Java Swing Tutorial - Java JList .getPreferred Scrollable ViewportSize ()








Syntax

JList.getPreferredScrollableViewportSize() has the following syntax.

public Dimension getPreferredScrollableViewportSize()

Example

In the following code shows how to use JList.getPreferredScrollableViewportSize() method.

import java.awt.BorderLayout;
import java.awt.Dimension;
/*from  w ww  . j  av a2 s . c om*/
import javax.swing.JFrame;
import javax.swing.JList;
import javax.swing.JScrollPane;

public class Main {

  public static void main(final String args[]) {
    String labels[] = { "A", "B", "C", "D", "E" };
    JFrame frame = new JFrame("Sizing Samples");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    JList jlist1 = new JList();
    jlist1.setListData(labels);
    
    jlist1.setVisibleRowCount(4);
    JScrollPane scrollPane1 = new JScrollPane(jlist1);
    frame.add(scrollPane1, BorderLayout.NORTH);
    
    Dimension m = jlist1.getPreferredScrollableViewportSize();
    
    frame.setSize(300, 350);
    frame.setVisible(true);
  }
}