Java How to Program, Early Objects, 11th Edition

... container to which other components are attached. The components placed in the NORTH and SOUTH regions extend horizontally to the sides of the container and are as tall as the components placed in those regions. The EAST and WEST regions expand vertically between the NORTH and SOUTH regions and are as wide as the components placed in those regions. The component placed in the CENTER region expands to fill all remaining space in the layout (which is the reason the JTextArea in Fig. 26.37 occupies the entire window). If all five regions are occupied, the entire container’s space is covered by GUI components. If the NORTH or SOUTH region is not occupied, the GUI components in the EAST, CENTER and WEST regions expand vertically to fill the remaining ...