6)Write a socket program in java to check whether given file is present on server or not, If it present then display its content on the server’s machine.
S_Slip6_2.java
import java.io.*;
import java.net.*;
class S_Slip6_2
{
public static void main(String a[]) throws Exception
{
ServerSocket ss = new ServerSocket(1000);
System.out.println("Server is waiting for client : ");
Socket s =ss.accept();
System.out.println("Client is connected");
DataInputStream dis=new DataInputStream(s.getInputStream());
DataOutputStream dos=new DataOutputStream(s.getOutputStream());
String fname =(String)dis.readUTF();
File f = new File(fname);
if(f.exists())
{
System.out.println("file is exists");
FileInputStream fin = new FileInputStream(fname);
int ch;
String msg = "";
while((ch=fin.read())!=-1)
{
msg=msg+(char)ch;
}
dos.writeUTF(msg);
}
else
dos.writeUTF("0");
}
}
C_Slip6_2.java
import java.io.*;
import java.net.*;
class C_Slip6_2
{
public static void main(String a[]) throws Exception
{
Socket s = new Socket("localhost",1000);
System.out.println("client is connected : ");
DataInputStream dis=new DataInputStream(s.getInputStream());
DataOutputStream dos=new DataOutputStream(s.getOutputStream());
BufferedReader br = new BufferedReader(new
InputStreamReader(System.in));
System.out.println("Enter file name : ");
String fname = br.readLine();
dos.writeUTF(fname);
String msg = (String)dis.readUTF();
if(msg.equals("0"))
System.out.println("File not present ");
else
{
System.out.println("Content of the file is : \n");
System.out.println(msg);
}
}
}
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