use of setLabelFor()

[mani senthil]

What is the use of setLabelFor() property of jlabel. what is the purpose? i red the definition but i con't understand that.

The code is like

static String[] names = {"Arlo", "Cosmo", "Elmo", "Hugo","Jethro", "Laszlo", "Milo", "Nemo", "Otto", "Ringo", "Rocco", "Rollo"};
JLabel intro = new JLabel("The chosen name:");
final JLabel name = new JLabel(names[1]);
intro.setLabelFor(name);

[Maneesh Godbole]

Imagine a login dialog. You got a label saying "Username" and a text field where the user should input the username.
You would typically use the JLabel#setDisplayedMnemonic to define say 'U'. Then you would use JLabel#setLabelFor(userNameField).
After this, when the user hits Alt+U, the user name text field would gain the focus.

[pete stein]

So you normally wouldn't use a JLabel as the parameter (argument?) of this method as it is not something that usually wants to gain focus.