To disable auto resizing for a table in Java, set the setAutoResizeMode() to AUTO_RESIZE_OFF −JTable table = new JTable(tableModel); table.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);The following is an example to disable auto resizing for a JTable in Java −package my; import java.awt.Dimension; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.JRootPane; import javax.swing.JScrollPane; import javax.swing.JTable; import javax.swing.table.DefaultTableModel; public class SwingDemo {    public static void main(String[] argv) throws Exception {       JFrame frame = new JFrame("Demo");       JPanel panel = new JPanel();       String data[][] = { {"Australia", "5", "1"},          {"US", "10", "2"},          {"Canada", ... Read More

To create two borders for a single component, use the createCompoundBorder() method in Java. Here, we have created LineBorder nd TitledBorder −LineBorder lineBorder = new LineBorder(Color.red); TitledBorder titleBorder = new TitledBorder("Demo Title"); Border border = BorderFactory.createCompoundBorder(lineBorder, titleBorder);Now, set both the borders for a single component −JButton button = new JButton("two borders"); button.setBorder(border);The following is an example to create two borders for a single component −Examplepackage my; import java.awt.BorderLayout; import java.awt.Color; import java.awt.Container; import javax.swing.BorderFactory; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.border.Border; import javax.swing.border.EtchedBorder; import javax.swing.border.LineBorder; import javax.swing.border.TitledBorder; public class SwingDemo {    public static void main(String args[]) {       ... Read More

To change header background color, at first get the header background −JTableHeader tableHeader = table.getTableHeader();Now, set the background color using set Background() −tableHeader.setBackground(Color.black);Above, we have used the Color class to set the color.The following is an example to change the header background color of a JTable −Examplepackage my; import java.awt.Color; import java.awt.Font; import javax.swing.JFrame; import javax.swing.JScrollPane; import javax.swing.JTable; import javax.swing.table.JTableHeader; public class SwingDemo {    public static void main(String[] argv) throws Exception {       Integer[][] marks = {          { 70, 66, 76, 89, 67, 98 },          { 67, 89, 64, ... Read More

To display all the titles of the JTabbedPane, let us first get the count of tabs −int count = tabbedPane.getTabCount();Now, loop through the number of tabs in the JTabbedPane. Use the getTitleAt() to get the title of each and every tab −for (int i = 0; i < count; i++) {    String str = tabbedPane.getTitleAt(i);    System.out.println(str); }The following is an example to display all the titles of JTabbedPane tabs on Console −Examplepackage my; import javax.swing.*; import java.awt.*; public class SwingDemo {    public static void main(String args[]) {       JFrame frame = new JFrame("Devices");     ... Read More

Set a MatteBorder from BorderFactory class −MatteBorder border = (MatteBorder)BorderFactory.createMatteBorder(2, -1, 5, 10, icon);Now, set the above created MatteBorder to a component −JButton button = new JButton("Matte Border"); button.setBorder(border);The following is an example to set a MatteBorder from BorderFactory class −Examplepackage my; import java.awt.BorderLayout; import java.awt.Container; import javax.swing.BorderFactory; import javax.swing.ImageIcon; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.border.Border; import javax.swing.border.EtchedBorder; import javax.swing.border.MatteBorder; public class SwingDemo {    public static void main(String args[]) {       JFrame frame = new JFrame("Demo");       frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);       Border raisedBorder = new EtchedBorder(EtchedBorder.RAISED);       ImageIcon icon = new ImageIcon("new.gif");   ... Read More

To apply adjustments to the last column only, use the setAutoResizeMode and set the mode. The mode here would be AUTO_RESIZE_LAST_COLUMN. This will allow you to adjust only the last columns even if any of the column header is dragged to resize.Let us first see an example to create a table in Java −Examplepackage my; import java.awt.Color; import java.awt.Font; import javax.swing.JFrame; import javax.swing.JScrollPane; import javax.swing.JTable; import javax.swing.table.DefaultTableModel; public class SwingDemo {    public static void main(String[] argv) throws Exception {       DefaultTableModel tableModel = new DefaultTableModel();       JTable table = new JTable(tableModel);       tableModel.addColumn("Technology"); ... Read More

To create and set empty border to a component, use the BorderFactory class createEmptyBorder() method −EmptyBorder emptyBorder = (EmptyBorder) BorderFactory.createEmptyBorder();To set the above border to a component, use the setBorder() method −JButton button = new JButton("Empty Border"); button.setBorder(emptyBorder);The following is an example to create and set and empty border from BorderFactory class −package my; import java.awt.BorderLayout; import java.awt.Color; import java.awt.Container; import javax.swing.BorderFactory; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.border.Border; import javax.swing.border.EmptyBorder; import javax.swing.border.SoftBevelBorder; public class SwingDemo {    public static void main(String args[]) {       JFrame frame = new JFrame("Demo");       frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);       ... Read More

To count the number of rows of a table, use the getRowCount() method −table.getRowCount()To count the number of columns of a table, use the getColumnCount() method −table.getColumnCount()The following is an example to get the number of rows and columns of a JTable −Examplepackage my; import java.awt.Font; import javax.swing.JFrame; import javax.swing.JScrollPane; import javax.swing.JTable; import javax.swing.table.DefaultTableModel; public class SwingDemo {    public static void main(String[] argv) throws Exception {       DefaultTableModel tableModel = new DefaultTableModel();       JTable table = new JTable(tableModel);       tableModel.addColumn("Language/ Technology");       tableModel.addColumn("Text Tutorial");       tableModel.addColumn("Video Tutorial");     ... Read More

To add empty border to a component, use the BorderFactory class createEmptyBorder() method −Border emptyBorder = BorderFactory.createEmptyBorder(10, 10, 0, 0);To set the above border to a component, use the setBorder() method −JButton button = new JButton("Empty Border"); button.setBorder(emptyBorder);The following is an example to ad empty border to a JButton −Examplepackage my; import java.awt.BorderLayout; import java.awt.Color; import java.awt.Container; import javax.swing.BorderFactory; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.border.Border; import javax.swing.border.SoftBevelBorder; public class SwingDemo {    public static void main(String args[]) {       JFrame frame = new JFrame("Demo");       frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);       Border raisedBorder = new SoftBevelBorder(SoftBevelBorder.RAISED, ... Read More

We can set or disallow selection of row in the table using setRowSelectionAllowed().Let’s say the following is our table −DefaultTableModel tableModel = new DefaultTableModel(); JTable table = new JTable(tableModel);If you want to allow selection of row, then set the method to TRUE −table.setRowSelectionAllowed(true);If you want to disallow selection of row, then set the method to FALSE −table.setRowSelectionAllowed(false);We have disallowed selection of rows in the below example −Examplepackage my; import javax.swing.JFrame; import javax.swing.JScrollPane; import javax.swing.JTable; import javax.swing.table.DefaultTableModel; public class SwingDemo {    public static void main(String[] argv) throws Exception {       DefaultTableModel tableModel = new DefaultTableModel();       ... Read More