Can any one debug the error plz

Question

this is my prg:
import java.io.*;
import java.net.*;
class server
private final static int BUFSIZE = 20;
public static void main(String a[])
try
int port = Integer.parseInt(a[1]);
ServerSocket ss = new ServerSocket(port);
while(true)
Socket s = ss.accept();
InputStream is= s.getInputStream();
DataInputStream dis = new DataInputStream(is);
double value = dis.readDouble();
value *= value;
OutputStream os = s.getOutputStream();
DataOutputStream dos = new DataOutputStream(os);
dos.writeDouble(value);
s.close();
catch(Exception e)
System.out.println("Exception: "+e);
when i execute this program i got the below error
Exception : java.lang.arrayoutofboundsexception : 1
so plz send me the output of the prg

Answer 1

For your string arguments that you pass in when you call the app... java arrays start at 0, so if you are ding this:
myJavaApp myarg
Then you have a[0] and not a[1].
If you do this:
myJavaApp myArg1 myArg2
Then myArg1 is a[0] and myArg2 is a[1].