cleanup code

1. URL/URLClass.java

@@ -0,0 +1,17 @@
+import java.net.URL;
+
+public class URLClass {
+
+  public static void main(String args[]) {
+    try {
+      URL url = new URL(
+          "https://www.google.co.in/search?sxsrf=ACYBGNTlCg6stXRWj6XfKxNBgxecqLRJiQ%3A1572264736726&source=hp&ei=INu2XfvqKYPzvAT4ho_oAQ&q=go&oq=go&gs_l=psy-ab.3..35i39l2j0i131l3j0l5.19302.19387..19663...0.0..0.125.239.0j2......0....1..gws-wiz.9sac5rg-3P0&ved=0ahUKEwj7-v3I9r7lAhWDOY8KHXjDAx0Q4dUDCAY&uact=5");
+      System.out.println(url.getProtocol());
+      System.out.println(url.getHost());
+      System.out.println(url.getPort());
+      System.out.println(url.getFile());
+    } catch (Exception e) {
+      System.out.println(e);
+    }
+  }
+}

10. Two Way Communication using TCP/TwoWayTcpClient.java

@@ -0,0 +1,29 @@
+import java.io.DataInputStream;
+import java.io.DataOutputStream;
+import java.net.Socket;
+import java.util.Scanner;
+
+public class TwoWayTcpClient {
+
+  public static void main(String[] args) throws Exception {
+    Scanner scan = new Scanner(System.in);
+    Socket s = new Socket("localhost", 5656);
+    DataOutputStream dout = new DataOutputStream(s.getOutputStream());
+    DataInputStream dis = new DataInputStream(s.getInputStream());
+    while (true) {
+      System.out.println("Write Your message");
+      String str = scan.nextLine();
+      dout.writeUTF(str);
+      dout.flush();
+      if (str.equals("bye")) {
+        dout.close();
+        s.close();
+        break;
+      }
+      String str1 = (String) dis.readUTF();
+      System.out.println("Server Messaged--->" + str1);
+
+
+    }
+  }
+}

10. Two Way Communication using TCP/TwoWayTcpServer.java

@@ -0,0 +1,32 @@
+import java.io.DataInputStream;
+import java.io.DataOutputStream;
+import java.net.ServerSocket;
+import java.net.Socket;
+import java.util.Scanner;
+
+public class TwoWayTcpServer {
+
+  public static void main(String[] args) throws Exception {
+    ServerSocket ss = new ServerSocket(5656);
+    Socket s = ss.accept();
+    Scanner scan = new Scanner(System.in);
+    DataOutputStream dout = new DataOutputStream(s.getOutputStream());
+    DataInputStream dis = new DataInputStream(s.getInputStream());
+    while (true) {
+      String str = dis.readUTF();
+      System.out.println("Client--->" + str);
+      if (str.equals("bye")) {
+        System.out.println("Client Messaged .... BYE..Exiting");
+        dis.close();
+        s.close();
+        ss.close();
+        break;
+      }
+      System.out.println("Enter your message:");
+      String str1 = scan.nextLine();
+      dout.writeUTF(str1);
+      dout.flush();
+    }
+
+  }
+}

11. Two Way Communication Local/MyClient.java

@@ -1,27 +1,28 @@
-import java.net.*;
-import java.io.*;
-import java.util.*;
-public class MyClient{
-	public static void main(String[] args)throws Exception{
-	Socket s=new Socket("192.168.43.153",6666);
-	DataOutputStream dout=new DataOutputStream(s.getOutputStream());
-	DataInputStream din=new DataInputStream(s.getInputStream());
-	Scanner scan=new Scanner(System.in);
-	while(true)
-	{
-		System.out.println("Enter Your message.");
-		String str=scan.nextLine();
-		dout.writeUTF(str);
-		dout.flush();
-		if(str.equals("bye"))
-		{
-			dout.close();
-			s.close();
-			break;
-		}
-		String str1=(String)din.readUTF();
-		System.out.println("Server--->"+str1);
-
-	}
-	}
+import java.io.DataInputStream;
+import java.io.DataOutputStream;
+import java.net.Socket;
+import java.util.Scanner;
+
+public class MyClient {
+
+  public static void main(String[] args) throws Exception {
+    Socket s = new Socket("192.168.43.153", 6666);
+    DataOutputStream dout = new DataOutputStream(s.getOutputStream());
+    DataInputStream din = new DataInputStream(s.getInputStream());
+    Scanner scan = new Scanner(System.in);
+    while (true) {
+      System.out.println("Enter Your message.");
+      String str = scan.nextLine();
+      dout.writeUTF(str);
+      dout.flush();
+      if (str.equals("bye")) {
+        dout.close();
+        s.close();
+        break;
+      }
+      String str1 = (String) din.readUTF();
+      System.out.println("Server--->" + str1);
+
+    }
+  }
 }

11. Two Way Communication Local/MyServer.java

@@ -1,31 +1,32 @@
-import java.net.*;
-import java.io.*;
-import java.util.*;
-public class MyServer{
-	public static void main(String[] args) throws Exception
-	{
-		ServerSocket ss=new ServerSocket(6666);
-		Socket s=ss.accept();
-		DataInputStream dis=new DataInputStream(s.getInputStream());
-		DataOutputStream dout=new DataOutputStream(s.getOutputStream());
-		Scanner scan=new Scanner(System.in);
-		while(true)
-		{
-			String str=(String)dis.readUTF();
-			System.out.println("Client--->"+str);
-			if(str.equals("bye"))
-			{
-				System.out.println("Client Said Bye exiting");
-				dis.close();
-				dout.close();
-				s.close();
-				ss.close();
-				break;
-			}
-			System.out.println("Enter Your Message");
-			String str1=scan.nextLine();
-			dout.writeUTF(str1);
-			dout.flush();	
-		}
-	}
+import java.io.DataInputStream;
+import java.io.DataOutputStream;
+import java.net.ServerSocket;
+import java.net.Socket;
+import java.util.Scanner;
+
+public class MyServer {
+
+  public static void main(String[] args) throws Exception {
+    ServerSocket ss = new ServerSocket(6666);
+    Socket s = ss.accept();
+    DataInputStream dis = new DataInputStream(s.getInputStream());
+    DataOutputStream dout = new DataOutputStream(s.getOutputStream());
+    Scanner scan = new Scanner(System.in);
+    while (true) {
+      String str = dis.readUTF();
+      System.out.println("Client--->" + str);
+      if (str.equals("bye")) {
+        System.out.println("Client Said Bye exiting");
+        dis.close();
+        dout.close();
+        s.close();
+        ss.close();
+        break;
+      }
+      System.out.println("Enter Your Message");
+      String str1 = scan.nextLine();
+      dout.writeUTF(str1);
+      dout.flush();
+    }
+  }
 }

12. Multithreaded Server/Client.java

@@ -1,29 +1,29 @@
-import java.io.*;
-import java.net.*;
-import java.util.*;
-public class Client{
-	public static void main(String[] args) throws Exception
-	{
-		Socket s=new Socket("localhost",6666);
-		DataOutputStream dout= new DataOutputStream(s.getOutputStream());
-		DataInputStream din=new DataInputStream(s.getInputStream());
-		Scanner scan=new Scanner(System.in);
-		while(true)
-		{
-			String strrecived=din.readUTF();
-			System.out.println("Server Messaged:"+strrecived);
-			System.out.println("Write Your Message");
-			String strtosend=scan.nextLine();
-			dout.writeUTF(strtosend);
-			dout.flush();
-			if(strtosend.equals("Exit"))
-			{
-				System.out.println("Client "+s+" is exiting");
-				s.close();
-				din.close();
-				dout.close();
-				break;
-			}
-		}
-	}
+import java.io.DataInputStream;
+import java.io.DataOutputStream;
+import java.net.Socket;
+import java.util.Scanner;
+
+public class Client {
+
+  public static void main(String[] args) throws Exception {
+    Socket s = new Socket("localhost", 6666);
+    DataOutputStream dout = new DataOutputStream(s.getOutputStream());
+    DataInputStream din = new DataInputStream(s.getInputStream());
+    Scanner scan = new Scanner(System.in);
+    while (true) {
+      String strrecived = din.readUTF();
+      System.out.println("Server Messaged:" + strrecived);
+      System.out.println("Write Your Message");
+      String strtosend = scan.nextLine();
+      dout.writeUTF(strtosend);
+      dout.flush();
+      if (strtosend.equals("Exit")) {
+        System.out.println("Client " + s + " is exiting");
+        s.close();
+        din.close();
+        dout.close();
+        break;
+      }
+    }
+  }
 }

12. Multithreaded Server/ClientHandler.java

@@ -0,0 +1,43 @@
+import java.io.DataInputStream;
+import java.io.DataOutputStream;
+import java.net.Socket;
+
+/**
+ * @author Deki on 03.10.2020
+ * @project Networking_In_Java
+ **/
+public class ClientHandler extends Thread {
+
+  Socket s;
+  DataInputStream dis;
+  DataOutputStream dout;
+  String strrecieved = "", strsent = "", name;
+
+  public ClientHandler(Socket s, String name, DataInputStream dis, DataOutputStream dout) {
+    this.s = s;
+    this.dis = dis;
+    this.dout = dout;
+    this.name = name;
+  }
+
+  @Override
+  public void run() {
+    try {
+      while (true) {
+        dout.writeUTF("What is your name? Written already write Exit.");
+        strrecieved = dis.readUTF();
+        if (strrecieved.equals("Exit")) {
+          System.out.println("Client " + this.s + " EXITED");
+          this.s.close();
+          this.dis.close();
+          this.dout.close();
+          break;
+        }
+        System.out.println("Client Messaged " + strrecieved);
+      }
+    } catch (Exception e) {
+      System.out.println(e);
+    }
+
+  }
+}