A JToolTip is a subclass of JComponent class and we can create a tooltip for any java component by using setToolTipText() method, it can be used to set up a tooltip for the component. The important methods of a JToolTip class are getAccessibleContext(), getComponent(), paramString() and updateUI(). We can change both the background and foreground color of a JToolTip class by using the put() method of UIManager class and pass the arguments ToolTip.background and ToolTip.foreground.Exampleimport java.awt.*; import javax.swing.*; public class JTooltipColorTest extends JFrame {    private JLabel label;    public JTooltipColorTest() {       setTitle("JTooltipColor Test");       setLayout(new FlowLayout());       ... Read More

We can implement a MouseListener interface when the mouse is stable while handling the mouse event. A MouseEvent is fired when we can press, release or click (press followed by release) a mouse button (left or right button) at the source object or position the mouse pointer at (enter) and away (exit) from the source object. We can detect a mouse event when the mouse moves over any component such as a label by using the mouseEntered() method and can be exited by using mouseExited() method of MouseAdapter class or MouseListener interface.Exampleimport java.awt.*; import java.awt.event.*; import javax.swing.*; public class MouseOverTest extends JFrame {    private ... Read More

A JButton is a subclass of AbstractButton and it can be used for adding platform-independent buttons in a Java Swing application. A JButon can generate an ActionListener interface when the user clicking on a button, it can also generate the MouseListener and KeyListener interfaces. By default, we can create a JButton with a text and also can change the text of a JButton by input some text in the text field and click on the button, it will call the actionPerformed() method of ActionListener interface and set an updated text in a button by calling setText(textField.getText()) method of a JButton class.Exampleimport java.awt.*; import java.awt.event.*; import javax.swing.*; public ... Read More

A JTextArea is a subclass of JTextComponent class and it is a multi-line text component to display the text or allow a user to enter the text. A JTextArea can generate a CaretListener interface when we are trying to implement the functionality of the JTextArea. By default, a JTextarea allows the orientation from left to right, if the user wants to enter a text from right to left by using the setComponentOrientation(ComponentOrientation.RIGHT_TO_LEFT) method of JTextArea class.Exampleimport java.awt.*; import javax.swing.event.*; import javax.swing.*; public class JTextAreaOrientationTest extends JFrame {    private JTextArea textArea;    public JTextAreaOrientationTest() {       setTitle("JTextAreaOrientation Test");       textArea = new ... Read More

A JTableHeader is a subclass of JComponent class, When we create a JTable object, the constructor creates a new JTableHeader object to manage the table component's header. A JTable supplies a setTableHeader() method that establishes the table header component's JTableHeader object and a getTableHeader() method that returns a reference to the table header component's JTableHeader object. We can set a tooltip text to each column of a JTableHeader by overriding the getToolTipText() method of JTableHeader class.Exampleimport java.awt.*; import java.awt.event.*; import javax.swing.*; import javax.swing.table.*; public class JTableHeaderToolTipTest extends JPanel {    private DefaultTableModel dmodel;    private JTable table;    private JScrollPane jsp;    public JTableHeaderToolTipTest() ... Read More

A JSlider is a subclass of JComponent class and it is similar to scroll bar which allows the user to select a numeric value from a specified range of integer values. It has a knob which can slide on a range of values and can be used to select a particular value. A JSlider can generate a ChangeListener interface and the important methods of JSlider are getMaximum(), getMinimum(), getOrientation(), getValue() and setValue(). The default position of a JSlider is horizontal and we can also set the position to vertical programmatically by selecting a menu item from a menu bar. It can generate an ActionListener interface ... Read More

A JComboBox is a subclass of JComponent class that displays a drop-down list and gives users options that we can select one and only one item at a time. A JComboBox can be editable or read-only. A getSelectedItem() method can be used to get the selected or entered item from a combo box. We can invoke a popup menu from a JComboxBox when the user right-clicks on it by implementing a MouseListener interface and need to override the mouseReleased() method. The method isPopupTrigger() of MouseEvent class can be used to show a popup menu.Exampleimport java.awt.*; import java.awt.event.*; import javax.swing.*; public class JComboBoxPopupTest extends JFrame {    private ... Read More

A JSplitPane is a subclass of JComponent class that allows us to arrange two components side by side horizontally or vertically in a single pane. The display areas of both components can also be adjusted at the runtime by the user. The important methods of JSplitPane are remove(), removeAll(), resetToPreferredSizes() and setDividerLocation(). A JSplitPane can generate a PropertyChangeListener interface. We can set a background color to a JSplitPane by adding two different background colors to two panels first and pass these arguments to JSplitPane constructor.Exampleimport javax.swing.*; import java.awt.*; public class JSplitPaneColorTest extends JFrame {    private JSplitPane jsp;    private JPanel panel1, panel2;    public JSplitPaneColorTest() ... Read More

A JTable is a subclass of JComponent for displaying complex data structures. A JTable component can follow the Model View Controller (MVC) design pattern for displaying the data in rows and columns. A JTable can generate TableModelListener, TableColumnModelListener, ListSelectionListener, CellEditorListener, RowSorterListener interfaces. We can implement the search functionality of a JTable by input a string in the JTextField, it can search for a string available in a JTable. If the string matches it can only display the corresponding value in a JTable. We can use the DocumentListener interface of a JTextField to implement it.Exampleimport java.awt.*; import javax.swing.*; import javax.swing.event.*; import javax.swing.table.*; public ... Read More

A JSplitPane is a subclass of JComponent class that allows us to arrange two components side by side horizontally or vertically in a single pane. The display areas of both components can also be adjusted at the runtime by the user. The important methods of JSplitPane are remove(), removeAll(), resetToPreferredSizes() and setDividerLocation(). A JSplitPane can generate a PropertyChangeListener interface. We can hide one of the panes (left or right) programmatically by click on the left button or right button and can generate action listeners for those buttons.Exampleimport java.awt.*; import java.awt.event.*; import javax.swing.*; public class JSplitPaneHideTest extends JFrame {    private JButton leftBtn, rightBtn;    private JSplitPane ... Read More