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How to select the first column in a JTable with Java?
To select the first column in a JTable, use the setColumnSelectionInterval() method. Here, set the indexes as interval for one end as well as other end.
For the first column, set the range as 0 and 0 since we want to only select the first column with index 0 −
table.setColumnSelectionInterval(0, 0);
The following is an example to select the first column in a JTable −
Example
package my;
import java.awt.Color;
import javax.swing.BorderFactory;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.ListSelectionModel;
import javax.swing.border.TitledBorder;
public class SwingDemo {
public static void main(String[] args) {
JFrame frame = new JFrame();
JPanel panel = new JPanel();
panel.setBorder(BorderFactory.createTitledBorder(
BorderFactory.createEtchedBorder(), "ODI Rankings", TitledBorder.CENTER, TitledBorder.TOP));
String[][] rec = {
{ "1", "Steve", "AUS" },
{ "2", "Virat", "IND" },
{ "3", "Kane", "NZ" },
{ "4", "David", "AUS" },
{ "5", "Ben", "ENG" },
{ "6", "Eion", "ENG" },
};
String[] header = { "Rank", "Player", "Country" };
JTable table = new JTable(rec, header);
table.setShowHorizontalLines(true);
table.setGridColor(Color.orange);
table.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);
table.setColumnSelectionAllowed(true);
table.setRowSelectionAllowed(false);
table.setColumnSelectionInterval(0, 0);
panel.add(new JScrollPane(table));
frame.add(panel);
frame.setSize(550, 400);
frame.setVisible(true);
}
}The output is as follows. Now the first column is selected by default −
Updated on: 30-Jul-2019
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