Set the zoom state

Listing 8 calls that actionPerformed method

Will leave it as an exercise for the student to investigate the other parameters.

Listing 8. Set the zoom state. 
          //Simulate an action event on the zoom menu to
          // set the zoom.
          explorer.actionPerformed(new ActionEvent(
                             explorer,
                             ActionEvent.ACTION_PERFORMED,
                             zoomString));


        }//end actionPerformed
      }//end newActionListener
    );//end addActionListener
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