Create a program that can send take a file's name, last modified date, and size, then send it to another computer(or local host if a second computer is unavailable) through a TCP connection into "output.txt". Here is a TCP piece that I have: import java.io.*; import java.net.Socket; import java.net.SocketException; import java.net.UnknownHostException;

public class TCPClientFile { private Socket socket = null; private DataInputStream inStream = null; private DataOutputStream outStream = null;

public TCPClientFile() { }

public void createSocket() { try { //connect to localHost at given port # socket = new Socket("INSERT LOCAL HOST NAME OR IP HERE", 3339); System.out.println("Connected"); //fetch the streams inStream = new DataInputStream(socket.getInputStream()); outStream = new DataOutputStream(socket.getOutputStream()); } catch (Exception u) { u.printStackTrace(); } }

public void receiveFile() { byte [] data = null; //decide the max buffer size in bytes //a typical value for a tcp payload is 1000 bytes, this is because of //the common MTU of the underlying ethernet of 1500 bytes //HOWEVER their is no optimal value for tcp payload, just a best guess i.e. 1000 bytes final int MAX_BUFFER = 1000; try { //read the size of the file <- coming from Server long fileSize = inStream.readLong(); int bufferSize=0; //decide the data reading bufferSize if(fileSize > MAX_BUFFER) bufferSize = MAX_BUFFER; else bufferSize = (int)fileSize; data = new byte[bufferSize]; //insert the path/name of your target file FileOutputStream fileOut = new FileOutputStream("INSERT FILE NAME HERE",true); //now read the file coming from Server & save it onto disk long totalBytesRead = 0; while(true) { //read bufferSize number of bytes from Server int readBytes = inStream.read(data,0,bufferSize);

byte[] arrayBytes = new byte[readBytes]; System.arraycopy(data, 0, arrayBytes, 0, readBytes); totalBytesRead = totalBytesRead + readBytes; if(readBytes>0) { //write the data to the file fileOut.write(arrayBytes); fileOut.flush(); }

//stop if fileSize number of bytes are read if(totalBytesRead == fileSize) break; //update fileSize for the last remaining block of data if((fileSize-totalBytesRead) < MAX_BUFFER) bufferSize = (int) (fileSize-totalBytesRead); //reinitialize the data buffer data = new byte[bufferSize]; } System.out.println("File Size is: "+fileSize + ", number of bytes read are: " + totalBytesRead); socket.close(); fileOut.close(); inStream.close(); } catch(Exception e) { e.printStackTrace(); } } public static void main(String[] args) throws Exception { TCPClientFile fileClient = new TCPClientFile(); fileClient.createSocket(); fileClient.receiveFile(); }}