Unit No. 1
Fundamentals of Programming
Unit No. 2
Structuring The data, Computations and Program
Unit No. 3
Java as Object Oriented Programming Language- Overview
Unit No. 4
Inheritance, Packages and Exception Handling using Java
Unit No. 5
Multithreading in Java
Unit No. 6
Logical and Functional Programming
Fig: OSPF Protocol Configuration
OSPF Router 0 Configuration
Router>enable
Router#configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#interface FastEthernet0/0
Router(config-if)#ip address 192.168.1.1 255.255.255.0
Router(config-if)#no shutdown
Router(config-if)#
%LINK-5-CHANGED: Interface FastEthernet0/0, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to up
Router(config-if)#exit
Router(config)#interface Serial2/0
Router(config-if)#ip address 10.10.0.2 255.0.0.0
Router(config-if)#clock rate 64000
Router(config-if)#
Router(config-if)#exit
Router(config)#interface Serial3/0
Router(config-if)#ip address 12.12.0.2 255.0.0.0
Router(config-if)#clock rate 64000
Router(config-if)#no shutdown
%LINK-5-CHANGED: Interface Serial3/0, changed state to down
Router(config-if)#
%LINK-5-CHANGED: Interface Serial3/0, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial3/0, changed state to up
Router(config-if)#exit
Router(config)#interface Serial2/0
Router(config-if)#no shutdown
Router(config-if)#
%LINK-5-CHANGED: Interface Serial2/0, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial2/0, changed state to up
exit
Router(config)#router ospf 1
Router(config-router)#network 192.168.1.0 0.0.0.255 area 0
Router(config-router)#network 10.0.0.0 0.255.255.255 area 0
Router(config-router)#network 12.0.0.0 0.255.255.255 area 0
Router(config-router)#exi
Router(config)#exit
Router#
%SYS-5-CONFIG_I: Configured from console by console
00:08:39: %OSPF-5-ADJCHG: Process 1, Nbr 11.11.0.2 on Serial2/0 from LOADING to FULL, Loading Done
00:09:57: %OSPF-5-ADJCHG: Process 1, Nbr 192.168.2.1 on Serial3/0 from LOADING to FULL, Loading Done
OSPF Router 1 configuration
outer>enable
Router#configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#interface Serial2/0
Router(config-if)#ip address 10.10.0.3 255.0.0.0
Router(config-if)#no shutdown
%LINK-5-CHANGED: Interface Serial2/0, changed state to down
Router(config-if)#
Router(config-if)#exit
Router(config)#interface Serial3/0
Router(config-if)#ip address 11.11.0.2 255.0.0.0
Router(config-if)#clock rate 64000
Router(config-if)#no shutdown
%LINK-5-CHANGED: Interface Serial3/0, changed state to down
Router(config-if)#
Router(config-if)#exit
Router(config)#interface Serial2/0
Router(config-if)#
Router(config-if)#exit
Router(config)#interface Serial3/0
Router(config-if)#
%LINK-5-CHANGED: Interface Serial3/0, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial3/0, changed state to up
Router(config-if)#exit
Router(config)#interface Serial2/0
Router(config-if)#
%LINK-5-CHANGED: Interface Serial2/0, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial2/0, changed state to up
exit
Router(config)#router ospf 1
Router(config-router)#network 10.0.0.0 0.255.255.255 area 0
Router(config-router)#network 10.0.0.0 0.255.255.255 area 0
00:08:37: %OSPF-5-ADJCHG: Process 1, Nbr 192.168.1.1 on Serial2/0 from LOADING to FULL, Loading Done
Router(config-router)#network 11.0.0.0 0.255.255.255 area 0
Router(config-router)#exit
Router(config)#
00:09:38: %OSPF-5-ADJCHG: Process 1, Nbr 192.168.2.1 on Serial3/0 from LOADING to FULL, Loading Done
OSPF Router 2 configuration
Router>enable
Router#configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#interface FastEthernet0/0
Router(config-if)#ip address 192.168.2.1 255.255.255.0
Router(config-if)#no shutdown
Router(config-if)#
%LINK-5-CHANGED: Interface FastEthernet0/0, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to up
Router(config-if)#exit
Router(config)#interface Serial2/0
Router(config-if)#ip address 11.11.0.3 255.0.0.0
Router(config-if)#no shutdown
Router(config-if)#
%LINK-5-CHANGED: Interface Serial2/0, changed state to up
Router(config-if)#exit
Router(config)#interface Serial3/0
Router(config-if)#
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial2/0, changed state to up
ip address 12.12.0.3 255.0.0.0
Router(config-if)#no shutdown
Router(config-if)#
%LINK-5-CHANGED: Interface Serial3/0, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial3/0, changed state to up
exit
Router(config)#router ospf 1
Router(config-router)#network 192.168.2.0 0.0.0.255 area 0
Router(config-router)#network 11.0.0.0 0.255.255.255 area 0
Router(config-router)#network 11.0.0.0 0.255.255.255 area 0
00:09:36: %OSPF-5-ADJCHG: Process 1, Nbr 11.11.0.2 on Serial2/0 from LOADING to FULL, Loading Done
Router(config-router)#network 12.0.0.0 0.255.255.255 area 0
Router(config-router)#exit
Router(config)#
00:09:53: %OSPF-5-ADJCHG: Process 1, Nbr 192.168.1.1 on Serial3/0 from LOADING to FULL, Loading Done
Multi user Chat
Client.java
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.DatagramPacket;
import java.net.InetAddress;
import java.net.MulticastSocket;
import java.net.SocketException;
import java.net.UnknownHostException;
public class Client implements Runnable
{
static MulticastSocket clientSocket ;
static byte[] recvData = new byte[1024];
static String getsen=”hmmm”;
static boolean send_flag=false;
public static void main(String[] args)
{
// TODO Auto-generated method stub
BufferedReader br ;
try
{
clientSocket = new MulticastSocket(4447);
InetAddress group = InetAddress.getByName(“230.0.0.1”);
InetAddress IPAddr = InetAddress.getByName(“localhost”);
clientSocket.joinGroup(group);
byte[] sendData = new byte[1024];
String sentence=null;
new Thread(new Client()).start();
//SEND DATA
while(true)
{
sentence=null;
br= new BufferedReader(new InputStreamReader(System.in));
sentence=br.readLine();
sendData = new byte[1024];
sendData = sentence.getBytes();
DatagramPacket sendPacket = new DatagramPacket(sendData,sendData.length,IPAddr,9877);
clientSocket.send(sendPacket);
send_flag = true;
}
}
catch (SocketException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
catch (UnknownHostException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
catch (IOException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
}
@Override
//READ FROM SERVER
public void run()
{
// TODO Auto-generated method stub
DatagramPacket recvPacket;
while(!getsen.equals(“Bye”))
{
try
{
recvPacket = new DatagramPacket(recvData,recvData.length);
clientSocket.receive(recvPacket);
getsen = new String(recvPacket.getData());
if(send_flag!=true)
System.out.println(“BROADCASTED MESSAGE:”+getsen);
getsen= ” “;
send_flag = false;
}
catch (IOException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
Server.java
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.InetAddress;
import java.net.SocketException;
public class Server
{
static byte[] recvData = new byte[1024];
static byte[] sendData = new byte[1024];
static DatagramSocket ds;
static InetAddress group;
public static void main(String[] args) { // TODO Auto-generated method stub
try {
ds = new DatagramSocket(9877);
group = InetAddress.getByName(“230.0.0.1”);
BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); DatagramPacket recvPack;
while(true) {
recvData = new byte[1024];
try {
recvPack = new DatagramPacket(recvData,recvData.length);
ds.receive(recvPack);
String sentence = new String(recvPack.getData());
System.out.println(sentence); method(sentence);
}
catch (IOException e)
{ // TODO Auto-generated catch block
e.printStackTrace();
}
}
} catch (SocketException e) { // TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) { // TODO Auto-generated catch block
e.printStackTrace();
}
} public static void method(String sentence) { // TODO Auto-generated method stub sendData = sentence.getBytes();
DatagramPacket sendPack = new DatagramPacket(sendData,sendData.length,group,4447);
try {
ds.send(sendPack);
} catch (IOException e) { // TODO Auto-generated catch block
e.printStackTrace();
}
}
}
Peer to Peer Chat
Client.java
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.InetAddress;
public class PeerClient {
public final static int PORT=8778;
public final static String SERVER_IP=”127.0.0.1″;
public static void main(String[] args) {
BufferedReader br=null;
DatagramSocket socket=null;
String s;
try {
socket=new DatagramSocket();
br=new BufferedReader(new InputStreamReader(System.in));
InetAddress server=InetAddress.getByName(SERVER_IP);
System.out.println(“Client Socket Created.\nENter msg:”);
while(true) {
System.out.print(“>”);
s=br.readLine();
byte[] sendMsg=s.getBytes();
DatagramPacket sendingPacket=new DatagramPacket(sendMsg, sendMsg.length,server,PORT);
socket.send(sendingPacket);
System.out.println(“Waiting for reply.”);
byte[] replyMsg=new byte[1000];
DatagramPacket receivingPacket=new DatagramPacket(replyMsg, replyMsg.length); socket.receive(receivingPacket);
byte[] data=receivingPacket.getData();
String s1=new String(data, 0,data.length); System.out.println(receivingPacket.getAddress().getHostAddress()+”:”+receivingPacket.getPort()+”=> “+s1);
if(s1.equalsIgnoreCase(“bye”)) { System.out.println(“Connection Closed”);
break;
}
} socket.close();
} catch (Exception e) { // TODO: handle exception } }}
Server.java
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.DatagramPacket;
import java.net.DatagramSocket;
public class PeerServer {
public static void main(String[] args) {
DatagramSocket socket=null;
try { socket=new DatagramSocket(8778);
//server socket byte[] buffer=new byte[1000]; //buffer for msg DatagramPacket incomingPacket=new DatagramPacket(buffer, buffer.length); //packet to receive data System.out.println(“Server Socket Created.\nWaiting for data..\n”);
while(true) {
socket.receive(incomingPacket);
byte[] msg=incomingPacket.getData();
String s=new String(msg,0,msg.length); System.out.println(incomingPacket.getAddress().getHostAddress()+”:”+incomingPacket.getPort()+” > “+s);
if(s.equalsIgnoreCase(“bye”))
{ String reply=new String(“Bye”);
msg=reply.getBytes();
DatagramPacket sendPacket=new DatagramPacket(msg, msg.length,incomingPacket.getAddress(),incomingPacket.getPort()); socket.send(sendPacket); break;
}
else {
BufferedReader br=new BufferedReader(new InputStreamReader(System.in)); System.out.print(“>”);
s=br.readLine();
msg=s.getBytes();
DatagramPacket sendPacket=new DatagramPacket(msg, msg.length,incomingPacket.getAddress(),incomingPacket.getPort()); socket.send(sendPacket);
}
}
socket.close();
} catch(Exception e) { } }
}
//ClientCode.java
import java.io.*;
import java.net.*;
public class ClientCode
{
Socket socket;
BufferedReader sock_in,kdb_in;
PrintWriter sock_out;
String str;
public ClientCode()
{
try{
Socket socket=new Socket(“127.0.0.1”,8080);
kdb_in=new BufferedReader(new InputStreamReader(System.in));
sock_in=new BufferedReader(new InputStreamReader(socket.getInputStream()));
sock_out=new PrintWriter(socket.getOutputStream());
while(true)
{
System.out.println(“Enter the msg”);
str=kdb_in.readLine();
sock_out.println(str);
sock_out.flush();
System.out.println(“Msg from Server”);
str=sock_in.readLine();
System.out.println(str);
if(str.equals(“bye”))
break;
}
//socket.close();
}catch (Exception e) { }
}
public static void main(String arg[])
{
new ClientCode();
}
}
/* OUTPUT
unixlab@unixlab-Veriton-M200-H81:~$ javac ClientCode.java
unixlab@unixlab-Veriton-M200-H81:~$ java ClientCode
Enter the msg
hiiii
Msg from Server
hii,welcome to svit
Enter the msg
what r u doing?
Msg from Server
nothing
Enter the msg
ok bye
Msg from Server
bye
unixlab@unixlab-Veriton-M200-H81:~$
*/
//ServerCode.java
import java.io.*;
import java.net.*;
public class ServerCode
{
ServerSocket ss;
Socket socket;
BufferedReader sock_in,kdb_in;
PrintWriter sock_out;
String str;
public ServerCode()
{
try{
ss=new ServerSocket(8080);
System.out.println(“Server is listening port 8080”);
socket=ss.accept();
System.out.println(“Connection established…”);
kdb_in=new BufferedReader(new InputStreamReader(System.in));
sock_in=new BufferedReader(new InputStreamReader(socket.getInputStream()));
sock_out=new PrintWriter(socket.getOutputStream());
while(true)
{
System.out.println(“Msg from client”);
str=sock_in.readLine();
System.out.println(str);
System.out.println(“Enter the msg”);
str=kdb_in.readLine();
sock_out.println(str);
sock_out.flush();
if(str.equals(“bye”))
break;
}
}catch (Exception e) { }
}
public static void main(String arg[])
{
new ServerCode();
}
}
/* Output:
unixlab@unixlab-Veriton-M200-H81:~$ javac ServerCode.java
unixlab@unixlab-Veriton-M200-H81:~$ java ServerCode
Server is listening port 8080
Connection established…
Msg from client
hiiii
Enter the msg
hii,welcome to svit
Msg from client
what r u doing?
Enter the msg
nothing
Msg from client
ok bye
Enter the msg
bye
unixlab@unixlab-Veriton-M200-H81:~$
*/
/import java.net.*;
import java.util.*;
public class IPDemo
{
public static void main(String[] args){
String host;
Scanner ch = new Scanner(System.in);
System.out.print(“1.Enter Host Name \n2.Enter IP address \nChoice=”);
int choice = ch.nextInt();
if(choice==1)
{
Scanner input = new Scanner(System.in);
System.out.print(“\n Enter host name: “);
host = input.nextLine();
try {
InetAddress address = InetAddress.getByName(host);
System.out.println(“IP address: ” + address.getHostAddress());
System.out.println(“Host name : ” + address.getHostName());
System.out.println(“Host name and IP address: ” + address.toString());
}
catch (UnknownHostException ex) {
System.out.println(“Could not find ” + host);
}
}
else
{
Scanner input = new Scanner(System.in);
System.out.print(“\n Enter IP address: “);
host = input.nextLine();
try {
InetAddress address = InetAddress.getByName(host);
System.out.println(“Host name : ” + address.getHostName());
System.out.println(“IP address: ” + address.getHostAddress());
System.out.println(“Host name and IP address: ” + address.toString());
}
catch (UnknownHostException ex) {
System.out.println(“Could not find ” + host);
}
}
}
}
/*OUTPUT
iotlab@iotlab-Veriton-M200-B360:~$
javac IPDemo.java
iotlab@iotlab-Veriton-M200-B360:~$
java IPDemo
1.Enter Host Name
2.Enter IP address
Choice=1
Enter host name: www.google.comIP
address: 172.217.160.196
Host name : www.google.com
Host name and IP address: www.google.com/172.217.160.196
iotlab@iotlab-Veriton-M200-B360:~$
java IPDemo
1.Enter Host Name
2.Enter IP address Choice=2
Enter IP address: 8.8.8.8
Host name : dns.googleIP
address: 8.8.8.8
Host name and IP address: dns.google/8.8.8.8
iotlab@iotlab-Veriton-M200-B360:~$ */
#include <iostream>
#include<fstream>
#include <iomanip>
#include<string>
using namespace std;
int main()
{
cout << “***** PACKET ANALYZER *****” << endl;
string value, sr_no,time,source,destination,info,protocol,len;
int count=-1,i=0;
int choice;
do
{
ifstream file(“data.csv”);
//Reinitialize Counters
count=-1;
i=0;
cout<<“\nEnter which protocol packets you want to see”<<endl;
cout<<“1.IP\n2.UDP\n3.TCP\n4.Ethernet\n0Exit!!!\nChoice:”<<endl;
cin>>choice;
string protocolChoice; //sting to hold user packet choice
switch(choice){
case 1: protocolChoice=”ICMPv6″;
break;
case 2: protocolChoice=”UDP”;
break;
case 3: protocolChoice=”TCP”;
break;
case 4: protocolChoice=”ARP”;
break;
default: protocolChoice=”ARP”;
break;
}
while(file.good()) //LOOP UNTIL FILE HAS CONTENT
{
getline(file,sr_no,’,’); //GET STRING TILL ,
getline(file,time,’,’);
getline(file,source,’,’);
getline(file,destination,’,’);
getline(file,protocol,’,’);
getline(file,len,’,’);
getline(file,info,’\n’);
protocol=string(protocol,1,protocol.length()-2);
if(protocol==”Protocol”||protocol==protocolChoice)
{
cout <<setw(4)<<left<<i++;
cout <<setw(12)<<left<< string( time, 1, time.length()-2 );
cout << setw(30)<<left<<string( source, 1, source.length()-2 );
cout << setw(30)<<left<<string( destination, 1, destination.length()-2 );
cout <<setw(8)<<left<<protocol;
cout <<setw(8)<<left<< string( len, 1, len.length()-2 );
cout << string( info, 1, info.length()-2 )<<“\n”;
count++;
}
}
file.close();
cout<<“\nTotal Packet Count: “<<count;
}while(choice!=0);
return 0;
}
/* output:
* ***** PACKET ANALYZER *****
Enter which protocol packets you want to see
1.IP
2.UDP
3.TCP
4.Ethernet
0Exit!!!
Choice:
1
0 Time Source Destination ProtocolLength Info
1 0.000000000 fe80::f68e:38ff:fe87:a57e ff02::1:ff02:21a ICMPv6 86 Neighbor Solicitation for fe80::726d:ecff:fe02:21a from f4:8e:38:87:a5:7e
2 0.151808000 fe80::175:6553:3c34:d4f0 ff02::1:ff02:21a ICMPv6 86 Neighbor Solicitation for fe80::726d:ecff:fe02:21a from c8:1f:66:06:4a:84
3 0.245234000 fe80::208:a1ff:fe43:c3c2 ff02::1:ff02:21a ICMPv6 86 Neighbor Solicitation for fe80::726d:ecff:fe02:21a from 00:08:a1:43:c3:c2
4 0.301527000 fe80::4046:d001:d60a:e934 ff02::1:ff00:1 ICMPv6 86 Neighbor Solicitation for fe80::1 from 00:25:64:92:4d:81
5 0.310878000 fe80::80a7:7d55:7ecf:5582 ff02::1:ff02:21a ICMPv6 86 Neighbor Solicitation for fe80::726d:ecff:fe02:21a from 34:17:eb:9e:8e:45
6 0.382715000 fe80::104b:adee:75e6:c425 ff02::1:ff2f:e430 ICMPv6 86 Neighbor Solicitation for fe80::a490:6a6c:d52f:e430 from 00:19:d1:45:e9:4b
7 0.486747000 fe80::8e2:220e:db99:187f ff02::2 ICMPv6 70 Router Solicitation from c8:e0:eb:9e:44:9e
8 0.619047000 fe80::adb7:4c35:7a64:621e ff02::1:ff18:d425 ICMPv6 86 Neighbor Solicitation for fe80::899f:4a1b:518:d425 from b8:ac:6f:68:65:68
9 0.621767000 fe80::25e2:1c6e:545d:d5ca ff02::1:ff00:1 ICMPv6 86 Neighbor Solicitation for fe80::1 from f0:4d:a2:fd:b3:b3
10 0.879948000 fe80::6600:6aff:fe37:40d9 ff02::1:ff02:22f ICMPv6 86 Neighbor Solicitation for fe80::726d:ecff:fe02:22f from 64:00:6a:37:40:d9
11 0.943252000 fe80::4a4d:7eff:fec6:fe57 ff02::1:ff02:21a ICMPv6 86 Neighbor Solicitation for fe80::726d:ecff:fe02:21a from 48:4d:7e:c6:fe:57
12 0.973236000 fe80::ad92:4946:c11e:bff0 ff02::1:ff00:1 ICMPv6 86 Neighbor Solicitation for fe80::1 from f4:8e:38:9d:86:5c
13 1.001717000 fe80::f68e:38ff:fe87:a57e ff02::1:ff02:21a ICMPv6 86 Neighbor Solicitation for fe80::726d:ecff:fe02:21a from f4:8e:38:87:a5:7e
14 1.158015000 fe80::175:6553:3c34:d4f0 ff02::1:ff02:21a ICMPv6 86 Neighbor Solicitation for fe80::726d:ecff:fe02:21a from c8:1f:66:06:4a:84
15 1.164756000 fe80::90c7:9c8e:4162:743a ff02::16 ICMPv6 110 Multicast Listener Report Message v2
16 1.247232000 fe80::208:a1ff:fe43:c3c2 ff02::1:ff02:21a ICMPv6 86 Neighbor Solicitation for fe80::726d:ecff:fe02:21a from 00:08:a1:43:c3:c2
17 1.299874000 fe80::4046:d001:d60a:e934 ff02::1:ff00:1 ICMPv6 86 Neighbor Solicitation for fe80::1 from 00:25:64:92:4d:81
18 1.334884000 fe80::80a7:7d55:7ecf:5582 ff02::1:ff02:21a ICMPv6 86 Neighbor Solicitation for fe80::726d:ecff:fe02:21a from 34:17:eb:9e:8e:45
19 1.381157000 fe80::104b:adee:75e6:c425 ff02::1:ff2f:e430 ICMPv6 86 Neighbor Solicitation for fe80::a490:6a6c:d52f:e430 from 00:19:d1:45:e9:4b
20 1.410771000 fe80::adb7:4c35:7a64:621e ff02::1:ff11:4e6f ICMPv6 86 Neighbor Solicitation for fe80::5058:2741:6f11:4e6f from b8:ac:6f:68:65:68
21 1.422139000 fe80::ec3b:be3b:a1cf:b8dc ff02::1:ff64:621e ICMPv6 86 Neighbor Solicitation for fe80::adb7:4c35:7a64:621e from 28:d2:44:f6:d0:71
22 1.464011000 fe80::c2c9:76ff:fe50:72f9 ff02::2 ICMPv6 70 Router Solicitation from c0:c9:76:50:72:f9
23 1.472534000 fe80::adb7:4c35:7a64:621e ff02::1:ff1c:b39b ICMPv6 86 Neighbor Solicitation for fe80::d107:c499:311c:b39b from b8:ac:6f:68:65:68
24 1.502391000 fe80::4a4d:7eff:feca:8004 ff02::1:ff02:21a ICMPv6 86 Neighbor Solicitation for fe80::726d:ecff:fe02:21a from 48:4d:7e:ca:80:04
25 1.614264000 fe80::4a4d:7eff:fec6:ff33 ff02::1:ff02:21a ICMPv6 86 Neighbor Solicitation for fe80::726d:ecff:fe02:21a from 48:4d:7e:c6:ff:33
26 1.639345000 fe80::221:9bff:fe6e:4b01 ff02::1:ff02:21a ICMPv6 86 Neighbor Solicitation for fe80::726d:ecff:fe02:21a from 00:21:9b:6e:4b:01
27 1.880789000 fe80::6600:6aff:fe37:40d9 ff02::1:ff02:22f ICMPv6 86 Neighbor Solicitation for fe80::726d:ecff:fe02:22f from 64:00:6a:37:40:d9
28 1.998620000 fe80::adb7:4c35:7a64:621e ff02::1:ffa7:7fb2 ICMPv6 86 Neighbor Solicitation for fe80::a1fb:332b:83a7:7fb2 from b8:ac:6f:68:65:68
29 2.003773000 fe80::f68e:38ff:fe87:a57e ff02::1:ff02:21a ICMPv6 86 Neighbor Solicitation for fe80::726d:ecff:fe02:21a from f4:8e:38:87:a5:7e
30 2.028027000 fe80::e298:61ff:fe35:9a26 ff02::1:ff64:621e ICMPv6 86 Neighbor Solicitation for fe80::adb7:4c35:7a64:621e from e0:98:61:35:9a:26
31 2.040149000 fe80::f68e:38ff:fe87:a56a ff02::1:ff02:21a ICMPv6 86 Neighbor Solicitation for fe80::726d:ecff:fe02:21a from f4:8e:38:87:a5:6a
32 2.107577000 fe80::b283:feff:fe4d:f1c9 ff02::1:ff02:21a ICMPv6 86 Neighbor Solicitation for fe80::726d:ecff:fe02:21a from b0:83:fe:4d:f1:c9
33 2.162415000 fe80::90c7:9c8e:4162:743a ff02::16 ICMPv6 110 Multicast Listener Report Message v2
34 2.181982000 fe80::175:6553:3c34:d4f0 ff02::1:ff02:21a ICMPv6 86 Neighbor Solicitation for fe80::726d:ecff:fe02:21a from c8:1f:66:06:4a:84
Total Packet Count: 34
Enter which protocol packets you want to see
1.IP
2.UDP
3.TCP
4.Ethernet
0Exit!!!
Choice:
2
0 Time Source Destination ProtocolLength Info
Total Packet Count: 0
Enter which protocol packets you want to see
1.IP
2.UDP
3.TCP
4.Ethernet
0Exit!!!
Choice:
3
0 Time Source Destination ProtocolLength Info
1 0.243260000 216.58.197.68 10.10.14.151 TCP 66 https > 51709 [FIN, ACK] Seq=1 Ack=1 Win=175 Len=0 TSval=2559300079 TSecr=23747257
2 0.438095000 108.168.177.14 10.10.13.238 TCP 103 [TCP segment of a reassembled PDU]
3 0.746828000 192.168.16.254 10.10.10.28 TCP 60 57777 > etftp [RST] Seq=1 Win=5840 Len=0
4 0.855756000 64.233.188.188 10.10.15.48 TCP 97 hpvroom > 39687 [PSH, ACK] Seq=1 Ack=1 Win=175 Len=31 TSval=2933171628 TSecr=49981356
5 1.839024000 118.214.135.85 10.10.12.0 TCP 60 https > 50976 [FIN, ACK] Seq=32 Ack=1 Win=980 Len=0
6 1.839028000 118.214.135.85 10.10.12.0 TCP 60 https > 50977 [FIN, ACK] Seq=32 Ack=1 Win=980 Len=0
7 1.886438000 192.168.3.254 192.168.3.211 TCP 62 ndl-aas > fnet-remote-ui [SYN, ACK] Seq=0 Ack=1 Win=29200 Len=0 MSS=1460 SACK_PERM=1
8 1.888346000 192.168.3.254 192.168.3.211 TCP 60 ndl-aas > fnet-remote-ui [ACK] Seq=1 Ack=211 Win=30016 Len=0
Total Packet Count: 8
*/
#include<stdio.h>
#include<string.h>
#include<stdlib.h>
#include<arpa/inet.h>
#include<sys/socket.h>
#define SERVER “127.0.0.1”
#define BUFLEN 503
#define PORT 8885
void die(char *s)// used to quit
{
perror(s);
exit(1);
}
unsigned long fsize(char* file)
{
FILE * f = fopen(file, “r”);
fseek(f, 0, SEEK_END);//used to take the function pointer to the starting of the file or end of the file or to any position specified by the user.
unsigned long len = (unsigned long)ftell(f);// used to find out the position of file pointer in the file with respect to starting of the file.
fclose(f);
return len;
}
int main(void)
{
struct sockaddr_in si_other;
int s, i, slen=sizeof(si_other);
char buf[BUFLEN];
char message[BUFLEN];
if ( (s=socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)) == -1)
{
die(“socket”);
}
memset((char *) &si_other, 0, sizeof(si_other));
si_other.sin_family = AF_INET;
si_other.sin_port = htons(PORT);
if (inet_aton(SERVER , &si_other.sin_addr) == 0) //converts the specified string, in the Internet standard dot notation, to a network address, and stores the address in the structure provided.
{
fprintf(stderr, “inet_aton() failed\n”);
exit(1);
}
char fname[20];
printf(“Enter Filename with extension: “);
scanf(“%s”,&fname);//add.txt
sendto(s, fname, 20 , 0 , (struct sockaddr *) &si_other, slen);
memset(message,0,503);
unsigned long siz = fsize(fname);//fsize(add.txt)=20
printf(“%ld”,(siz % 503));//20%503=20
char str[10];
sprintf(str, “%d”, siz);
sendto(s, str, 20 , 0 , (struct sockaddr *) &si_other, slen);
FILE *f;
f=fopen(fname,”rb”);
memset(message,0,503);
fread(message, 503,1,f);
int itr =1;
while(itr*503<siz)
{
//fread(message, 503,1,f);
if (sendto(s, message, 503 , 0 , (struct sockaddr *) &si_other, slen)==-1)
{
die(“sendto()”);
}
memset(message,0,503);
fread(message, 503,1,f);
itr++;
}
fread(message, (siz % 503),1,f);
sendto(s, message, (siz % 503) , 0 , (struct sockaddr *) &si_other, slen);
memset(message,0,503);
fclose(f);
close(s);
return 0;
}
#include<stdio.h>#include<string.h>#include<stdlib.h>#include<arpa/inet.h>#include<sys/socket.h>
#define BUFLEN 503#define PORT 8885
void die(char *s){ perror(s); exit(1);}
int main(void){ struct sockaddr_in si_me, si_other; int s, i,j, slen = sizeof(si_other) , recv_len; char buf[BUFLEN]; if ((s=socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)) == -1) { die(“socket”); } memset((char *) &si_me, 0, sizeof(si_me)); si_me.sin_family = AF_INET; si_me.sin_port = htons(PORT); si_me.sin_addr.s_addr = htonl(INADDR_ANY); if( bind(s , (struct sockaddr*)&si_me, sizeof(si_me) ) == -1) { die(“bind”); } char fname[20]; FILE *fp; recv_len = recvfrom(s, buf, 20, 0, (struct sockaddr *) &si_other, &slen); char fna[100]; memset(buf,0,503); recv_len = recvfrom(s, buf, 20, 0, (struct sockaddr *) &si_other, &slen); strcpy(fna,buf); int len= strlen(fna); printf(“%d”,len);//20 for(j=len-1;j>=0;j–) { if(fna[j]==’.’) { fna[j-1]=’1′; } } unsigned long mm = atoi(buf); fp=fopen(fna,”wb”); int itr=1; memset(buf,0,503); while(itr*503<mm) { if ((recv_len = recvfrom(s, buf, 503, 0, (struct sockaddr *) &si_other, &slen)) == -1) { die(“recvfrom()”); } fwrite(buf,503, 1, fp); memset(buf,0,503); itr++; } printf(“%d”,(mm%503)); recv_len = recvfrom(s, buf, (mm%503), 0, (struct sockaddr *) &si_other, &slen); fwrite(buf,(mm%503), 1, fp); memset(buf,0,503); fclose(fp); close(s); return 0;}
Client.c
#include <stdio.h>#include <sys/socket.h>#include <netinet/in.h>#include <string.h>
int main(){int clientSocket;char buffer[1024];struct sockaddr_in serverAddr;socklen_t addr_size;
/*—- Create the socket. The three arguments are: —-*//* 1) Internet domain 2) Stream socket 3) Default protocol (TCP in this case) */clientSocket = socket(PF_INET, SOCK_STREAM, 0);
/*—- Configure settings of the server address struct —-*//* Address family = Internet */serverAddr.sin_family = AF_INET;/* Set port number, using htons function to use proper byte order */serverAddr.sin_port = htons(7891);/* Set IP address to localhost */serverAddr.sin_addr.s_addr = inet_addr(“127.0.0.1”);/* Set all bits of the padding field to 0 */memset(serverAddr.sin_zero, ‘\0’, sizeof serverAddr.sin_zero);
/*—- Connect the socket to the server using the address struct —-*/addr_size = sizeof serverAddr;connect(clientSocket, (struct sockaddr *) &serverAddr, addr_size);
/*—- Read the message from the server into the buffer —-*/recv(clientSocket, buffer, 1024, 0);
/*—- Print the received message —-*/printf(“Data received: %s”,buffer);
return 0;}
#include <stdio.h>#include <sys/socket.h>#include <netinet/in.h>#include <string.h>
int main(){int welcomeSocket, newSocket;char buffer[1024];struct sockaddr_in serverAddr;struct sockaddr_storage serverStorage;socklen_t addr_size;
/*—- Create the socket. The three arguments are: —-*//* 1) Internet domain 2) Stream socket 3) Default protocol (TCP in this case) */welcomeSocket = socket(PF_INET, SOCK_STREAM, 0);
/*—- Configure settings of the server address struct —-*//* Address family = Internet */serverAddr.sin_family = AF_INET;/* Set port number, using htons function to use proper byte order */serverAddr.sin_port = htons(7891);/* Set IP address to localhost */serverAddr.sin_addr.s_addr = inet_addr(“127.0.0.1”);/* Set all bits of the padding field to 0 */memset(serverAddr.sin_zero, ‘\0’, sizeof serverAddr.sin_zero);
/*—- Bind the address struct to the socket —-*/bind(welcomeSocket, (struct sockaddr *) &serverAddr, sizeof(serverAddr));
/*—- Listen on the socket, with 5 max connection requests queued —-*/if(listen(welcomeSocket,5)==0)printf(“Listening\n”);elseprintf(“Error\n”);
/*—- Accept call creates a new socket for the incoming connection —-*/addr_size = sizeof serverStorage;newSocket = accept(welcomeSocket, (struct sockaddr *) &serverStorage, &addr_size);
/*—- Send message to the socket of the incoming connection —-*/strcpy(buffer,”Hello World\n”);send(newSocket,buffer,13,0);
return 0;}
/*OUTPUT CLIENTiotlab@iotlab-Veriton-M200-B360:~$ cd TCP\ Socket/iotlab@iotlab-Veriton-M200-B360:~/TCP Socket$ cd Simple\ Hello/iotlab@iotlab-Veriton-M200-B360:~/TCP Socket/Simple Hello$ gcc client_simple_hello.c -o clientclient_simple_hello.c: In function ‘main’:client_simple_hello.c:23:30: warning: implicit declaration of function ‘inet_addr’; did you mean ‘s6_addr’? [-Wimplicit-function-declaration] serverAddr.sin_addr.s_addr = inet_addr(“127.0.0.1”); ^~~~~~~~~ s6_addriotlab@iotlab-Veriton-M200-B360:~/TCP Socket/Simple Hello$ ./clientData received: Hello World
OUTPUT SERVERiotlab@iotlab-Veriton-M200-B360:~/TCP Socket/Simple Hello$ gcc server_simple_hello.c -o serverserver_simple_hello.c: In function ‘main’:server_simple_hello.c:24:30: warning: implicit declaration of function ‘inet_addr’; did you mean ‘s6_addr’? [-Wimplicit-function-declaration] serverAddr.sin_addr.s_addr = inet_addr(“127.0.0.1”); ^~~~~~~~~ s6_addriotlab@iotlab-Veriton-M200-B360:~/TCP Socket/Simple Hello$ ./serverListening*/
#include <sys/socket.h>#include <sys/types.h>#include <netinet/in.h>#include <netdb.h>#include <stdio.h>#include <string.h>#include <stdlib.h>#include <unistd.h>#include <errno.h>#include <arpa/inet.h>
int main(void){ int sockfd = 0; int bytesReceived = 0; char recvBuff[256]; memset(recvBuff, ‘0’, sizeof(recvBuff)); struct sockaddr_in serv_addr;
/* Create a socket first */ if((sockfd = socket(AF_INET, SOCK_STREAM, 0))< 0) { printf(“\n Error : Could not create socket \n”); return 1; }
/* Initialize sockaddr_in data structure */ serv_addr.sin_family = AF_INET; serv_addr.sin_port = htons(5000); // port serv_addr.sin_addr.s_addr = inet_addr(“172.16.6.168”);
/* Attempt a connection */ if(connect(sockfd, (struct sockaddr *)&serv_addr, sizeof(serv_addr))<0) { printf(“\n Error : Connect Failed \n”); return 1; }
/* Create file where data will be stored */ FILE *fp; fp = fopen(“sample_file.txt”, “ab”); if(NULL == fp) { printf(“Error opening file”); return 1; }
/* Receive data in chunks of 256 bytes */ while((bytesReceived = read(sockfd, recvBuff, 256)) > 0) { printf(“Bytes received %d\n”,bytesReceived); // recvBuff[n] = 0; fwrite(recvBuff, 1,bytesReceived,fp); // printf(“%s \n”, recvBuff); }
if(bytesReceived < 0) { printf(“\n Read Error \n”); }
return 0;}
#include <sys/socket.h>#include <netinet/in.h>#include <arpa/inet.h>#include <stdio.h>#include <stdlib.h>#include <unistd.h>#include <errno.h>#include <string.h>#include <sys/types.h>
int main(void){ int listenfd = 0; int connfd = 0; struct sockaddr_in serv_addr; char sendBuff[1024]; int numrv;
listenfd = socket(AF_INET, SOCK_STREAM, 0);
printf(“Socket retrieve success\n”);
memset(&serv_addr, ‘0’, sizeof(serv_addr)); memset(sendBuff, ‘0’, sizeof(sendBuff));
serv_addr.sin_family = AF_INET; serv_addr.sin_addr.s_addr = htonl(INADDR_ANY); serv_addr.sin_port = htons(5000);
bind(listenfd, (struct sockaddr*)&serv_addr,sizeof(serv_addr));
if(listen(listenfd, 10) == -1) { printf(“Failed to listen\n”); return -1; }
while(1) { connfd = accept(listenfd, (struct sockaddr*)NULL ,NULL);
/* Open the file that we wish to transfer */ FILE *fp = fopen(“sample_file.txt”,”rb”); if(fp==NULL) { printf(“File opern error”); return 1; }
/* Read data from file and send it */ while(1) { /* First read file in chunks of 256 bytes */ unsigned char buff[256]={0}; int nread = fread(buff,1,256,fp); printf(“Bytes read %d \n”, nread);
/* If read was success, send data. */ if(nread > 0) { printf(“Sending \n”); write(connfd, buff, nread); }
/* * There is something tricky going on with read .. * Either there was error, or we reached end of file. */ if (nread < 256) { if (feof(fp)) printf(“End of file\n”); if (ferror(fp)) printf(“Error reading\n”); break; }
}
close(connfd); sleep(1); }
return 0;}
/*OUTPUT SERVERiotlab@iotlab-Veriton-M200-B360:~$ cd TCP\ Socket/iotlab@iotlab-Veriton-M200-B360:~/TCP Socket$ cd File\ Transfer/iotlab@iotlab-Veriton-M200-B360:~/TCP Socket/File Transfer$ gcc Server_file.c -o serveriotlab@iotlab-Veriton-M200-B360:~/TCP Socket/File Transfer$ ./server Socket retrieve successBytes read 0 End of file
OUTPUT CLIENTiotlab@iotlab-Veriton-M200-B360:~/TCP Socket/File Transfer$ gcc Client_file.c -o clientiotlab@iotlab-Veriton-M200-B360:~/TCP Socket/File Transfer$ ./clientiotlab@iotlab-Veriton-M200-B360:~/TCP Socket/File Transfer$ */
#include<sys/types.h>
#include<sys/socket.h>
#include<stdio.h>
#include<netinet/in.h>
#include <unistd.h>
#include<string.h>
#include<strings.h>
#include <arpa/inet.h>
//#define buffsize 150
void main()
{
int b,sockfd,sin_size,con,n,len;
char operator;
int op1,op2,result;
if((sockfd=socket(AF_INET,SOCK_STREAM,0))>0)
printf(“socket created sucessfully\n”);
struct sockaddr_in servaddr;
servaddr.sin_family=AF_INET;
servaddr.sin_addr.s_addr=inet_addr(“127.0.0.1”);
servaddr.sin_port=6006;
sin_size = sizeof(struct sockaddr_in);
if((con=connect(sockfd,(struct sockaddr *) &servaddr, sin_size))==0); //initiate a connection on a socket
printf(“connect sucessful\n”);
printf(“Enter operation:\n +:Addition \n -: Subtraction \n /: Division \n*:Multiplication \n”);
scanf(“%c”,&operator);
printf(“Enter operands:\n”);
scanf(“%d %d”, &op1, &op2);
write(sockfd,&operator,10);
write(sockfd,&op1,sizeof(op1));
write(sockfd,&op2,sizeof(op2));
read(sockfd,&result,sizeof(result));
printf(“Operation result from server=%d\n”,result);
close(sockfd);
}
#include<sys/types.h>
#include<sys/socket.h>
#include<stdio.h>
#include<netinet/in.h>
#include <unistd.h>
#include<string.h>
#include <arpa/inet.h>
void main()
{
int b,sockfd,connfd,sin_size,l,n,len;
char operator;
int op1,op2,result;
if((sockfd=socket(AF_INET,SOCK_STREAM,0))>0)
printf(“socket created sucessfully\n”); //socket creation
struct sockaddr_in servaddr;
struct sockaddr_in clientaddr;
servaddr.sin_family=AF_INET;
servaddr.sin_addr.s_addr=inet_addr(“127.0.0.1”);
servaddr.sin_port=6006;
if((bind(sockfd, (struct sockaddr *)&servaddr,sizeof(servaddr)))==0)
printf(“bind sucessful\n”); //bind() assigns the
// address specified by addr to the socket referred to by the file
// descriptor sockfd. addrlen specifies the size, in bytes, of the
// address structure pointed to by addr. Traditionally, this operation is
// called “assigning a name to a socket”.
if((listen(sockfd,5))==0) //listen for connections on a socket
printf(“listen sucessful\n”);
sin_size = sizeof(struct sockaddr_in);
if((connfd=accept(sockfd,(struct sockaddr *)&clientaddr,&sin_size))>0);
printf(“accept sucessful\n”);
read(connfd, &operator,10);
read(connfd,&op1,sizeof(op1));
read(connfd,&op2,sizeof(op2));
switch(operator)
{
case ‘+’:
result=op1 + op2;
printf(“Result is: %d + %d = %d\n”,op1, op2, result);
break;
case ‘-‘:
result=op1 – op2;
printf(“Result is: %d – %d = %d\n”,op1, op2, result);
break;
case ‘*’:
result=op1 * op2;
printf(“Result is: %d * %d = %d\n”,op1, op2, result);
break;
case ‘/’:
result=op1 / op2;
printf(“Result is: %d / %d = %d\n”,op1, op2, result);
break;
default:
printf(“ERROR: Unsupported Operation”);
}
write(connfd,&result,sizeof(result));
close(sockfd);
}
/*OUTPUT SERVER
iotlab@iotlab-Veriton-M200-B360:~$ cd TCP\ Socket/
iotlab@iotlab-Veriton-M200-B360:~/TCP Socket$ cd Arithmetic/
iotlab@iotlab-Veriton-M200-B360:~/TCP Socket/Arithmetic$ gcc server_arithmetic.c -o ser
iotlab@iotlab-Veriton-M200-B360:~/TCP Socket/Arithmetic$ ./ser
socket created sucessfully
bind sucessful
listen sucessful
accept sucessful
Result is: 10 + 15 = 25
iotlab@iotlab-Veriton-M200-B360:~/TCP Socket/Arithmetic$
OUTPUT CLIENT
iotlab@iotlab-Veriton-M200-B360:~$ cd TCP\ Socket/
iotlab@iotlab-Veriton-M200-B360:~/TCP Socket$ cd Arithmetic/
iotlab@iotlab-Veriton-M200-B360:~/TCP Socket/Arithmetic$ gcc client_arithmetic.c -o cl
iotlab@iotlab-Veriton-M200-B360:~/TCP Socket/Arithmetic$ ./cl
socket created sucessfully
connect sucessful
Enter operation:
+:Addition
-: Subtraction
/: Division
*:Multiplication
+
Enter operands:
10
15
Operation result from server=25
iotlab@iotlab-Veriton-M200-B360:~/TCP Socket/Arithmetic$
*/
#include<sys/types.h>#include<sys/socket.h>#include<stdio.h>#include<netinet/in.h> #include <unistd.h>#include<string.h> #include<strings.h>#include <arpa/inet.h>#include<math.h>//#define buffsize 150void main(){ int b,sockfd,sin_size,con,n,len; double angle,result; char op;
if((sockfd=socket(AF_INET,SOCK_STREAM,0))>0) printf(“socket created sucessfully\n”); struct sockaddr_in servaddr;
servaddr.sin_family=AF_INET; servaddr.sin_addr.s_addr=inet_addr(“127.0.0.1”); servaddr.sin_port=6666;
sin_size = sizeof(servaddr); if((con=connect(sockfd,(struct sockaddr *) &servaddr, sin_size))==0); //initiate a connection on a socket printf(“connect sucessful\n”); printf(“Enter operation:\n 1:sin \n 2:cos\n 3:tan \n “); scanf(“%c”,&op);
printf(“Enter angle in degree:”); scanf(“%lf”,&angle);
write(sockfd,&op,1); write(sockfd,&angle,sizeof(angle)); read(sockfd,&result,sizeof(result));
printf(“\n Operation result from server=%lf\n”,result); close(sockfd);}
#include<sys/types.h>#include<sys/socket.h>#include<stdio.h>#include<netinet/in.h> #include <unistd.h>#include<string.h> #include <arpa/inet.h>#include<math.h>#define PI 3.14159265void main(){ int b,sockfd,connfd,sin_size,l,n,len; char op; double angle1; double result,val;
if((sockfd=socket(AF_INET,SOCK_STREAM,0))>0) printf(“socket created sucessfully\n”); //socket creation struct sockaddr_in servaddr; struct sockaddr_in clientaddr;
servaddr.sin_family=AF_INET; servaddr.sin_addr.s_addr=inet_addr(“127.0.0.1”); servaddr.sin_port=6666;
if((bind(sockfd, (struct sockaddr *)&servaddr,sizeof(servaddr)))==0) printf(“bind sucessful\n”); //bind() assigns the // address specified by addr to the socket referred to by the file // descriptor sockfd. addrlen specifies the size, in bytes, of the // address structure pointed to by addr. Traditionally, this operation is // called “assigning a name to a socket”.
if((listen(sockfd,5))==0) //listen for connections on a socket printf(“listen sucessful\n”); sin_size = sizeof(clientaddr); if((connfd=accept(sockfd,(struct sockaddr *)&clientaddr,&sin_size))>0); printf(“accept sucessful\n”); val = PI / 180; read(connfd, &op,1);
read(connfd, &angle1, sizeof(angle1)); switch(op) { case ‘1’: result=sin(angle1*val); printf(“sin(%lf)=%lf “,angle1,result); break; case ‘2’: result=cos(angle1*val); printf(“cos(%lf) =%lf “,angle1,result); break; case ‘3’: result=tan(angle1*val); printf(“tan(%lf) = %lf”,angle1,result); break; default: printf(“ERROR: Unsupported Operation”); } write(connfd,&result,sizeof(result)); close(connfd); close(sockfd);}
/*OUTPUT CLIENTiotlab@iotlab-Veriton-M200-B360:~/TCP Socket/Trignometri $ gcc server_trig.c -o ser -lmiotlab@iotlab-Veriton-M200-B360:~/TCP Socket/Trignometri $ ./sersocket created sucessfullybind sucessfullisten sucessfulaccept sucessfulsin(90.000000)=1.000000 iotlab@iotlab-Veriton-M200-B360:~/TCP Socket/Trignometri $
OUTPUT SERVERiotlab@iotlab-Veriton-M200-B360:~/TCP Socket/Trignometri $ gcc client_trig.c -o cl -lmiotlab@iotlab-Veriton-M200-B360:~/TCP Socket/Trignometri $ ./clsocket created sucessfullyconnect sucessfulEnter operation: 1:sin 2:cos 3:tan 1Enter angle in degree:90
Operation result from server=1.000000iotlab@iotlab-Veriton-M200-B360:~/TCP Socket/Trignometri $ */
import java.util.*;
public class Dijkstra
{
public int distance[] = new int[10];
public int cost[][] = new int[10][10];
public void calc(int n,int s)
{
int flag[] = new int[n+1];
int i,minpos=1,k,c,minimum;
for(i=1;i<=n;i++)
{
flag[i]=0;
this.distance[i]=this.cost[s][i];
}
c=2;
while(c<=n)
{
minimum=99;
for(k=1;k<=n;k++)
{
if(this.distance[k]<minimum && flag[k]!=1)
{
minimum=this.distance[i];
minpos=k;
}
}
flag[minpos]=1;
c++;
for(k=1;k<=n;k++)
{
if(this.distance[minpos]+this.cost[minpos][k] < this.distance[k] && flag[k]!=1 )
this.distance[k]=this.distance[minpos]+this.cost[minpos][k];
}
}
}
public static void main(String args[])
{
int nodes,source,i,j;
Scanner in = new Scanner(System.in);
System.out.println(“Enter the Number of Nodes \n”);
nodes = in.nextInt();
Dijkstra d = new Dijkstra();
System.out.println(“Enter the Cost Matrix Weights: \n”);
for(i=1;i<=nodes;i++)
for(j=1;j<=nodes;j++)
{
d.cost[i][j]=in.nextInt();
if(d.cost[i][j]==0)
d.cost[i][j]=999;
}
System.out.println(“Enter the Source Vertex :\n”);
source=in.nextInt();
d.calc(nodes,source);
System.out.println(“The Shortest Path from Source \t”+source+”\t to all other vertices are : \n”);
for(i=1;i<=nodes;i++)
if(i!=source)
System.out.println(“source :”+source+”\t destination :”+i+”\t MinCost is :”+d.distance[i]+”\t”);
}
}
/*OUTPUTiotlab@iotlab-Veriton-M200-B360:~$ javac Dijkstra.java iotlab@iotlab-Veriton-M200-B360:~$ java Dijkstra Enter the Number of Nodes
5Enter the Cost Matrix Weights:
0 1 0 2 01 0 1 0 40 1 0 0 32 0 0 0 30 4 3 3 0Enter the Source Vertex :
1The Shortest Path from Source 1 to all other vertices are :
source :1 destination :2 MinCost is :1 source :1 destination :3 MinCost is :2 source :1 destination :4 MinCost is :2 source :1 destination :5 MinCost is :5 */