How to set Line Border color and width with Java?

To set Line Border color and width, use the LineBorder. At first, set a panel wherein we need to set the line border −

JPanel panel = new JPanel();

Now, create a border and set on the panel created above −

Border border = new LineBorder(Color.ORANGE, 4, true); panel.setBorder(border);

The following is an example to set LineBorder color and width −

package my; import java.awt.Color; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.JScrollPane; import javax.swing.JTable; import javax.swing.border.Border; import javax.swing.border.LineBorder; public class SwingDemo {    public static void main(String[] args) {       JFrame frame = new JFrame();       JPanel panel = new JPanel();       Border border = new LineBorder(Color.ORANGE, 4, true);       panel.setBorder(border);       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.setCellSelectionEnabled(true);       panel.add(new JScrollPane(table));       frame.add(panel);       frame.setSize(550, 400);       frame.setVisible(true);    } }

Output