How do you set a focus on Textfield in Swing?

Question

I have created one form using Swing in Java.In the form I have used one textfield on which I have to set the focus whenever I press the key.How to set focus on a particular

Answer 1

Now that we've searched the API all we need to do is read the API.

According to the API documentation:

"Because the focus behavior of this method is platform-dependent, developers are strongly encouraged to use requestFocusInWindow when possible. "