w can I Combining two concepts, Threads and Networking, in one java application Server( ‏mport java.io.; ‏import java.net. ; ‏import java.util.Scanner; ‏public class Server{ ‏public static void main (String arg[]) throws Exception { ‏/1.connection/ ‏ServerSocket serverSocket = new ServerSocket(6789); ‏Socket connectionSocket = serverSocket.acceptO; ‏/2. A scanner or a BufferedReader for reading from the socket / ‏Scanner scanner = new Scanner(connectionSocket.getInputStreamO); ‏/3. A DataOutputStream object to write in the socket/ ‏DataOutputStream outToClient = new DataOutputStream (connectionSocket.getOutputStream) ‏/4. reading from the socket/ ‏String clientSentence = scanner.nextLine0; ‏System.out.printin("Received: " + clientSentence); ‏/5. modification of the sentence/ ‏String modifiedSentence=clientSentence.toUpperCaseO; ‏/6. writing in the socket/ ‏outToClient.writeBytes(modifiedSentence+'(n'); ‏/7.closing connections/ ‏scanner.close©; ‏connectionSocket.closeO; } } Client ( import java.io. import java.net.* import java.util.Scanner; public class Clientf public static void main(String argv[]) throws Exception { /1. Connection/ Socket connectionSocket = new Socket ("localhost", 6789); Scanner scanner, scannerFromSocket; DataOutputStream outToServer; String sentenceFromServer; String clientSentence; 2. Scanner to read from keyboard / scanner

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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How can I Combining two concepts, Threads and Networking, in one java application Server( ‏mport java.io.*; ‏import java.net. *; ‏import java.util.Scanner; ‏public class Server{ ‏public static void main (String arg[]) throws Exception { ‏/*1.connection*/ ‏ServerSocket serverSocket = new ServerSocket(6789); ‏Socket connectionSocket = serverSocket.acceptO; ‏/*2. A scanner or a BufferedReader for reading from the socket */ ‏Scanner scanner = new Scanner(connectionSocket.getInputStreamO); ‏/*3. A DataOutputStream object to write in the socket*/ ‏DataOutputStream outToClient = new DataOutputStream (connectionSocket.getOutputStream) ‏/*4. reading from the socket*/ ‏String clientSentence = scanner.nextLine0; ‏System.out.printin("Received: " + clientSentence); ‏/*5. modification of the sentence*/ ‏String modifiedSentence=clientSentence.toUpperCaseO; ‏/*6. writing in the socket*/ ‏outToClient.writeBytes(modifiedSentence+'(n'); ‏/*7.closing connections*/ ‏scanner.close©; ‏connectionSocket.closeO; } } Client ( import java.io. import java.net.* import java.util.Scanner; public class Clientf public static void main(String argv[]) throws Exception { /*1. Connection*/ Socket connectionSocket = new Socket ("localhost", 6789); Scanner scanner, scannerFromSocket; DataOutputStream outToServer; String sentenceFromServer; String clientSentence; *2. Scanner to read from keyboard */ scanner = new Scanner(System.in); /*3. Scanner to read from the socket */ scanner FromSocket = new Scanner (connectionSocket.getInputStream)); /*4. DataOutputStream to write in the socket */ outToServer = new DataOutputStream (connectionSocket.getOutputStream0); /*5. receiving and sending messages*/ clientSentence=scanner.nextLine0; outToServer.writeBytes(clientSentence+\n'); sentenceFromServer-scannerFromSocket.nextLine0; System.out.printin(sentenceFromServer); scanner FromSocket.closeO; scanner.close0; connectionSocket.close0; } }

Expert Solution

Step 1 Introduction to threads and networking

It is defined as the main thread. In java all the programs will be having atleast one thread that is known as main thread.

This will be created by the Java Virtual Machine (JVM) at the program’s start, when the main() method is invoked with the main thread.

Creating a thread is accomplished by implementing an interface and extending a class. Every Java thread is created and controlled by the java.lang.Thread class.

Java is a premier language for network programming. java.net package encapsulate large number of classes and interface that provides an easy-to use means to access network resources.