False
You do not (can not) use the row and column to tell where to add the components -- add them in starting at the top left and going across the row first.
A JPanel is a subclass of JComponent class and it is an invisible component in Java. The FlowLayout is a default layout for a JPanel. We can add most of the components like buttons, text fields, labels, tables, lists, trees, etc. to a JPanel.