To get the count of siblings of this node, use the getSiblingCount() method. Let’s say you have a node with 4 child nodes. Find the sibling of any of this node’s child node. Here, “eight” is the child node −eight.getSiblingCount());Note − Remember, a node is it’s own sibling.The following is an example to get the number of siblings of this node 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 (Product2 - P66779)");       DefaultMutableTreeNode node3 = new DefaultMutableTreeNode("Home Decor (Product3 - ... Read More

In Java, the do-while and while loops are used to repeat a block of code multiple times based on a condition. These loops help us to avoid writing the same code again and again. Both loops are used when we don't know exactly how many times the loop should run. In this article, we will understand the difference between the while loop and the do-while loop. The while Loop The while loop in java executes one or more statements after testing the loop continuation condition at the start of each iteration. Syntax The while loop follows the syntax given ... Read More

Double-buffering is the process of drawing graphics into an off-screen image buffer and then copying the contents of the buffer to the screen all at once.For the complex graphics, using double-buffering can reduce flickering issues.Java Swing automatically supports double-buffering for all of its components.Double-buffering is memory intensive, its use is only justified for components that are repainted very frequently or have particularly complex graphics to display.If a container uses double-buffering, any double-buffered children it has shared the off-screen buffer of the container, the required off-screen buffer is never larger than the on-screen size of the application.To enable double buffering, simply ... Read More

AWT stands for Abstract Window ToolKit and it supports Java GUI programming. It is a portable GUI library for Stand-alone Java applications/applets. The AWT provides the connection between our application and the native GUI while Java Swing implements a set of GUI components that build on AWT technology and it can provide a pluggable look and feel. Java Swing is implemented entirely in the Java programming language.First of all, by a heavy-weight, it means the code will take comparatively more time to load and it will consume more System resources. AWT is considered to be heavy-weight because its components are dependent ... Read More

To get the node at a specified index in a JTree, use the getChildAt() method. Here, we are finding the node at index 3 i.e. 4th node −node.getChildAt(3)The following is an example to get the node at a specified index 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 (Product2 ... Read More

Let’s say we want the parent of a node, then use the getParent() method -node3.getFirstChild()You can also get the parent of child node. Here, “nine” is the child node −nine.getParent()The output is as follows displaying this node’s parent on Console −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 (Product2 - P66779)");   ... Read More

To set the alignment of the label content along the Y axis, use the setVerticalAlignment() method. Let us first set a label component. We have set the label background color as well so that we can check the alignment of the label’s content properly −JLabel label = new JLabel("Product Name "); label.setPreferredSize(new Dimension(190, 100)); label.setOpaque(true); label.setBackground(Color.ORANGE);Now, we will align the label content along the Y axis −label.setVerticalAlignment(JLabel.CENTER);The following is an example to set the alignment of the JLabel content along the Y axis −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 {    public static void main(String[] args) {       JFrame frame = new JFrame("Our Frame ... Read More

To set the alignment of the label content along the X axis, use the setHorizontalAlignment() method. Let us first set a label component. We have set the label background color as well so that we can check the alignment of the label’s content properly −JLabel label = new JLabel("Team "); label.setPreferredSize(new Dimension(190, 100)); label.setOpaque(true); label.setBackground(Color.BLUE); label.setForeground(Color.WHITE);Now, we will align the label content along the X axis −label.setHorizontalAlignment(JLabel.CENTER);The following is an example to set the alignment of the JLabel content along the X axis −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 ... Read More

Let us create a label with image icon −JLabel label = new JLabel("SUBJECT "); label.setIcon(new ImageIcon("E:ew.png"));Now, create another component −JTextArea text = new JTextArea(); text.setText("Add subject here...");Align the components with GridBagLayout −panel.setLayout(new GridBagLayout());The following is an example to center a label with an image icon −Examplepackage my; import java.awt.GridBagLayout; import javax.swing.BorderFactory; import javax.swing.ImageIcon; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JPanel; import javax.swing.JTextArea; import javax.swing.WindowConstants; public class SwingDemo {    public static void main(String[] args) {       JFrame frame = new JFrame("Demo Frame");       JPanel panel = new JPanel();       JLabel label = new JLabel("SUBJECT "); ... Read More

In this article we will learn to insert styled text into a JTextPane component in Java. The JTextPane component is a versatile text editor that supports rich text features, including the ability to style text with different fonts, colors, and sizes. By leveraging the StyledDocument and Style classes, you can insert styled text dynamically into a JTextPane using Java Swing. Insert styled text in a JTextPane component using the SimpleAttributeSet and StyleConstants classes. With that, we will also use StyledDocument. Java Swing The Swing API is a collection of flexible GUI components designed to simplify the development of Java-based front-end ... Read More