22.10 GridBagLayout Layout Manager
One of the most powerful predefined layout managers is GridBagLayout (in package java.awt). This layout is similar to GridLayout in that it arranges components in a grid, but it’s more flexible. The components can vary in size (i.e., they can occupy multiple rows and columns) and can be added in any order.
The first step in using GridBagLayout is determining the appearance of the GUI. For this step you need only a piece of paper. Draw the GUI, then draw a grid over it, dividing the components into rows and columns. The initial row and column numbers should be 0, so that the GridBagLayout layout manager can use the row and column numbers to properly place the components in the grid. Figure 22.18 demonstrates ...
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