... the grid. An anchor value is not specified in constraints, so the default CENTER is used. We do not use variable anchor in this application, so all the components will use the default. Line 40 calls our utility method addComponent (declared at lines 69–78). The JTextArea object, the row, the column, the number of columns to span and the number of rows to span are passed as arguments.
JButton button1
JButton button1 is the next component added (lines 43–44). By default, the weightx and weighty values are still zero. The fill variable is set to HORIZONTAL—the component will always fill its area in the horizontal direction. The vertical direction is not filled. The weighty value is zero, so the button will become taller only if another component in ...
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