Untitled

// Practical (Traffic Complaint Website)

index.html page

<html>
    <head>
        <title>TODO supply a title</title>
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
    </head>
    <body>
        <form action="insert">
            Vehicle Number : <input type="text" name="vname">
            Complaint : <input type ="text" name="vcom">
            Name : <input type="text" name="naam">
            <input type="submit">
        </form>
    </body>
</html>


view.html page

<html>
    <head>
        <title>TODO supply a title</title>
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
    </head>
    <body>
        <form action="view">
            Enter Number : <input type="text" name="vnum">
            <input type="submit">
        </form>
    </body>
</html>


insert.java file

public class insert extends HttpServlet {
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        try (PrintWriter out = response.getWriter()) {

            //Initializing Variable for Storing Data
            String vehicle = request.getParameter("vname");
            String com = request.getParameter("vcom");
            String naam = request.getParameter("naam");

            //Connection of Database
            String dsn = "jdbc:derby://localhost:1527/Traffic";
            String user = "root";
            String pass = "root";

            try{
                Connection c = DriverManager.getConnection(dsn, user, pass);

                //Query
                String sql = "Insert into Vehicle values('"+vehicle+"','"+com+"','"+naam+"')";
                Statement s = c.createStatement();
                s.executeUpdate(sql);
            }catch(Exception e){
                System.out.println(e);
            }


            out.println("<!DOCTYPE html>");
            out.println("<html>");
            out.println("<head>");
            out.println("<title>Servlet insert</title>");
            out.println("</head>");
            out.println("<body>");
            out.println("<h1>Data Inserted</h1>");
            out.println("</body>");
            out.println("</html>");
        }
    }


view.java File

public class view extends HttpServlet {
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        try (PrintWriter out = response.getWriter()) {

            //Initialize Variable to store data
            String vehiclenum = request.getParameter("vnum");

            //Conntecting to Database
            String dsn = "jdbc:derby://localhost:1527/Traffic";
            String user = "root";
            String pass = "root";

            try{
                Connection c = DriverManager.getConnection(dsn,user,pass);

                //Select Vehicle,Complaint,Name from Vehicle where Vehicle="vehiclenum"
                String sql = "Select Vehicle,Complaint,Name from Vehicle where Vehicle='"+vehiclenum+"'";

                Statement s = c.createStatement();
                ResultSet rs = s.executeQuery(sql);
                rs.next();

                String vnum = rs.getString("Vehicle");
                String comp = rs.getString("Complaint");
                String name = rs.getString("Name");

                //Response
                  out.println("<!DOCTYPE html>");
                  out.println("<html>");
                  out.println("<head>");
                  out.println("<title>Servlet view</title>");
                  out.println("</head>");
                  out.println("<body>");
                  out.println("<h2>"+vnum+ " "+comp+ " "+name+"</h2>");
                  out.println("</body>");
                  out.println("</html>");
            }
            catch(Exception e){System.out.println(e);}
        }


//Practical (Train Application InterThread Communication)

platform.java File

public class platform {
    boolean order = false;
    synchronized void green(){
        try{
            if(order){
                order = false;
                System.out.println("Train left the Platform");
                notify();
            }
            else{
                System.out.println("Train Coming,Platform Signal (Green)");
                wait();
            }
        }catch(Exception e){}
    }
    synchronized void red(){
        try{
            if(!order){
                order = true;
                System.out.println("Train on Platform,Platform Signal (Red)");
                notify();
            }
            else{
                System.out.println("Train still on Platform");
                wait();
            }
        }catch(Exception e){}
        }
}

train1.java File

public class train1 extends Thread {
    platform p;
    train1(platform b){
        p=b;
    }
    public void run(){
        for (int j=1;j<10;j++){
            p.red();
        }
    }
}


train2.java File

public class train2 extends Thread {
    platform p;
    train2(platform a){
        p=a;
    }
    public void run(){
        for(int j=1;j<10;j++){
            p.green();
        }
    }

}


signal.java File

public class signal {
    public static void main(String[]args){
        platform ob1 = new platform();
        train1 ob2 = new train1(ob1);
        train2 ob3 = new train2(ob1);
        ob3.start();
        ob2.start();
    }
}


//Practical  Calculator (Web Application)

Calculator.java jFrameform file

 String a = jTextField1.getText();
        String b = jTextField2.getText();

        float num1 = Float.parseFloat(a);
        float num2 = Float.parseFloat(b);
        float result = (num1+num2);

        jTextField3.setText(String.format("%.2f", result));


//Practical Chat Application

1)Client Window

#Client Send

        try{
            Socket s = new Socket("localhost",2000);
            DataOutputStream os = new DataOutputStream(s.getOutputStream());
            String data = jTextField1.getText();
            os.writeUTF(data);
        }catch(Exception e){System.out.println(e);}

#Client Receive

        try{
            Socket s = new Socket("localhost",2000);
            DataInputStream is = new DataInputStream(s.getInputStream());
            String msg = is.readUTF();
            jTextField1.setText(msg);
        }catch(Exception e){System.out.println(e);}


#Client Quit

System.exit(0);

2)Server Window

#Server Send

      try{
          ServerSocket ss = new ServerSocket(2000);
          Socket s = ss.accept();
          DataOutputStream os = new DataOutputStream(s.getOutputStream());
          String data = jTextField1.getText();
          os.writeUTF(data);
      }catch(Exception e){System.out.println(e);}

#Server Receieve

        try{
            ServerSocket ss = new ServerSocket(2000);
            Socket s = ss.accept();
            DataInputStream is = new DataInputStream(s.getInputStream());
            String msg = is.readUTF();
            jTextField1.setText(msg);
        }catch(Exception e){System.out.println(e);}

#Server Quit

System.exit(0);


//Practical Table jsp file

index.html

<html>
    <head>
        <title>TODO supply a title</title>
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
    </head>
    <body>
        <form action="table.jsp">
            Enter Number : <input type="text" name="number">
            <input type="submit">
        </form>
    </body>
</html>


table.jsp

<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
        <title>JSP Page</title>
    </head>
    <body>
        <table border="1">

        <%
            String n = request.getParameter("number");
            int num = Integer.parseInt(n);

            //Down
            for(int i=1;i<=10;i++){
                //Forward
                out.println("<tr>");
                for(int j=1;j<=num;j++){
                    out.println("<td>" +(i*j)+ "</td>");
                }
                out.println("</tr>");
            }
        %>

        </table>
        </body>
</html>


//Practical (Train Platform)

platform.java file

public class platform {
    boolean order = false;
    synchronized void green(){
        try{
            if(order){
                order = false;
                System.out.println("Train left the Platform");
                notify();
            }
            else{
                System.out.println("Train Coming,Platform Signal (Green)");
                wait();
            }
        }catch(Exception e){}
    }
    synchronized void red(){
        try{
            if(!order){
                order = true;
                System.out.println("Train on Platform,Platform Signal (Red)");
                notify();
            }
            else{
                System.out.println("Train still on Platform");
                wait();
            }
        }catch(Exception e){}
        }
}


train1.java file

public class train1 extends Thread {
    platform p;
    train1(platform b){
        p=b;
    }
    public void run(){
        for (int j=1;j<10;j++){
            p.red();
        }
    }
}


train2.java file

public class train2 extends Thread {
    platform p;
    train2(platform a){
        p=a;
    }
    public void run(){
        for(int j=1;j<10;j++){
            p.green();
        }
    }

}

signal.java File

public class signal {
    public static void main(String[]args){
        platform ob1 = new platform();
        train1 ob2 = new train1(ob1);
        train2 ob3 = new train2(ob1);
        ob3.start();
        ob2.start();
    }
}