Networking, TCP client and Server

Author: sathishmepco

Networking/.classpath

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+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="src" path="src"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
+	<classpathentry kind="output" path="bin"/>
+</classpath>

Networking/.project

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+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>Networking</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+	</natures>
+</projectDescription>

Networking/.settings/org.eclipse.jdt.core.prefs

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+eclipse.preferences.version=1
+org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
+org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
+org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.debug.lineNumber=generate
+org.eclipse.jdt.core.compiler.debug.localVariable=generate
+org.eclipse.jdt.core.compiler.debug.sourceFile=generate
+org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
+org.eclipse.jdt.core.compiler.source=1.8

Networking/bin/com/cdac/networking/NetworkInfo.class

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+package com.cdac.networking;
+
+import java.net.InetAddress;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.net.UnknownHostException;
+
+public class NetworkInfo {
+	
+	public static void main(String[] args) throws UnknownHostException, MalformedURLException {
+		InetAddress inetAddress = InetAddress.getByName("google.com");
+		System.out.println("Host Name : "+inetAddress.getHostName());
+		System.out.println("Host Address : "+inetAddress.getHostAddress());
+		
+		inetAddress = InetAddress.getByName("facebook.com");
+		System.out.println("Host Name : "+inetAddress.getHostName());
+		System.out.println("Host Address : "+inetAddress.getHostAddress());
+		
+		URL url = new URL("http://localhost:8080/testApp");
+		System.out.println("Protocol : "+url.getProtocol());
+		System.out.println("Host : "+url.getHost());
+		System.out.println("Port No : "+url.getPort());
+		System.out.println("Path : "+url.getPath());
+		System.out.println("Default Port : "+url.getDefaultPort());
+		System.out.println("End of the Program");
+	}
+}

Networking/bin/com/cdac/networking/TCPClient.class

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+package com.cdac.networking;
+
+import java.io.DataInputStream;
+import java.io.DataOutputStream;
+import java.io.IOException;
+import java.net.Socket;
+import java.net.UnknownHostException;
+import java.util.Scanner;
+
+public class TCPClient {
+	
+	public static void main(String[] args) throws UnknownHostException, IOException {
+		Scanner scanner = new Scanner(System.in);
+		String ipAddress = "localhost";
+		int portNumbe = 5500;
+		Socket socket = new Socket(ipAddress, portNumbe);
+		
+		DataInputStream dis = new DataInputStream(socket.getInputStream());
+		DataOutputStream dos = new DataOutputStream(socket.getOutputStream());
+
+		String line = "";
+		while ( !line.equals( "Stop"))
+		{
+			System.out.println("Send msg to Server :: ");
+			line = scanner.nextLine();
+			dos.writeUTF(line);
+			String strFromServer = dis.readUTF();
+			System.out.println("Server says :: "+strFromServer);
+		}
+		
+		dis.close();
+		dos.close();
+		socket.close();
+	}
+}

Networking/bin/com/cdac/networking/TCPServer.class

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+package com.cdac.networking;
+
+import java.io.DataInputStream;
+import java.io.DataOutputStream;
+import java.io.IOException;
+import java.net.ServerSocket;
+import java.net.Socket;
+import java.util.Scanner;
+
+public class TCPServer {
+	
+	public static void main(String[] args) throws IOException {
+		Scanner scanner = new Scanner(System.in);
+		int portNumber = 5500;
+		
+		ServerSocket server = new ServerSocket(portNumber);
+		System.out.println("Server is waiting for the client.");
+		Socket socket = server.accept();
+		System.out.println("Client is connected.");
+		
+		DataInputStream dis = new DataInputStream(socket.getInputStream());
+		DataOutputStream dos = new DataOutputStream(socket.getOutputStream());
+		
+		String line = "";
+		while ( !line.equals( "Stop"))
+		{
+			String strFromClient = dis.readUTF();
+			System.out.println("Client Says :: "+strFromClient);
+			System.out.println("Enter Server Reply :: ");
+			line = scanner.nextLine();
+			dos.writeUTF(line);
+		}
+		
+		dis.close();
+		dos.close();
+		server.close();
+		socket.close();
+	}
+}