Let’s say we want the last child node of a node, then use the getLastChild() method −node3.getFirstChild()Display the node’s last child on Console −System.out.println("The last child of node 3 = "+node3.getLastChild());The following is an example to get this node’s last child in a JTree −Examplepackage my; import javax.swing.JFrame; import javax.swing.JTree; import javax.swing.tree.DefaultMutableTreeNode; 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 (Product1 - P66778)");       DefaultMutableTreeNode node2 = new DefaultMutableTreeNode("Accessories ... Read More

To add a separator, use the addSeparator() method. Let us first create a toolbar −JToolBar toolbar = new JToolBar();Now, we will create some components and set a separator to separate them as shown below −toolbar.add(new JTextArea(" Add name here")); toolbar.add(new JButton("Submit Name")); toolbar.addSeparator(); toolbar.add(new JTextArea(" Add age here")); toolbar.add(new JButton("Submit Age"));The following is an example to add separator in a ToolBar with Java −Examplepackage my; import java.awt.BorderLayout; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.JTextArea; import javax.swing.JToolBar; public class SwingDemo {    public static void main(String[] args) {       JPanel panel = new JPanel(new BorderLayout());       ... Read More

To display JTabbedPane on the right, you need to set the location to the right using the constant RIGHT −JTabbedPane tabbedPane = new JTabbedPane(JTabbedPane.RIGHT);The following is an example to display JTabbedPane on the right −Examplepackage my; import javax.swing.*; public class SwingDemo {    public static void main(String args[]) {       JFrame frame = new JFrame("Technologies");       JTabbedPane tabbedPane = new JTabbedPane(JTabbedPane.RIGHT);       JPanel panel1, panel2, panel3, panel4, panel5;       panel1 = new JPanel();       panel2 = new JPanel();       panel3 = new JPanel();       panel4 = ... Read More

Let us first create a toolbar −JToolBar toolbar = new JToolBar();Now, set the orientation to create vertical toolbar −toolbar.setOrientation(SwingConstants.VERTICAL);The following is an example to create a vertical toolbar in Java −package my; import java.awt.BorderLayout; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JTextArea; import javax.swing.JToolBar; import javax.swing.SwingConstants; public class SwingDemo {    public static void main(String[] args) {       JFrame frame = new JFrame();       JToolBar toolbar = new JToolBar();       toolbar.setOrientation(SwingConstants.VERTICAL);       toolbar.add(new JTextArea());       toolbar.add(new JButton("Submit"));       frame.add(toolbar, BorderLayout.WEST);       frame.setTitle("Vertical ToolBar");       frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);   ... Read More

Yes, we can do that with Java Swings as shown below. Here, we have a panel set with GridLayout and another panel with BorderLayout −JPanel panelGrid = new JPanel(new GridLayout(10, 5, 10, 10)); panelGrid.add(new JCheckBox("Demo CheckBox1")); panelGrid.add(new JCheckBox("Demo CheckBox2")); panelGrid.add(btnAPanel); panelGrid.add(btnBPanel); panelGrid.add(btnCPanel); panelGrid.add(btnDPanel); JPanel panelBrdLayout = new JPanel(new BorderLayout()); panelBrdLayout.add(panelGrid, BorderLayout.NORTH);The following is an example to combine GridLayout and BorderLayout −package my; import java.awt.BorderLayout; import java.awt.Dimension; import java.awt.GridLayout; import javax.swing.JButton; import javax.swing.JCheckBox; import javax.swing.JFrame; import javax.swing.JPanel; public class SwingDemo {    public static void main(String[] args) {       JButton btnA = new JButton("Button1");       JButton btnB ... Read More

We are inserting a tab just after the first tab by using the index value 1. Here, index 1 would be location 2nd i.e. just after the first tab of the JTabbedPane container.The following is an example to insert a tab after the first tab −Examplepackage my; import javax.swing.*; import java.awt.*; public class SwingDemo {    public static void main(String args[]) {       JFrame frame = new JFrame("Devices");       JTabbedPane tabbedPane = new JTabbedPane();       JTextArea text = new JTextArea(100, 100);       JPanel panel1, panel2, panel3, panel4, panel5, panel6, panel7, panel8;   ... Read More

For a dialog box with Yes No Cancel buttons, you need to use the JOptionPane.showConfirmDialog(), wherein you will get a confirmation dialog box.The following is an example to create a dialog box in Java with Yes No and cancel buttons −Examplepackage my; import java.awt.Dimension; import javax.swing.ImageIcon; import javax.swing.JLabel; import javax.swing.JOptionPane; import javax.swing.JPanel; import javax.swing.SwingConstants; import javax.swing.UIManager; public class SwingDemo {    public static void main(String[] args) {       ImageIcon icon = new ImageIcon("E −ew.PNG");       JPanel panel = new JPanel();       panel.setSize(new Dimension(250, 100));       panel.setLayout(null);       JLabel label1 = ... Read More

At first, set two components which we will dividing −JComponent one = new JLabel("Label One"); one.setBorder(BorderFactory.createLineBorder(Color.yellow)); JComponent two = new JLabel("Label Two"); two.setBorder(BorderFactory.createLineBorder(Color.orange));Now, split it using SplitPane −Examplepackage my; import java.awt.BorderLayout; import java.awt.Color; import javax.swing.BorderFactory; import javax.swing.JComponent; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JSplitPane; public class SwingDemo {    public static void main(String[] a) {       JFrame frame = new JFrame();       frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);       JComponent one = new JLabel("Label One");       one.setBorder(BorderFactory.createLineBorder(Color.yellow));       JComponent two = new JLabel("Label Two");       two.setBorder(BorderFactory.createLineBorder(Color.orange));       JComponent three = new JLabel("Label ... Read More

Yes, we can change the default cursor representation in Java. Let us first create a button component −JButton button = new JButton("Button with two borders");Whenever user will keep the mouse cursor on the above button component, the cursor would change to hand cursor −Cursor cursor = button.getCursor(); button.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));The following is an example to change the cursor −Examplepackage my; import java.awt.BorderLayout; import java.awt.Color; import java.awt.Container; import java.awt.Cursor; 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[]) {       JFrame frame = new JFrame("Demo");   ... Read More

In this article, we will go over a Java program that counts the number of child nodes of the root node in a JTree using Java. This program uses the getChildCount() method to retrieve and display the count of direct child nodes under the root. This is helpful for applications involving hierarchical structures, like directories or organizational charts. Steps to count the child of the root node in a JTree Following are the steps to count the child of the root node in a JTree −Import the necessary classes JFrame, JTree, and DefaultMutableTreeNode from java.swing package.Create a main class named SwingDemo.Define the ... Read More