Java Articles

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Display all the titles of JTabbedPane tabs on Console in Java

George John
George John
Updated on 30-Jul-2019 537 Views

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");     ...

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How to change header background color of a table in Java

Anvi Jain
Anvi Jain
Updated on 30-Jul-2019 2K+ Views

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, ...

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How to disable auto resizing for a JTable in Java?

Arjun Thakur
Arjun Thakur
Updated on 30-Jul-2019 691 Views

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", ...

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How can we change the default font of the JTabbedPane tabs in Java?

George John
George John
Updated on 30-Jul-2019 457 Views

To display the default font of the tabs, you need to use the Font class. Let’s say we created a JTabbedPane in Java −JTabbedPane tabbedPane = new JTabbedPane();Now, set the Font with font face, style and font size −Font font = new Font("Arial", Font.CENTER_BASELINE, 20); tabbedPane.setFont(font);The following is an example to change the default font of the JTabbedPane tabs −package my; import javax.swing.*; import java.awt.*; public class SwingDemo {    public static void main(String args[]) {       JFrame frame = new JFrame("Technologies");       JTabbedPane tabbedPane = new JTabbedPane();       JPanel panel1, panel2, panel3, panel4, ...

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Can we display a JTabPane with TextArea in one of the tabs with Java

Chandu yadav
Chandu yadav
Updated on 30-Jul-2019 316 Views

Yes, we can display a JTabPane with TextArea in one of the tabs. For that, let us first create a JTabbedPane component −JTabbedPane tabbedPane = new JTabbedPane();Now, create a text area you want to set under one of the tabs −JTextArea text = new JTextArea(100, 100);Now, set panels for the tabs. Under one of them, set the text area we created above as shown below −panel2 = new JPanel(); panel2.add(text); panel3 = new JPanel(); panel4 = new JPanel(); panel5 = new JPanel(); panel6 = new JPanel(); panel7 = new JPanel(); panel8 = new JPanel();Now, one by one create different tabs ...

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How to set the location of the Tabs in a JTabbedPane Container to the left in Java?

Anvi Jain
Anvi Jain
Updated on 30-Jul-2019 834 Views

To set the location of the tabs in a JTabbedPane container, use the LEFT constant. Here, we will set the position to the left −JTabbedPane tabbedPane = new JTabbedPane(JTabbedPane.LEFT);The following is an example to set the location of the Tabs in a JTabbedPane Container to the left −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(JTabbedPane.LEFT);       JTextArea text = new JTextArea(100, 100);       JPanel panel1, panel2, panel3, panel4, panel5, panel6, panel7, ...

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How to set the content of the label to be right-justified and top-aligned in Java?

Arjun Thakur
Arjun Thakur
Updated on 30-Jul-2019 177 Views

To set the text of the label component to be right-justified and top-aligned, you need to set the alignment. Set the label to be on the right and top aligned −JLabel label = new JLabel("Fav Sports", JLabel.RIGHT); label.setVerticalAlignment(JLabel.TOP);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 top-aligned −package 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 ...

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Disable only the vertical scrollbar in Java

Smita Kapse
Smita Kapse
Updated on 30-Jul-2019 1K+ Views

To disable only the vertical scrollbar, use the VERTICAL_SCROLLBAR_NEVER constant, which displays only the horizontal scrollbar.The following is an example to disable only the vertical scrollbar in Java −Examplepackage my; import java.awt.BorderLayout; import java.awt.Dimension; import javax.swing.Box; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JScrollPane; public class SwingDemo {    public static void main(String args[]) {       JFrame frame = new JFrame("Demo");       frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);       JButton button1 = new JButton("Online Compiler");       JButton button2 = new JButton("Quiz");       JButton button3 = new JButton("Questions and Answers");       JButton button4 = new JButton("Videos"); ...

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Can we change the Cursor with Java Swing?

Ankith Reddy
Ankith Reddy
Updated on 30-Jul-2019 2K+ Views

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");   ...

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Can we prevent the collapse of nodes and child nodes in a JTree with Java?

Chandu yadav
Chandu yadav
Updated on 30-Jul-2019 516 Views

Yes, we can prevent the collapse of nodes and child nodes in a JTree using setExpandedState() method. This method sets the expanded state of this JTree.If state istrue, all parents of path and path are marked asexpanded.The following is an example that prevents the collapse of nodes and child nodes in a JTree with Java −Examplepackage my; import javax.swing.JFrame; import javax.swing.JTree; import javax.swing.text.Position; import javax.swing.tree.DefaultMutableTreeNode; import javax.swing.tree.TreePath; public class SwingDemo {    public static void main(String[] args) throws Exception {       JFrame frame = new JFrame("Demo");       DefaultMutableTreeNode node = new DefaultMutableTreeNode("Project");       DefaultMutableTreeNode ...

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