LineBorder(BLACK, 2),title);
c.setBorder(b);
b = c.getBorder();
( (TitledBorder)b ).getTitle();

---

EDIT
Here is a less verbose way of doing what you have done in your posted answer:

Border b;
String title;

b = c.getBorder();
if(b instanceof TitledBorder)
{
    title = ( (TitledBorder)b ).getTitle();
}

Answer 2

Try something like

TitledBorder border = BorderFactory.createTitledBorder("Title");
c.setBorder(border);

You could then call the getTitle method using something like

System.out.println(border.getTitle());

Answer 3

This worked:

Border b;
TitledBorder tb;
String title;

    b = c.getBorder();
    if(b instanceof TitledBorder)
    {
      c.getBorder();
      tb = (TitledBorder)c.getBorder();
      title = tb.getTitle();
    }

No matter what type of border c has, IF it's TitledBorder, I get the title as advertised. If not, proceed as usual.

Thanks, gla3dr, for the tip.

Does anyone see a less verbose way of accomplishing the task?