calling a class

[Kendra Payne]

Hi, I am trying to put these two programs together to show a splash screen at the beginning of my program. I don't have a clue as to how to do this. Here are the two programs. I am new to Java and really having a hard time. I have read and read and still don't get it. Your help is really appreciated.

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.text.*;
 
public class DVD extends JFrame implements ActionListener
{
//construct components
JLabel sortPrompt = new JLabel("Sort by:");
JComboBox fieldCombo = new JComboBox();
JTextPane textPane = new JTextPane();
 
//initialize data in arrays
String title[] = {"Casablanca", "Citizen Kane", "singin in the Rain","The Wizard of Oz"};
String studio[] = {"Warner Brothers", "RKO PIctures", "MGM", "MGM"};
String year[] = {"1942", "1941", "1952", "1939"};
 
//construct instance of Charm
public DVD()
{
super("Charm Farm Manager");
}
 
//create the menu system
public JMenuBar createMenuBar()
{
//create an instance of the menu
JMenuBar mnuBar = new JMenuBar();
setJMenuBar(mnuBar);
 
//construct and populate the File menu
JMenu mnuFile = new JMenu("File", true);
mnuFile.setMnemonic(KeyEvent.VK_F);
mnuFile.setDisplayedMnemonicIndex(0);
mnuBar.add(mnuFile);
 
JMenuItem mnuFileExit = new JMenuItem("Exit");
mnuFileExit.setMnemonic(KeyEvent.VK_X);
mnuFileExit.setDisplayedMnemonicIndex(1);
mnuFile.add(mnuFileExit);
mnuFileExit.setActionCommand("Exit");
mnuFileExit.addActionListener(this);
 
//construct and pouplate the Edit menu
JMenu mnuEdit = new JMenu("Edit", true);
mnuEdit.setMnemonic(KeyEvent.VK_E);
mnuEdit.setDisplayedMnemonicIndex(0);
mnuBar.add(mnuEdit);
 
JMenuItem mnuEditInsert = new JMenuItem("Insert new Charm");
mnuEditInsert.setMnemonic(KeyEvent.VK_I);
mnuEditInsert.setDisplayedMnemonicIndex(0);
mnuEdit.add(mnuEditInsert);
mnuEditInsert.setActionCommand("Insert");
mnuEditInsert.addActionListener(this);
 
JMenu mnuEditSearch = new JMenu("Search");
mnuEditSearch.setMnemonic(KeyEvent.VK_R);
mnuEditSearch.setDisplayedMnemonicIndex(3);
mnuEdit.add(mnuEditSearch);
 
JMenuItem mnuEditSearchByTitle = new JMenuItem("by Title");
mnuEditSearchByTitle.setMnemonic(KeyEvent.VK_T);
mnuEditSearchByTitle.setDisplayedMnemonicIndex(3);
mnuEditSearch.add(mnuEditSearchByTitle);
mnuEditSearchByTitle.setActionCommand("title");
mnuEditSearchByTitle.addActionListener(this);
 
JMenuItem mnuEditSearchByStudio = new JMenuItem("by Studio");
mnuEditSearchByStudio.setMnemonic(KeyEvent.VK_S);
mnuEditSearchByStudio.setDisplayedMnemonicIndex(3);
mnuEditSearch.add(mnuEditSearchByStudio);
mnuEditSearchByStudio.setActionCommand("studio");
mnuEditSearchByStudio.addActionListener(this);
 
JMenuItem mnuEditSearchByYear = new JMenuItem("by year");
mnuEditSearchByYear.setMnemonic(KeyEvent.VK_Y);
mnuEditSearchByYear.setDisplayedMnemonicIndex(3);
mnuEditSearch.add(mnuEditSearchByYear);
mnuEditSearchByYear.setActionCommand("year");
mnuEditSearchByYear.addActionListener(this);
 
return mnuBar;
}
 
//create content pane
public Container createContentPane()
{
//populate the JCombobox
fieldCombo.addItem("Title");
fieldCombo.addItem("Studio");
fieldCombo.addItem("Year");
fieldCombo.addActionListener(this);
fieldCombo.setToolTipText("click the drop down arrow to diplay sort fields.");
 
//construct and populate the north panel
JPanel northPanel = new JPanel();
northPanel.setLayout(new FlowLayout());
northPanel.add(sortPrompt);
northPanel.add(fieldCombo);
 
//create the JTextPane and cneter panel
JPanel centerPanel = new JPanel();
setTabsAndStyles(textPane);
textPane = addTextToTextPane();
JScrollPane scrollPane = new JScrollPane(textPane);
scrollPane.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
scrollPane.setPreferredSize(new Dimension(500, 200));
centerPanel.add(scrollPane);
 
//create Container and set attributes
Container c = getContentPane();
c.setLayout(new BorderLayout(10,10));
c.add(northPanel,BorderLayout.NORTH);
c.add(centerPanel,BorderLayout.CENTER);
 
return c;
}
 
//method to create tab stops and set font styles
protected void setTabsAndStyles(JTextPane textPane)
{
//create Tab Stops
TabStop[] tabs = new TabStop[2];
tabs[0] = new TabStop(200, TabStop.ALIGN_LEFT, TabStop.LEAD_NONE);
tabs[1] = new TabStop(350, TabStop.ALIGN_LEFT, TabStop.LEAD_NONE);
TabSet tabset = new TabSet(tabs);
 
//set Tab Style
StyleContext tabStyle = StyleContext.getDefaultStyleContext();
AttributeSet aset =
tabStyle.addAttribute(SimpleAttributeSet.EMPTY, StyleConstants.TabSet, tabset);
textPane.setParagraphAttributes(aset, false);
 
//set Font Style
Style fontStyle =
StyleContext.getDefaultStyleContext().getStyle(StyleContext.DEFAULT_STYLE);
 
Style regular = textPane.addStyle("regular", fontStyle);
StyleConstants.setFontFamily(fontStyle, "SanSerif");
 
Style s = textPane.addStyle("italic", regular);
StyleConstants.setItalic(s, true);
 
s = textPane.addStyle("bold", regular);
StyleConstants.setBold(s, true);
 
s = textPane.addStyle("large", regular);
StyleConstants.setFontSize(s, 16);
}
 
//method to add new text to the JTextPane
public JTextPane addTextToTextPane()
{
Document doc = textPane.getDocument();
try
{
//clear previous text
doc.remove(0, doc.getLength());
 
//insert title
doc.insertString(0,"TITLE\tSTUDIO\tYEAR\n", textPane.getStyle("large"));
 
//insert detail
for (int j = 0; j<title.length; j++)
{
doc.insertString(doc.getLength(), title[j] + "\t", textPane.getStyle("bold"));
doc.insertString(doc.getLength(), studio[j] + "\t", textPane.getStyle("italic"));
doc.insertString(doc.getLength(), year[j] + "\n", textPane.getStyle("regular"));
}
}
catch(BadLocationException ble)
{
System.err.println("Couldn't insert text.");
}
 
return textPane;
}
 
//event to process user clicks
public void actionPerformed(ActionEvent e )
{
String arg = e.getActionCommand();
 
//user clicks tthe sort by combo box
if (e.getSource() == fieldCombo)
{
switch(fieldCombo.getSelectedIndex())
{
case 0:
sort(title);
break;
case 1:
sort(studio);
break;
case 2:
sort(year);
break;
}
}
 
//user clicks Exit on the File menu
if (arg == "Exit")
System.exit(0);
 
//user clicks Insert New DVD on the Edit menu
if (arg == "Insert")
{
//accept new data
String newTitle = JOptionPane.showInputDialog(null,"Please enter the new movie's title");
String newStudio = JOptionPane.showInputDialog(null,"Please enter the studio for" + newTitle);
String newYear = JOptionPane.showInputDialog(null,"Please enter the year for" + newTitle);
 
//enlarge arrays
title = enlargeArray(title);
studio = enlargeArray(studio);
year = enlargeArray(year);
 
//add new data to arrays
title[title.length-1] = newTitle;
studio[studio.length-1] = newStudio;
year[year.length-1] = newYear;
 
//call sort method
sort(title);
fieldCombo.setSelectedIndex(0);
}
 
//user clicks title on the search submenu
if (arg == "title");
search(arg, title);
 
//user clicks studio on the search submenu
if (arg == "studio");
search(arg, studio);
 
//user clicks Year on the search submenu
if (arg == "year");
search(arg, year);
}
 
//method to enlarge an array by 1
public String[] enlargeArray(String[] currentArray)
{
String[] newArray = new String[currentArray.length + 1];
for (int i = 0; i<currentArray.length; i++)
newArray[i] = currentArray[i];
return newArray;
}
 
//method to sort arrays
public void sort(String tempArray[])
{
//loop to control number of passes
for (int pass = 1; pass < tempArray.length; pass++)
{
for (int element = 0; element < tempArray.length - 1; element++)
     if (tempArray[element].compareTo(tempArray[element + 1])>0)
     {
 swap(title, element, element + 1);
 swap(studio, element, element + 1);
 swap(year, element, element + 1);
 }
 }
 addTextToTextPane();
 }
 
 //method to swap two elements of an array
 public void swap(String swapArray[], int first, int second)
 {
 String hold;  //temporary holding area for swap
 hold = swapArray[first];
 swapArray[first] = swapArray[second];
 swapArray[second] = hold;
 }
 
 public void search(String searchField, String searchArray[])
 {
 try
 {
 Document doc = textPane.getDocument(); //assign text to document object
 doc.remove(0,doc.getLength()); //clear previous text
 
 //display column titles
 doc.insertString(0,"TITLE\tSTUDIO\tYEAR\n",textPane.getStyle("large"));
 
 //prompt user for search data
 String search = JOptionPane.showInputDialog(null, "Please enter the "+ searchField);
 boolean found = false;
 
 //search arrays
 for  (int i = 0; i<title.length; i++)
 {
 if (search.compareTo(searchArray[i])==0)
 {
doc.insertString(doc.getLength(), title[i] + "\t", textPane.getStyle("bold"));
doc.insertString(doc.getLength(), studio[i] +"\t", textPane.getStyle("italic"));
doc.insertString(doc.getLength(), year[i] + "\n", textPane.getStyle("regular"));
found = true;
}
}
if (found == false)
{
JOptionPane.showMessageDialog(null, "Your search produced no results.", "No results found",JOptionPane.INFORMATION_MESSAGE);
sort(title);
}
}
catch(BadLocationException ble)
{
System.err.println("Couldn't insert text.");
}
}
 
//main method executes at run time
public static void main(String args[])
{
 
JFrame.setDefaultLookAndFeelDecorated(true);
DVD f = new DVD();
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setJMenuBar(f.createMenuBar());
f.setContentPane(f.createContentPane());
f.setSize(600,375);
f.setVisible(true);
}
}
 

import java.awt.*;
import javax.swing.*;
 
public class SplashScreen extends JWindow
{
//private static FoodDailog dailog;
private int duration;
public SplashScreen(int d)
{
duration = d;
}
 
// A simple little method to show a title screen in the center
// of the screen for the amount of time given in the constructor
 
public void showSplash()
{
JPanel content = (JPanel)getContentPane();
content.setBackground(Color.blue);
 
// Set the window's bounds, centering the window
int width = 900;
int height =400;
Dimension screen = Toolkit.getDefaultToolkit().getScreenSize();
int x = (screen.width-width)/2;
int y = (screen.height-height)/2;
setBounds(x,y,width,height);
 
// Build the splash screen
JLabel label = new JLabel(new ImageIcon("computer.gif"));
JLabel copyrt = new JLabel
("CHARM FARM MANAGER", JLabel.CENTER);
copyrt.setFont(new Font("Sans-Serif", Font.BOLD, 36));
content.add(label, BorderLayout.CENTER);
content.add(copyrt, BorderLayout.SOUTH);
Color oraRed = new Color(156, 20, 20, 255);
content.setBorder(BorderFactory.createLineBorder(oraRed, 50));
 
// Display it
setVisible(true);
 
// Wait a little while, maybe while loading resources
try
{
Thread.sleep(duration);
}
catch (Exception e) {}
 
setVisible(false);
}
 
public void showSplashAndExit()
{
showSplash();
System.exit(0);
 
}
 
public static void main(String[] args)
{
// Throw a nice little title page up on the screen first
SplashScreen splash = new SplashScreen(10000);
 
// Normally, we'd call splash.showSplash() and get on with the program.
// But, since this is only a test...
splash.showSplashAndExit();
 

 
//splash
}
}
 

[Michael Dunn]

here's a very simple example of one of the ways
(I think java 1.6 has a splash screen class)

    
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
class MainFrame
{
  public void showSplash()
  {
    final JWindow window = new JWindow();
    window.getContentPane().setLayout(new GridBagLayout());
    JLabel label = new JLabel("Welcome.");
    label.setFont(label.getFont().deriveFont(18f));
    window.getContentPane().add(label,new GridBagConstraints());
    window.setSize(400,300);
    window.setLocationRelativeTo(null);
    window.setVisible(true);
    javax.swing.Timer timer = new javax.swing.Timer(5000,new ActionListener(){
      public void actionPerformed(ActionEvent ae){
        window.dispose();
        createAndShowGUI();
      }
    });
    timer.setRepeats(false);
    timer.start();
  }
  public void createAndShowGUI()
  {
    JFrame f = new JFrame("Main Frame");
    f.setSize(250,150);
    f.setLocationRelativeTo(null);
    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    f.setVisible(true);
  }
  public static void main(String[] args)
  {
    SwingUtilities.invokeLater(new Runnable(){
      public void run(){
        new MainFrame().showSplash();
      }
    });
  }
}

[Kendra Payne]

Thanks so much, would I just put the name of the program in place of the MainFrame?

[Kendra Payne]

I am sorry but I just don't understand how to put the two together.

[Michael Dunn]

in DVD() change
//public static void main(String args[])
to
public void createAndShowGUI()

in MainFrame.showSplash change
//createAndShowGUI();
to
new DVD().createAndShowGUI();

and it should work, but you may have a delay between the dispose and the gui
showing - experiment with creating the gui during the splash period, then
showing it when the timer fires.