To set the text of the label component to be right-justified and bottom-aligned, you need to set the alignment. Set the label to be on the right and bottom aligned −JLabel label = new JLabel("Total Runs", JLabel.RIGHT); label.setVerticalAlignment(JLabel.BOTTOM);Here, we have set the size of the label as well as the color that includes foreground and background color −label.setPreferredSize(new Dimension(220, 70)); label.setOpaque(true); label.setBackground(Color.YELLOW); label.setForeground(Color.RED);The following is an example to set the content of the lable to be right-justified and bottom-aligned −Examplepackage my; import java.awt.Color; import java.awt.Dimension; import java.awt.FlowLayout; import java.awt.Font; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JTextArea; import javax.swing.WindowConstants; public class SwingDemo ... Read More

In this article, we create a JTable in Java Swing to display information about different programming technologies and their tutorial availability. The table is set up with specific columns and rows, each containing data on a particular technology. We also demonstrate how to set a custom height for a single row in the table. Specifically, the height of the 4th row is adjusted to 30 pixels to show how you can control row height individually in a JTable. The table is then displayed within a scrollable JFrame window. table.setRowHeight(3, 30); The above sets row height to 30 pixels for row index ... Read More

Adding rows dynamically to a JTable is a common task in Java Swing when working with user interfaces that involve tabular data. This article walks you through creating a Java Swing application that appends a new row to a JTable when the user inputs data and clicks a button. What is JTable? A JTable is a powerful Swing component for displaying and editing tabular data. By using a DefaultTableModel, we can manage the table's data dynamically, including adding or removing rows. This makes it an excellent choice for applications requiring user interaction. Approach Following are the steps to append a row ... Read More

To display a title to the JTable, you can set a title for the JPanel, which already consists of a JTable.Here, we are using createTitledBorder() for the JPanel to set the title for the panel border that would eventually work for table title.Let’s say the following is the JPanel −JPanel panel = new JPanel();Now, use setBorder() and the BorderFactory class to set a title border for the panel that would be our table title as well −panel.setBorder(BorderFactory.createTitledBorder(    BorderFactory.createEtchedBorder(), "My Demo Table", TitledBorder.LEFT, TitledBorder.TOP));The following is an example to add a title to a JTable −Examplepackage my; import javax.swing.BorderFactory; import ... Read More

With echo char, you can set a character that would appear whenever a user will type the password in the JPasswordField.Let us first create a new JPassword field −JPasswordField passwd = new JPasswordField();Now, use the setEchoChar() to set the echo char for password field. Here, we have asterisk (*) as the field for password −passwd.setEchoChar('*');The following is an example to set echo char for password field −Examplepackage my; import java.awt.GridLayout; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JPasswordField; import javax.swing.JTextField; import javax.swing.SwingConstants; public class SwingDemo {    public static void main(String[] args) throws Exception {       JFrame frame = new ... Read More

Let’s say we have a menu and within that we need to set the JCheckBoxMenuItem. Here’s the Menu −JMenu editMenu = new JMenu("Edit"); editMenu.setMnemonic(KeyEvent.VK_E); menuBar.add(editMenu);Now, set the JCheckBoxMenuItem and add it to the editMenu created above −JCheckBoxMenuItem checkMenuItem = new JCheckBoxMenuItem("SelectAll"); checkMenuItem.setMnemonic(KeyEvent.VK_B); editMenu.add(checkMenuItem);The following is an example to set JCheckBoxMenuItem for a MenuItem in Java −Examplepackage my; import java.awt.Color; import java.awt.event.KeyEvent; import javax.swing.JCheckBoxMenuItem; import javax.swing.JFrame; import javax.swing.JMenu; import javax.swing.JMenuBar; import javax.swing.JMenuItem; import javax.swing.UIManager; public class SwingDemo {    public static void main(final String args[]) {       JFrame frame = new JFrame("MenuBar Demo");       frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);     ... Read More

Create a check box first and set valueJCheckBox checkBox = new JCheckBox("In-Stock");Set the JCheckBox for the editor so that the editor uses the check box −TreeCellEditor editor = new DefaultCellEditor(comboBox); tree.setEditable(true); tree.setCellEditor(editor);The following is an example to create a Default Cell Editor that uses a JCheckBox −Examplepackage my; import javax.swing.DefaultCellEditor; import javax.swing.JCheckBox; import javax.swing.JFrame; import javax.swing.JTree; import javax.swing.tree.DefaultMutableTreeNode; import javax.swing.tree.TreeCellEditor; public class SwingDemo {    public static void main(String[] args) throws Exception {       JFrame frame = new JFrame("Demo");       DefaultMutableTreeNode node = new DefaultMutableTreeNode("Products");       DefaultMutableTreeNode node1 = new DefaultMutableTreeNode("Clothing");       ... Read More

To set the foreground color for different words, use the SimpleAttributeSet and StyleConstants class. With that, use StyledDocument class as well for different words style. For different words, use insertString().At first, create a new JTextPane -At first, create a new JTextPane: JTextPane pane = new JTextPane();Now, use the classes to set the style and color for some words −StyledDocument doc = textPane.getStyledDocument(); Style style = textPane.addStyle("", null); StyleConstants.setForeground(style, Color.red); StyleConstants.setBackground(style, Color.white); doc.insertString(doc.getLength(), "Game of Thrones ", style);Now, style some other words differently −StyleConstants.setForeground(style, Color.yellow); StyleConstants.setBackground(style, Color.gray); doc.insertString(doc.getLength(), "Season 8", style);The following is an example to set foreground color for different ... Read More

We can set or disallow selection of column in the table using setColumnSelectionAllowed().Let’s say the following is our table −DefaultTableModel tableModel = new DefaultTableModel(); JTable table = new JTable(tableModel);If you want to allow selection of column, then set the method to TRUE −table.setColumnSelectionAllowed(true);If you want to disallow selection of column, then set the method to FALSE −table.setRowSelectionAllowed(false);Here, in the below example we have disallowed selection of columns −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

To set a spinner of dates, at first create a date object −Date today = new Date();Now, use SpinnerDateModel −JSpinner spinner2 = new JSpinner(new SpinnerDateModel(today, null, null, Calendar.MONTH));We will now consider a DateEditor, which is an editor for a JSpinner whose model is a SpinnerDateModel. Set the format for month here −JSpinner.DateEditor editor = new JSpinner.DateEditor(spinner2, "MM"); spinner2.setEditor(editor);The following is an example to set a spinner of date in Java −Examplepackage my; import java.awt.GridBagLayout; import java.util.Calendar; import java.util.Date; import javax.swing.*; public class SwingDemo {    public static void main(String[] args) {       JFrame frame = new JFrame("Spinner Demo"); ... Read More