JTextField and JTextArea

Question

What is the different between JTextField and JTextArea? Is this possible to work with this two classes in a one class?

Answer 1

In summary, a JTextField is a one-line text field, whereas a JTextArea can span over multiple lines.

The differences are clearly explained in the documentation: JTextArea and JTextField

Of course, you can use them in the same class. There would be zero conflicts between them.