Java Reference
In-Depth Information
public void valueChanged(ListSelectionEvent e)
{
displayPicJL.setIcon(
pictures[pictureJList.getSelectedIndex()]);
infoJL.setText(
pictureNames[pictureJList.getSelectedIndex()]);
repaint();
}
}
Sample Run: Figure 12-18 shows a sample run of the JListPictureViewer program.
FIGURE 12-18 Sample run of the JListPictureViewer program
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Layout Managers
In earlier chapters, you saw two layout managers: GridLayout and null . For
GridLayout , you specify the number of rows and columns you want, and you can place
your components from left to right, row-by-row, or from top to bottom. If you choose
the null layout, you have to specify the size and location of each component. Java
provides many layout managers; this section briefly introduces two more.
 
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