JAVA CODE FOR RMI BOOKSHOP DETAIL

CREATE A  TABLE IN DB AS FOLLOWS:

================================

id,author,Bname,Price,stock => Columns

Then Please insert some sample values in this table.Then Use the following code

PROGRAM: (SERVER)

import java.rmi.*;

import java.rmi.registry.*;

import java.rmi.server.*;

import java.sql.*;

import java.io.*;

class buff implements Serializable

{

            public String a,bn;

public int price,id;

            public int  stock;

}

interface BDetail extends Remote

{

            public buff get(int id) throws RemoteException;

public void purch(int id) throws RemoteException;

}

public class Detail extends UnicastRemoteObject implements BDetail

{

            Connection con;

Statement st;

ResultSet rs;

public Detail() throws RemoteException

            {

 try

{

Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");

con = DriverManager.getConnection("jdbc:odbc:reservation");

st = con.createStatement();

}

catch(Exception e)

{

                        }

            }

public buff get(int id) throws RemoteException

            {

    buff o=new buff();

    int i=0;

                            try

                           {      

                                    rs=st.executeQuery("Select * from detail where id="+id);

                                    if(rs.next())

                                    {

                                                o.id=rs.getInt(1);

                                                o.a=rs.getString(2);

                                                o.bn=rs.getString(3);

                        o.price=rs.getInt(4);

                                                o.stock=rs.getInt(5);

                                    }

            else

                                    {

                        o.a="-----";

                                                o.bn="----";

           

                                    }

                              }

                              catch(Exception e)

                             {

                                    System.out.println(e);

                              }

      return o;    

              }

public void purch(int id) throws RemoteException

{

 try

{

                        rs=st.executeQuery("Select stock from detail where id="+id);

                        rs.next();

int stk=rs.getInt("stock");

if(stk==0)

{

            throw new Exception("No book in stock ID::"+id);

}

else

{

                                    stk--;

st.executeUpdate("update detail"+" "+"set "+"stock="+stk+" WHERE id="+id);

}

               }

               catch(Exception e)

               {

            System.out.println(e);

   }

        }

        public static void main(String[] x)throws Exception

       {

            Detail o=new Detail();

            Naming.rebind("book",o);

        }

  }

PROGRAM: (CLIENT)

import java.awt.*;

import java.awt.event.*;

import javax.swing.*;

import java.rmi.*;

import java.rmi.registry.*;

interface BDetail extends Remote

  {

     public buff get(int id) throws RemoteException;

     public void purch(int id) throws RemoteException;

}

class BookShop extends JFrame implements ActionListener

 {

   JLabel ttl;

   JButton b1,b2,b3;

   JTextField t1,tt1,tt2,tt3,tt4,tt5;

   JLabel l1,id,auth,title,stock,price;

   JPanel p,p1,p2,p3;

   Container c;

   BDetail m1;

   BookShop()

   {

           super("BOOK SHOP");

           try

          {

   m1=(BDetail)Naming.lookup("rmi://Localhost/book");

   c=this.getContentPane();

   p=new JPanel();

   p1=new JPanel();

   p2=new JPanel();

   p3=new JPanel();

   p2.setLayout(new GridLayout(6,5));

   ttl=new JLabel("BOOK SHOP");

   ttl.setFont(new Font("Ariel", Font.BOLD, 20));

   p.add(ttl);

   add(p,"North");

   l1=new JLabel("ID::");

   t1=new JTextField(3);

   b1=new JButton("Submit");

   b2=new JButton("Clear");

   p1.add(l1);

   p1.add(t1);

   p1.add(b1);

   p1.add(b2);

  c.add(p1,"East");

  c.add(new JPanel(),"West");

  id=new JLabel("ID");

  title=new JLabel("TITlE");

  stock=new JLabel("STOCK");

  auth=new JLabel("AUTHOR");

  price=new JLabel("PRICE");

  tt1=new JTextField(3);

  tt1.setEditable(false);

  tt2=new JTextField(21);

 tt2.setEditable(false);

 tt3=new JTextField(21);

 tt3.setEditable(false);

 tt4=new JTextField(21);

tt4.setEditable(false);

tt5=new JTextField(21);

tt5.setEditable(false);

b3=new JButton("Purchase");

p2.add(id);

p2.add(tt1);

p2.add(auth);

p2.add(tt2);

p2.add(title);

p2.add(tt3);

p2.add(stock);

p2.add(tt4);

p2.add(price);

p2.add(tt5);

c.add(p2,"Center");

p3.add(b3);

c.add(p3,"South");

b1.addActionListener(this);

b2.addActionListener(this);

b3.addActionListener(this);

addWindowListener(new WindowAdapter( )

 {

        public void windowClosing(WindowEvent e)

        {

                        System.exit(0);

         }

  }                         

  }

catch(Exception ff){ }

  }

public void actionPerformed(ActionEvent e)

{

  try

   {

if(e.getActionCommand()=="Submit")

{

    buff o=m1.get(Integer.parseInt(t1.getText()));

    tt1.setText(""+o.id);

    tt2.setText(o.a);

    tt3.setText(o.bn);

    tt4.setText(""+o.stock);

    tt5.setText(""+o.price);

}

if(e.getActionCommand()=="Clear")

{

   t1.setText("");

}

  if(e.getActionCommand()=="Purchase")

{

   int n=Integer.parseInt(t1.getText());

   m1.purch(n);

   buff o=m1.get(n);

 

   tt1.setText(""+o.id);

   tt2.setText(o.a);

   tt3.setText(o.bn);

   tt4.setText(""+o.stock);

   tt5.setText(""+o.price);

 }

    }

 catch(Exception d)

{

   System.out.println(d);

  }

     }

public static void main(String[] a)

{

  BookShop o=new BookShop();

  o.setVisible(true);

  o.setSize(900,100);

  o.pack();

   }

}

JAVA CODE FOR FILTER STREAM-STUDENT MARKLIST

PROGRAM:

import java.io.*;

class Studentmarklist1

{

            public static void main(String a[]) throws IOException

            {

                        DataInputStream d=new DataInputStream(System.in);

System.out.println("\nEnter the Name,Rollno and Mark1,Mark2,Mark3,Mark4,Mark5::");

                        String name=d.readLine();

                        int no=Integer.parseInt(d.readLine());

                        int m1=Integer.parseInt(d.readLine());

                        int m2=Integer.parseInt(d.readLine());

                        int m3=Integer.parseInt(d.readLine());

                        int m4=Integer.parseInt(d.readLine());

                        int m5=Integer.parseInt(d.readLine());

                        int tot=(m1+m2+m3+m4+m5);

                        float  avg=tot/5;

                        System.out.println("\nName:="+name);

                        System.out.println("Rollno:="+no);

                        System.out.println("Mark1:="+m1);

                        System.out.println("Mark2:="+m2);

                        System.out.println("Mark3:="+m3);

                        System.out.println("Mark4:="+m4);

                        System.out.println("Mark5:="+m5);

                        System.out.println("Total:="+tot);

                        System.out.println("Average:="+avg);

if((m1&m2&m3&m4&m5)>40)

                        {

                                    System.out.println("Result=Pass");

                        }

                        else

                        {

                                    System.out.println("Result=Fail");

                        }

                        if(avg>=90.0)

                        {

                                    System.out.println("Grade=Outstanding!");

                        }

                        if(avg>=70.5&avg<=90.0)

                        {

          

System.out.println("Grade=First Class");

                        }

                        if(avg>=60.0&avg<=70.5)

                        {

            System.out.println("Grade=Second Class");

                        }

                        if(avg>50.0&avg<60.0)

                        {

            System.out.println("Grade=Third Class");

                        }

                        if(avg<50.0)

                        {

           System.out.println("Grade=No Class");

                        }

            FileOutputStream fos=new FileOutputStream("Stud.txt");

DataOutputStream dos=new DataOutputStream(fos);

dos.writeUTF(name);

dos.writeInt(no);

dos.writeInt(m1);

dos.writeInt(m2);

dos.writeInt(m3);

dos.writeInt(m4);

dos.writeInt(m5);

dos.writeInt(tot);

dos.writeFloat(avg);

            }

 }

OUTPUT:

Enter the Name,Rollno and Mark1,Mark2,Mark3,Mark4,Mark5::

MARTIN

101

98

92

91

90

87

Name:=MARTIN

Rollno:=101

Mark1:=98

Mark2:=92

Mark3:=91

Mark4:=90

Mark5:=87

Total:=458

Average:=91.6

Result=Pass

Grade=Outstanding!

JAVA CODE FOR STREAM CUSTOMIZATION-COUNT READER

PROGRAM:

import java.io.*;

public class Streamcustomization extends Reader

{

            Reader in=null;

int  read=0,charCount=0,wordCount=0,lineCount=0;

            boolean whiteSpace=true;

            public void CountReader(Reader r)

            {

                        in=r;

            }

            public int read(char[]array,int off,int len)throws IOException

            {

                        if(array==null)

                        throw new IOException("null array");

                        read=in.read(array,off,len);

                        charCount+=read;

                        char c;

                        for(int i=0;i<read;i++)

                        {

                                    c=array[i];

                                    if(c=='\n')

                                    lineCount++;

                                    if(Character.isWhitespace(c))

                                                whiteSpace=true;

                                    else if(Character.isLetterOrDigit(c) && whiteSpace)

                                    {

                        wordCount++;

                        whiteSpace=false;

                                    }

                        }

                        return read;

            }

            public void close() throws IOException

            {

                        in.close();

            }

            public int getCharCount()

            {

                        return charCount;

            }

           

public int getWordCount()

            {

return wordCount;

            }

            public int getLineCount()

            {

                        return lineCount;

            }

            public static void main(String a[]) throws Exception

            {

                        CountReader cr=new CountReader(new FileReader("lab.java"));

                        char c[]=new char[4096];

                        int read=0;

                        while((read=cr.read(c,0,c.length))!=-1)

                        System.out.println(new String(c,0,read));

                        cr.close();

System.out.println("\n\n Read chars:"+cr.getCharCount()+"\n words:"+cr.getWordCount()+"\n lines:"+cr.getLineCount());

            }

 }

OUTPUT:

class lab

{

public static void main(String args[])

{

System.out.println("welcome to MCA lab");

}

}

 Read chars:18

 words:4

 lines:1

JAVA CODE FOR TCP CHAT APPLICATION

PROGRAM: (SERVER)

import java.io.*;

import java.net.*;

class ChatS

{

public static void main(String args[])throws IOException

{

ServerSocket s=new ServerSocket(3300);

Socket s1=s.accept();

for(;;)

{

DataInputStream d1=new DataInputStream(s1.getInputStream());

String s2=d1.readUTF();

System.out.println("client:"+s2);

DataInputStream b=new DataInputStream(System.in);

String s3=b.readLine();

DataOutputStream d3=new DataOutputStream(s1.getOutputStream());

System.out.print(“server: “);

d3.writeUTF(s3);

}  

}  

}

PROGRAM: (CLIENT)

import java.io.*;

import java.net.*;

class ChatC

{

public static void main(String args[])throws IOException

{

Socket s1=new Socket("127.0.0.1",3300);

for(;;)

{

DataInputStream dis=new DataInputStream(System.in);

String str=dis.readLine();

DataOutputStream ds=new DataOutputStream(s1.getOutputStream());

System.out.print(“client: “);

ds.writeUTF(str);

DataInputStream d1=new DataInputStream(s1.getInputStream());

String Str1=d1.readLine();

System.out.println("server:"+Str1);    

}   

}  

}

OUTPUT: (CLIENT)

client: Hai

From server:How are you

client: fine

OUTPUT: (SERVER)

From client:Hai

server: How are you

From client: fine

JAVA CODE FOR THREE-TIER APPLICATION: ADDRESS SEARCH

CREATE A  TABLE IN DB AS FOLLOWS:

================================

PID => NUMBER

NAME =>  TEXT

ADDRESS =>  TEXT

CITY  => TEXT

PHONE NO =>  NUMBER

Then Please insert some sample values in this table.Then Use the following code

FRONT PAGE PROGRAM USING HTML:

<html >

<head>

<title>WELCOME TO ADDRESS SEARCH</title>

</head>

<body bgcolor="cyan">

<h1> Welcome to address search</h1>

<form  name="form1" method="get" action="http://localhost:8080/servlet/address">

<input type="text" name="teln" />

<input type="submit"  value="Submit" />

</form>  

</body>

</html>                      

PROGRAM:

import java.sql.*;

import java.io.*;

import javax.servlet.*;

import javax.servlet.http.*;

public class Example extends HttpServlet

  {

  public void doGet(HttpServletRequest req,HttpServletResponse res)throws     ServletException,IOException

{

             res.setContentType("text/html");

            PrintWriter out=res.getWriter();

String n=req.getParameter("teln");

int nn=Integer.parseInt(n);

try

            {

            Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");

    Connection c=DriverManager.getConnection("jdbc:odbc:xxx");

    Statement s=c.createStatement();

    String  str="select * from address where telno="+nn;

    ResultSet r=s.executeQuery(str);

   while(r.next())

{

int id1=r.getInt(1);

String name1=r.getString(2);

String add1=r.getString(3);

String city1=r.getString(4);

int no1=r.getInt(5);

//output page

out.println(“<html ><head><title>WELCOME TO ADDRESS SEARCH</title></head>”);

out.println(“<body><h1> WELCOME TO ADDRESS SEARCH<BR><BR><BR><BR>”);

out.println(“<table WIDTH="100%" CELLPADDING="2"                       CELLSPACING="2" bgcolor=CYAN align="center" BORDER="3">”);

out.println(“<tr><FONT SIZE=32><TH> ID </TH><TH>   NAME</TH> <TH> ADDRESS</TH><TH> CITY </TH><TH> PHONE NO</TH> </TR>”);

      out.println(“<tr><td>”+id1+”<td>”+name1+”<td>”+add1+”<td>”+city1+”<td>”+no1+”</tr>”);

out.println(“</table></body></html>”);

}

       }

catch(Exception e)

{

out.println(e);

}

      }

}