[Read more…] about JTabbedPane Orientation in Java Example

JTabbedPane : Set multiple tabbed sheets, which may contain other components. The user can select the sheet you want to see by tabs.

With the JTabbedPane class, we can have several components (usually objects JPanel) sharing the same space. The user can choose which component see selecting the tab of the desired component.

Create and configure a JtabbedPane

Insert, Delete, Find and Select 

Change the Appearance 

import java.awt.*;
import javax.swing.*;
public class JavaExampleTabbedPaneInJApplet extends JApplet
  {
     public void init()
      {
        Container Cntnr = getContentPane();
        JTabbedPane TbdPn = new JTabbedPane();
        JPanel PnlOne = new JPanel();
        JPanel PnlTwo = new JPanel();
        JPanel PnlThree = new JPanel();
        PnlOne.add(new JLabel("This is First Panel"));
        PnlTwo.add(new JLabel("This is Second Panel"));
        PnlThree.add(new JLabel("This is Third Panel"));
        TbdPn.addTab("Tab 1",new ImageIcon("tab.jpg"),PnlOne,"This is First Tab");
        TbdPn.addTab("Tab 2", new ImageIcon("tab.jpg"),PnlTwo,"This is Second Tab");
        TbdPn.addTab("Tab three",new ImageIcon("tab.jpg"),PnlThree,"This is Third Tab");
        Cntnr.setLayout(new BorderLayout());
        Cntnr.add(TbdPn);
    }
}
/*<APPLET CODE=JavaExampleTabbedPaneInJApplet.class WIDTH=410 HEIGHT=210></APPLET>*/
 

[Read more…] about Menus and Submenus in Java Example

A split pane is a lightweight container that allows you to arrange two components (only two) side by side horizontally or vertically in a single pane. The display areas of both the components can also be adjusted at the runtime by the user. A split pane is an object of JSplitPane class.

Some of the constructors defined by JSplitPane class are as follows.

JSplitPane ()

JSpliPane(int orientation, boolean continuousLayout)

JSplitPane(int orientation, Component TopOrLeft,BottomOrRight)

JSplitPane(int orientation, boolean continuousLayout, Component TopOrLeft, Component BottomOrRight)

where,

orientation specifies how components will be arranged – can have one of the two values:

HORIZONTAL_SPLIT and VERTICAL_SPLIT

continuousLayout can have one of the two values: true,if the components are resizable

when divider is moved, otherwise false (default value)

TopOrLeft specifies the object to be placed at top or left

BottomOrRight specifies the object to be placed at bottom or right

import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
public class JavaExampleSplitPaneInJApplet extends JApplet implements ActionListener
{
    JButton BtnTch,BtnSpltHoriz,BtnDvdrSz;
    JTextField TxtOne = new JTextField("Text Field One");
    JTextField TxtTwo = new JTextField("Text Field Two");
    JSplitPane SpltPn = new JSplitPane(JSplitPane.VERTICAL_SPLIT,TxtOne,TxtTwo);
    public void init()
      {
        Container Cntnr = getContentPane();
        JPanel Pnl = new JPanel();
        BtnTch = new JButton("One-Touch Expandable");
        BtnTch.addActionListener(this);
        Pnl.add(BtnTch);
        BtnSpltHoriz = new JButton("Horizontal Split");
        BtnSpltHoriz.addActionListener(this);
        Pnl.add(BtnSpltHoriz);
        BtnDvdrSz = new JButton("Extend Divider Size");
        BtnDvdrSz.addActionListener(this);
        Pnl.add(BtnDvdrSz);
        Cntnr.add(SpltPn, BorderLayout.CENTER);
        Cntnr.add(Pnl, BorderLayout.SOUTH);
      }
        public void actionPerformed(ActionEvent e1)
         {
            if(e1.getSource() == BtnTch)
              {
                 SpltPn.setOneTouchExpandable(true);
              }
                 if(e1.getSource() ==BtnSpltHoriz)
                {
                      SpltPn.setOrientation(SpltPn.HORIZONTAL_SPLIT);
                    }
                      if(e1.getSource() == BtnDvdrSz)
                     {
                           SpltPn.setDividerSize(SpltPn.getDividerSize() + 10);
                         }
         }
 }
/*<APPLET CODE=JavaExampleSplitPaneInJApplet.class WIDTH=610 HEIGHT=210></APPLET>*/
 

[Read more…] about Sound in Java Swing Example

[Read more…] about JSeparator Event in Java Example

[Read more…] about JSeparator Java Example

[Read more…] about Java Example Property()

[Read more…] about JProgressBar Update in Java Example

Progress bar is a user friendly control which is used to indicate the current status of some time consuming tasks such as software installation etc. It indicates the progress of a task by showing the percentage of completion using a color bar. The progress bar can be of two types namely, horizontal progress bar and vertical progress bar. In horizontal progress bar, the progress is indicated by filling the bar from left to right and in vertical progress bar, the progress is indicated by filling the bar from top to bottom. ·

A progress bar is an object of class JProgressBar which is a subclass of JComponent.

JProgressBar also implements the interface SwingConstants.

Some of the constructors defined by the JProgressBar class are as follows.

JProgressBar()

JProgressBar(int orientation)

JProgressBar(int min, int max)

JProgressBar(int orientation, int min, int max)

where,

orientation defines the orientation of the progress bar as VERTICAL or HORIZONTAL

min and max define the minimum and maximum value for the progress bar, respectively. The default values are 0 and 100

[Read more…] about JProgressBar Event in Java Example

JProgressBar: Displays the percentage of the total has a task to perform been completed. JProgressBar lack equivalents in the AWT. JprogressBar classes support horizontal and vertical orientations. The class is used JProgressBar  typically to show the progress of a task, such as loading an image.

The progress bar is usually set when lengthy operations are underway. It is updated periodically to update the status ofthe lengthy operation. It displays the progress of lengthy operation in terms of percentage of completion.

                      Constructors and methods of the class jProgressBar.

import java.awt.*;
import javax.swing.*;
public class JavaExampleProgressBarInJApplet extends JApplet
   {
     JProgressBar PrgsBar1,PrgsBar2,PrgsBar3,PrgsBar4,PrgsBar5,PrgsBar6;
     public void init()
      {
        Container Cntnr = getContentPane();
        Cntnr.setLayout(new FlowLayout());
        PrgsBar1 = new JProgressBar();
        PrgsBar1.setValue(50);
        Cntnr.add(PrgsBar1);
        PrgsBar2 = new JProgressBar();
        PrgsBar2.setMinimum(100);
        PrgsBar2.setMaximum(200);
        PrgsBar2.setValue(180);
        PrgsBar2.setForeground(Color.red);
        Cntnr.add(PrgsBar2);
        PrgsBar3 = new JProgressBar();
        PrgsBar3.setOrientation(JProgressBar.VERTICAL);
        PrgsBar3.setForeground(Color.blue);
        PrgsBar3.setValue(50);
        PrgsBar3.setStringPainted(true);
        PrgsBar3.setBorder(BorderFactory.createRaisedBevelBorder());
        Cntnr.add(PrgsBar3);
        PrgsBar4 = new JProgressBar();
        PrgsBar4.setOrientation(JProgressBar.VERTICAL);
        PrgsBar4.setForeground(Color.red);
        PrgsBar4.setValue(80);
        PrgsBar4.setStringPainted(true);
        PrgsBar4.setBorderPainted(false);
        Cntnr.add(PrgsBar4);
        PrgsBar5 = new JProgressBar();
        PrgsBar5.setOrientation(JProgressBar.VERTICAL);
        PrgsBar5.setStringPainted(true);
        PrgsBar5.setString("Welcome To Java!");
        PrgsBar5.setValue(90);
        Cntnr.add(PrgsBar5);
    }
 }
/*<APPLET CODE=JavaExampleProgressBarInJApplet.class WIDTH=500 HEIGHT=200></APPLET>*/
 

[Read more…] about Java Swing Plaf Componenetui

[Read more…] about JPasswordField Java Example

Overlay is a process of laying one component over another one. You can use Graphics2d to over layout one textfield component to another textfield.

import java.awt.*;
import javax.swing.*;
public class JavaExampleOverLayInJApplet extends JApplet
{
    public void init()
    {
        Container Cntnr = getContentPane();
        JPanel Pnl = new JPanel();
        Pnl.setLayout(new OverlayLayout(Pnl));
        Pnl.setBackground(Color.white);
        Pnl.setBorder(BorderFactory.createTitledBorder(BorderFactory.createEtchedBorder(),"OverLays"));
        JTextField Txt1 = new JTextField("Text One");
        JTextField Txt2 = new JTextField("Text Two");
        Txt1.setMinimumSize(new Dimension(35,35));
        Txt2.setMinimumSize(new Dimension(35,35));
        Txt1.setPreferredSize(new Dimension(110,110));
        Txt2.setPreferredSize(new Dimension(110,110));
        Txt1.setMaximumSize(new Dimension(125,125));
        Txt2.setMaximumSize(new Dimension(125,125));
        Txt1.setAlignmentX(0.3f);
        Txt1.setAlignmentY(0.3f);
        Txt2.setAlignmentX(0.9f);
        Txt2.setAlignmentY(0.9f);
        Pnl.add(Txt1);
        Pnl.add(Txt2);
        Cntnr.setLayout(new FlowLayout());
        Cntnr.add(Pnl);
    }
}
/*<APPLET  CODE =JavaExampleOverLayInJApplet.class WIDTH = 210  HEIGHT = 210 ></APPLET>*/
 

[Read more…] about showInternalMessageDialog Example in Java

List displays a list of items. It allows the user to make multiple selections from the given list of items. The list component is added in a scroll pane, so that the long list of items is scrollable. A list is an object of JList class.

Some of the constructors defined by JList class are as follows.

JList ()

JList(Object[] listdata)

where,

listdata represents the array of Object type that displays the elements

[Read more…] about Java – List – Select Multiple items Example

[Read more…] about JMenuItem Example in Java

There are several kinds of buttons in computer applications, buttons that you click on with the mouse pointer or that you activate with a key stroke. Buttons provide a way to tell the computer what to do. The buttons with the little round dots are called radio buttons, and they always come in groups of two or more. A set of radio buttons is a visual clue that you only have a choice of one of those options. Choosing another button automatically turns off the button that was currently selected, just like pressing a button on your car radio switches you from one station to the next.

Like other buttons, radio buttons are mostly found in a graphical user interface like the Macintosh or Windows or Presentation Manager, but they’re popping up in text-mode programs, too. Compare radio buttons with checkbox buttons, where you can choose as many of the checkboxes as you like.

import java.awt.*; 
 import javax.swing.*; 
 import java.awt.event.*; 
 public class JavaExampleMenuRadioButtonInJApplet extends JApplet implements ItemListener 
      { 
         ImageIcon Icn = new ImageIcon("item.jpg"); 
         JRadioButtonMenuItem 
         RdoBtnMnuItem1 = new JRadioButtonMenuItem("Item 1", Icn), 
         RdoBtnMnuItem2 = new JRadioButtonMenuItem("Item 2", Icn), 
         RdoBtnMnuItem3 = new JRadioButtonMenuItem("Item 3", Icn), 
         RdoBtnMnuItem4 = new JRadioButtonMenuItem("Item 4", Icn); 
         public void init() 
          { 
              Container Cntnr = getContentPane(); 
              JMenuBar MnuBar = new JMenuBar(); 
              JMenu Mnu = new JMenu("Radio Button Menu Items"); 
              Mnu.add(RdoBtnMnuItem1); 
              Mnu.add(RdoBtnMnuItem2); 
              Mnu.add(RdoBtnMnuItem3); 
              Mnu.add(RdoBtnMnuItem4); 
              ButtonGroup BtnGrp = new ButtonGroup(); 
              BtnGrp.add(RdoBtnMnuItem1); 
              BtnGrp.add(RdoBtnMnuItem2); 
              BtnGrp.add(RdoBtnMnuItem3); 
              BtnGrp.add(RdoBtnMnuItem4); 
              RdoBtnMnuItem1.addItemListener(this); 
              RdoBtnMnuItem2.addItemListener(this); 
              RdoBtnMnuItem3.addItemListener(this); 
              RdoBtnMnuItem4.addItemListener(this); 
              MnuBar.add(Mnu); 
              setJMenuBar(MnuBar); 
          } 
              public void itemStateChanged(ItemEvent e1) 
               { 
                  JMenuItem MnuItem= (JMenuItem) e1.getSource(); 
                  String ItmTxt = MnuItem.getText(); 
                  if(e1.getStateChange() == ItemEvent.SELECTED) 
                  ItmTxt += " was selected"; 
                  else 
                  ItmTxt += " was deselected"; 
              showStatus(ItmTxt); 
               } 
   } 
 /*<APPLET CODE = JavaExampleMenuRadioButtonInJApplet.class WIDTH = 350 HEIGHT = 280 ></APPLET>*/ 
 

[Read more…] about Java – Add Icon to Menu Item Example

[Read more…] about Disable Menuitem in Java Swing Example

We understand all upper menu structure of a graphical application that allows us to display a list of operations that in turn can contain other lists of operations. The basic structure consists of a menu JMenuBar (the top bar) from which dangle (JMenu) menus that we add elements (JMenuItem) that can be JCheckBoxMenuItem, and even JRadioButtonMenuItem JMenu. Consider now the methods of each of these classes:

JMenuBar:

public JMenuBar (): creates a new JMenuBar;
public JMenu add (JMenu m): add a JMenu to the MenuBar;
GetMenu public JMenu (int index): Returns the index associated with the corresponding menu.

JMenuItem (JCheckBoxMenuItem superclass, and JradioButtonItem JMenu):
public JMenuItem () creates an empty menu item;
public JMenuItem (String text) creates a string associated;
public JMenuItem (Icon icon) is created with an associated image that will be displayed in the menu;
public void setEnabled (boolean b) indicate whether we want or not can be selected.

JMenu:

public JMenu (String s) Creates a new JMenu that displays the specified string;
public JMenu add (JMenuItem menuItem): adds the JMenu JMenuItem;
public JMenu add (String s) Creates a new menu item with the specified text and puts it at the end of this JMenu;
public void addSeparator () adds a separating horizontal line;
public JMenuItem getItem (int pos): Returns the JMenuItem containing the indicated position 

import java.awt.*; 
 import javax.swing.*; 
 import java.awt.event.*; 
 public class JavaExampleMenuControlInJApplet extends JApplet implements ActionListener 
 { 
     public void init() 
      { 
         JMenuBar MnuBar = new JMenuBar(); 
         JMenu MnuOne = new JMenu("File"); 
         JMenuItem MnuItmOne = new JMenuItem("New..."), 
         MnuItmTwo = new JMenuItem("Open..."), 
         MnuItmThree = new JMenuItem("Exit"); 
         JButton BtnPrss = new JButton("Prees Here!"); 
         BtnPrss.setActionCommand("You Pressed the Button"); 
         BtnPrss.addActionListener(this); 
         MnuOne.add(MnuItmOne); 
         MnuOne.add(MnuItmTwo); 
         MnuOne.addSeparator(); 
         MnuOne.add(BtnPrss); 
         MnuOne.addSeparator(); 
         MnuOne.add(MnuItmThree); 
         JMenu MnuTwo = new JMenu("Edit"); 
         JMenuItem MnuItmFour = new JMenuItem("Cut"), 
         MnuItmFive = new JMenuItem("Copy"), 
         MnuItmSix = new JMenuItem("Paste"); 
         MnuTwo.add(MnuItmFour); 
         MnuTwo.add(MnuItmFive); 
         MnuTwo.add(MnuItmSix); 
         MnuBar.add(MnuOne); 
         MnuBar.add(MnuTwo); 
         setJMenuBar(MnuBar); 
      } 
         public void actionPerformed(ActionEvent e1) 
          { 
             JButton Btn = (JButton)e1.getSource(); 
             showStatus(Btn.getActionCommand()); 
         } 
  } 
 /*<APPLET CODE=JavaExampleMenuControlInJApplet.class  WIDTH = 350  HEIGHT = 280 ></APPLET>*/ 
 

[Read more…] about MenuAccelerator in Java example

[Read more…] about ListMultiple in Java Swing Example

JList: The JList is a list on which we can view and select more than one item simultaneously. In case there are more items than can be simultaneously displayed due to the size of the list, a vertical scroll bar appears. Relevant methods:

public JList () Creates an empty JList;
public JList (Object [] listaItems) created with the items contained in the array of objects;
public JList (Vector listaItems) created with the Vector elements;
getSelectedIndex public int (): returns the index of the first selected item (-1 if none);
public int [] getSelectedIndices (): returns an array of indices that are selected;
getSelectedValue public Object () gives the reference to the object;
public Object [] getSelectedValues ​​(): returns an array of Object
selected.

import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
public class JavaExampleListImageInJApplet extends JApplet
{
    public void init()
    {
        Container Cntnr = getContentPane();
        newModel NwModl = new newModel();
        newRenderer NwRndrer = new newRenderer();
        JList Lst = new JList(NwModl);
        Lst.setCellRenderer(NwRndrer);
        Lst.setVisibleRowCount(5);
        Cntnr.add(new JScrollPane(Lst));
    }
}
      class newModel extends DefaultListModel
       {
           public newModel()
           {
               for(int loop_indx = 0; loop_indx <= 10; loop_indx++)
                    {
                       addElement(new Object[] {"ITEM :" + loop_indx,new ImageIcon("Koala.jpg")});
                    }
           }
       }
             class newRenderer extends JLabel implements ListCellRenderer
               {
                  public newRenderer()
                    {
                       setOpaque(true);
                    }
                       public Component getListCellRendererComponent(JList JLst, Object ob1, int indx, boolean isSelected,boolean Focus)
                         {
                             newModel Mdl = (newModel)JLst.getModel();
                             setText((String)((Object[])ob1)[0]);
                             setIcon((Icon)((Object[])ob1)[1]);
                             if(!isSelected)
                          {
                                 setBackground(JLst.getBackground());
                                setForeground(JLst.getForeground());
                              }
                                else
                            {
                                        setBackground(JLst.getSelectionBackground());
                                        setForeground(JLst.getSelectionForeground());
                                    }
                                        return this;
                          }
                }
/*<APPLET CODE=JavaExampleListImageInJApplet.class WIDTH=310 HEIGHT=310 ></APPLET>*/