sampledesktop13.java

《JBuilder编程技术与实例》（2006 四维科技 人民邮电）赠送代码——图书馆管理系统

f1.pack();



}
 	      }
 	   }
 	);

 pix1.removeAll();
pix11.removeAll();
pix12.removeAll();


pix1.setLayout(new GridLayout());

 pix11.setLayout(new BoxLayout(pix11,BoxLayout.PAGE_AXIS));
pix11.add(createEntryFields(labelStrings));
pix11.add(createButtons("Issue","Cancel"));

pix12.setLayout(new GridBagLayout());
GridBagConstraints c = new GridBagConstraints();
c.fill = GridBagConstraints.HORIZONTAL;

c.weightx = 0.5;
c.gridx = 0;
c.gridy = 0;


pix12.add(addradiobutton(),c);


c.ipady = 30;      //make this component tall
c.weightx = 0.0;
c.gridwidth = 3;
c.gridx = 0;
c.gridy = 1;


//listModel.clear();
pix12.add(drawlist(),c);
changelist("allbooks.txt");
listboxno=0;
 id= gcal.get(Calendar.DATE);
 im=(int)gcal.get(Calendar.MONTH)+1;
 iy=gcal.get(Calendar.YEAR);


idate=id+"/"+im+"/"+iy;

 nameField[3].setText(idate);
  nameField[3].setEditable(false);
  returndate();

pix1.add(pix11);
pix1.add(pix12);
f1.pack();




           f1.getContentPane().add(fpane);

          JDesktopPane desktop = new JDesktopPane();
        desktop.add(f1);

desk.add(f1);

f1.setVisible(true);
//f1.pack();
return f1;
}

//libary record upto here

//Issueing a book

private void Issue(){
String isbn1=nameField[2].getText();



fileopen("srecord.txt");

try{
number=nameField[1].getText();
String ert=(String)ht.get(number);
ht.clear();
insertroll(number,"irollno.txt");

if(ert.length()>1){

doi=nameField[3].getText();
dor=nameField[4].getText();

String tmp=isbn1+"#"+doi+"#"+dor;
ht1.clear();
fileopen1("issuedbook.txt");
ht1.put(number,tmp);
writetofile1("issuedbook.txt");
JOptionPane.showMessageDialog( hide,"One Book Issued");

}
}catch(NullPointerException e){
JOptionPane.showMessageDialog( hide,"Sorry u R Not A Student");}
}


protected void writetofile1(String s){
try{

File f=new File(s);
f.delete();
FileOutputStream fout = new FileOutputStream(s,true) ;
ht1.store(fout,"Prosun's creation");

fout.close();
}catch(IOException e){}

}


//book issue upto here

//return a book

private void  Returnbook(){
comparedate();

fileopen("issuedbook.txt");
deletearecord("issuedbook.txt",newSelection);
deletefromsuppotedfile("irollno.txt",newSelection);


JOptionPane.showMessageDialog( hide,"One Book Returned");
ht.clear();
}

//function for deleting a record from file

private void deletearecord(String fn,String key){

File f=new File(fn);
f.delete();
try{
FileOutputStream fout = new FileOutputStream(fn,true);
ht.remove(key);
ht.store(fout,"Prosun's creation");
fout.close();
}catch(IOException e){}

ht.clear();

}

//function for deleting a record from file upto here

//book return upto here

//delete book from libary
private void Deletebook(){
String sd=nameField[0].getText();
fileopen("books.txt");
deletearecord("books.txt",sd);
deletefromsuppotedfile("cbooks.txt",sd);
deletefromsuppotedfile("javabooks.txt",sd);
deletefromsuppotedfile("vbbooks.txt",sd);
deletefromsuppotedfile("allbooks.txt",sd);

}

//delete book from libary upto here


/////////////////Delete Book no from Supporting files////////////////

private void deletefromsuppotedfile(String fn,String key){

try
		{
	DataInputStream	readFile = new DataInputStream(new FileInputStream(fn));
	String rec = readFile.readLine();
	String rolllist=null;

DataOutputStream writeFile1 = new DataOutputStream(new                           FileOutputStream("temp1.txt",true));




			while(rec != null)
			{
				StringTokenizer st = new StringTokenizer(rec,"#");
				while(st.hasMoreTokens())
				{

                                         String n=st.nextToken();
                                         rec = readFile.readLine();
                                         if(!n.equals(key)){
             //writimg to a tempfile
                                            writeFile1.writeBytes(n+"#");
                                     }

				}
				readFile.close();
                               writeFile1.close();
			}


                   filecopy("temp1.txt",fn);



		}
		catch(Exception e)
		{
			e.printStackTrace();
		}


}
////////////////////////upto here///////////////////////////////////////



private  void comparedate(){
String sr=nameField[3].getText();
int rd,rm,ry;
StringTokenizer st = new StringTokenizer(sr,"/");
rd=Integer.parseInt(st.nextToken());
rm=Integer.parseInt(st.nextToken());
ry=Integer.parseInt(st.nextToken());
if(iy>ry){
JOptionPane.showMessageDialog( hide,"You Must Give Fine For Delay");
}else{
if(im>rm){
JOptionPane.showMessageDialog( hide,"You Must Give Fine For Delay");}
else{
if(id>rd)
JOptionPane.showMessageDialog( hide,"You Must Give Fine For Delay");}
}
}

private void returndate(){

im1=im;
iy1=iy;
id1=id+15;

if(im1==1||im1==3||im1==5||im1==7||im1==8||im1==10||im1==12){
if(id1>31){
im1=im1+1;
id1=id1-31;
if(im1>12){
im1=im1-12;
iy1=iy1+1;
}}}


if(im1==4||im1==6||im1==9||im1==11){
if(id1>30){
im1=im1+1;
id1=id1-30;
if(im1>12){
im1=im1-12;
iy1=iy1+1;}
}}


if(im1==2){
if(id1>28){
im1=im1+1;
id1=id1-28;
if(im1>12){
im1=im1-12;
iy1=iy1+1;
}}}

rdate = id1+"/"+im1+"/"+iy1;
  nameField[4].setEditable(true);
nameField[4].setText(rdate);
  nameField[4].setEditable(false);

}

private JPanel addradiobutton(){

  JPanel pix12= new JPanel();
String allString= "All";
   String javaString= "Java";
   String cString= "C";
  String vbString= "Vb";




 allButton = (JRadioButton) pix12.add(new JRadioButton(allString));
    allButton.setActionCommand(allString);
    allButton.setSelected(true);

     javaButton =(JRadioButton) pix12.add( new JRadioButton(javaString));

    javaButton.setActionCommand(javaString);

     cButton =(JRadioButton) pix12.add( new JRadioButton(cString));

    cButton.setActionCommand(cString);

     vbButton =(JRadioButton) pix12.add( new JRadioButton(vbString));

    vbButton.setActionCommand(vbString);



    //Group the radio buttons.
    ButtonGroup group = new ButtonGroup();
    group.add(allButton);
    group.add(javaButton);
    group.add(cButton);
    group.add(vbButton);




    //Register a listener for the radio buttons.
    allButton.addActionListener(this);
    javaButton.addActionListener(this);
    cButton.addActionListener(this);
    vbButton.addActionListener(this);



return pix12;


}

private JPanel drawlist() {




listModel.addElement("prosun");
   count++;

 //Create the list and put it in a scroll pane.

        list = new JList(listModel);
        list.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
        list.setSelectedIndex(0);
        list.addListSelectionListener(this);
        list.setVisibleRowCount(5);
        JScrollPane listScrollPane = new JScrollPane(list);


String name = listModel.getElementAt(
                              list.getSelectedIndex()).toString();

        //Create a panel that uses BoxLayout.
        JPanel buttonPane = new JPanel();
        buttonPane.setLayout(new BoxLayout(buttonPane,
                                           BoxLayout.LINE_AXIS));

buttonPane.add(Box.createHorizontalStrut(5));
        //buttonPane.add(new JSeparator(SwingConstants.HORIZONTAL));
        buttonPane.add(Box.createHorizontalStrut(5));



buttonPane.setBorder(BorderFactory.createEmptyBorder(5,5,5,5));

buttonPane.add(listScrollPane, BorderLayout.CENTER);




return buttonPane;
}





private void Addbook(){
fileopen("books.txt");
bname=nameField[0].getText();
isbn=nameField[1].getText();
booktype=nameField[2].getText();
author=nameField[3].getText();
edition=nameField[4].getText();

booksum=bname+"#"+author+"#"+edition;
ht.put(isbn,booksum);
writetofile("books.txt");


try{
DataOutputStream writeFile2 = new DataOutputStream(new                           FileOutputStream("allbooks.txt",true));    writeFile2.writeBytes(isbn+"#");
writeFile2.close();
}catch(IOException e){}




if(booktype.equals("c")){
try{
DataOutputStream writeFile1 = new DataOutputStream(new                           FileOutputStream("cbooks.txt",true));    writeFile1.writeBytes(isbn+"#");
writeFile1.close();
}catch(IOException e){}
}


if(booktype.equals("vb")){
try{
DataOutputStream writeFile1 = new DataOutputStream(new                           FileOutputStream("vbbooks.txt",true));    writeFile1.writeBytes(isbn+"#");
writeFile1.close();
}catch(IOException e){}
}

if(booktype.equals("java")){
try{
DataOutputStream writeFile1 = new DataOutputStream(new                           FileOutputStream("javabooks.txt",true));    writeFile1.writeBytes(isbn+"#");
writeFile1.close();
}catch(IOException e){}
}

}


private JInternalFrame newFile(){
final JInternalFrame f = new JInternalFrame ("Test",false,true,false,true);
	int width=Toolkit.getDefaultToolkit().getScreenSize().width;
       	int height=Toolkit.getDefaultToolkit().getScreenSize().height;
       	f.setBounds( 0, 0, width-10, height - 80 );
       	f.setTitle("All Fields Regarding Students..");



final JTabbedPane  fpane =  new JTabbedPane(SwingConstants.TOP);


final JPanel pix1 = new JPanel();
final JPanel pix2 = new JPanel();
final JPanel pix3 = new JPanel();
final JPanel pix4 = new JPanel();


getContentPane().setLayout(new SpringLayout());

fpane.addTab("Add",pix1);
fpane.addTab("Update",pix2);
fpane.addTab("Search",pix3);
fpane.addTab("Delete",pix4);
fpane.setSelectedIndex(0);

final String[] labelStrings = {
            "Name : ",
            "Father Name: ","Roll No :",
            "Address: ","Qualification :",
            "E_Mail: ","Tele Ph :"
        };

final String[] labelStrings1 = {
            "Name : ",
            "Father Name: ",
            "Address: ","Qualification :",
            "E_Mail: ","Tele Ph :"
        };



fpane.getModel().addChangeListener(
 	   new ChangeListener() {
 	      public void stateChanged(ChangeEvent e) {
 		  SingleSelectionModel model = (SingleSelectionModel) e.getSource();
 		  if(model.getSelectedIndex() == fpane.getTabCount()-1) {
                   tabIndex=4;
                   wcoboxchange=0;
                   pix4.removeAll();
                  pix4.setLayout(new BoxLayout(pix4,BoxLayout.PAGE_AXIS));
pix4.add(createcombo(0));
pix4.add(createEntryFields(labelStrings1));
pix4.add(createButtons("Delete","Cancel"));


 		  }

if(model.getSelectedIndex() == fpane.getTabCount()-2) {

pix3.removeAll();
                   wcoboxchange=0;
pix3.setLayout(new BoxLayout(pix3,BoxLayout.PAGE_AXIS));
pix3.add(createcombo(0));
pix3.add(createEntryFields(labelStrings1));
pix3.add(createButtons("Finished","Cancel"));
tabIndex=3;
}
if(model.getSelectedIndex() == fpane.getTabCount()-3) {
                   wcoboxchange=0;
pix2.removeAll();
pix2.setLayout(new BoxLayout(pix2,BoxLayout.PAGE_AXIS));
pix2.add(createcombo(0));
pix2.add(createEntryFields(labelStrings1));
pix2.add(createButtons("Update","Cancel"));
tabIndex=2;

}
if(model.getSelectedIndex() == fpane.getTabCount()-4) {
                   wcoboxchange=0;
tabIndex=1;
  pix1.removeAll();
 pix1.setLayout(new BoxLayout(pix1,BoxLayout.PAGE_AXIS));

pix1.add(createEntryFields(labelStrings));
pix1.add(createButtons("OK","Cancel"));


}
 	      }
 	   }
 	);



pix1.setLayout(new BoxLayout(pix1,BoxLayout.PAGE_AXIS));

pix1.add(createEntryFields(labelStrings));
pix1.add(createButtons("OK","Cancel"));



        f.getContentPane().add(fpane);

          JDesktopPane desktop = new JDesktopPane();
        desktop.add(f);

desk.add(f);
f.setLocation(100,75);
f.setVisible(true);
return f;
}


//trying from downloded code


    public JFormattedTextField getTextField(JSpinner spinner) {