Question

Can you please write this java code in Scala.

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.PrintStream;
import java.net.Socket;

public class SimpleSocketClientExample
{
    public static void main( String[] args )
    {
        if( args.length < 2 )
        {
            System.out.println( "Usage: SimpleSocketClientExample <server> <path>" );
            System.exit( 0 );
        }
        String server = args[ 0 ];
        String path = args[ 1 ];

        System.out.println( "Loading contents of URL: " + server );

        try
        {
            // Connect to the server
            Socket socket = new Socket( server, 80 );

            // Create input and output streams to read from and write to the server
            PrintStream out = new PrintStream( socket.getOutputStream() );
            BufferedReader in = new BufferedReader( new InputStreamReader( socket.getInputStream() ) );

            // Follow the HTTP protocol of GET <path> HTTP/1.0 followed by an empty line
            out.println( "GET " + path + " HTTP/1.0" );
            out.println();

            // Read data from the server until we finish reading the document
            String line = in.readLine();
            while( line != null )
            {
                System.out.println( line );
                line = in.readLine();
            }

            // Close our streams
            in.close();
            out.close();
            socket.close();
        }
        catch( Exception e )
        {
            e.printStackTrace();
        }
    }
}

Answer 1

import java.io.BufferedReader

import java.io.InputStreamReader

import java.io.PrintStream

import java.net.Socket

//remove if not needed
import scala.collection.JavaConversions._

object SimpleSocketClientExample {

def main(args: Array[String]): Unit = {
    if (args.length < 2) {
      println("Usage: SimpleSocketClientExample <server> <path>")
      System.exit(0)
    }
    val server: String = args(0)
    val path: String = args(1)
    println("Loading contents of URL: " + server)
    try {
// Connect to the server
      val socket: Socket = new Socket(server, 80)
// Create input and output streams to read from and write to the server
      val out: PrintStream = new PrintStream(socket.getOutputStream)
      val in: BufferedReader = new BufferedReader(
        new InputStreamReader(socket.getInputStream))
// Follow the HTTP protocol of GET <path> HTTP/1.0 followed by an empty line
      out.println("GET " + path + " HTTP/1.0")
      out.println()
// Read data from the server until we finish reading the document
      var line: String = in.readLine()
      while (line != null) {
        println(line)
        line = in.readLine()
      }
// Close our streams
      in.close()
      out.close()
      socket.close()
    } catch {
      case e: Exception => e.printStackTrace()

    }
}

}