Setting the Dimensions of an Item in a JList Component
in Java
In this section, you will learn about setting the dimensions
of the List component in java. A list can have multiple data or items. Here, you will know how
to set data or items in a List Component. This provides setting the dimension of items
present in the list. You can specify the dimension of items present in the list.
Here, the dimension for the items of the list have been
mentioned according to the length of the specified text "Roseindia.net".
The These are shown in the following figure:
Following are the explanation of the used method which is helpful for setting the
dimension of various items of the list:
setPrototypeCellValue(String):
This method sets the dimension of the list
items. This method takes a string as a parameter. According to the length of the
mentioned string, all the list width is arranged properly.
Here is the code of program:
import javax.swing.*;
import java.awt.event.*;
public class DimensionItemList{
public static void main(String[] args) {
DimensionItemList di = new DimensionItemList();
}
public DimensionItemList(){
String name[] = {"Deepak", "Chandan Kumar Verma", "Sushil", "Raju",
"Santosh", "Amar", "Vinod"};
JFrame frame = new JFrame("Setting the Dimensions of an Item in a JList
Component");
JPanel panel = new JPanel();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
DefaultListModel model = new DefaultListModel();
for(int i = 0; i < name.length; i++)
model.addElement(name[i]);
JList list = new JList(model){
public String getToolTipText(MouseEvent e) {
int index = locationToIndex(e.getPoint());
if (-1 < index) {
String item = (String)getModel().getElementAt(index);
return item;
} else {
return null;
}
}
};
list.setPrototypeCellValue("RoseIndia.net");
panel.add(list);
frame.add(panel);
frame.setSize(400,400);
frame.setVisible(true);
}
}
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