Keyboard Input Output Problems on Mac OS X

Question

Hey guys,
I'm at college studying Java, however my teacher and the rest of the class all use the Kawa IDE, I've been using Project Builder, provided with Mac OS X. Our tutor gave us a class made up of various methods which the college designed to handle keyboard Input and Output, however when I import it I get unpredictable results. I've put it online at: http://www.lostroom.co.uk/inout/
All I'm trying to do is run a simple program;
import InOut;
class CostReckoner
public static void main(String[] args)
// Declare the variables
int quantity;
double unitCost, basicCost, vatCost, totalCost;
double vatRate = 0.175;
// Input the number of items and the cost per item
System.out.print("What is the unit cost of the items?");
unitCost = InOut.readDouble();
System.out.print("How many items in the order?");
quantity = InOut.readInt();
// Calculate the cost of the order
basicCost = unitCost * quantity;
vatCost = basicCost * vatRate;
totalCost = basicCost + vatCost;
//Output the total cost of the order
System.out.println("Cost �"+InOut.format(basicCost,2));
System.out.println("Vat �"+InOut.format(vatCost,2));
System.out.println("Total �"+InOut.format(totalCost,2));
I seem to need to press space bar after I input anything, as it doesn't recognise "Return" without it. Any ideas ??
Strange thing is it seems to work fine on the PC Kawa IDE within college. Any advice you guys could offer would be really appreciated. Send me an email at: <[email protected]> if you can help.
Regards, Gareth

Answer 1

Hi thanks for your help, I tried compiling the code you gave me to read the streams, however I seem to be have problems with it.
ERROR
keys.java:18: unreported exception java.io.IOException; must be caught or declared to be thrown
n=stream.read();
HERE IS THE CODE I'M TRYING TO COMPILE
import java.io.*;
public class keys {
public static void main(String[]arguments)
BufferedInputStream stream = new BufferedInputStream(System.in);
int n=0;
while(true){
n=stream.read();
System.out.println(Integer.toHexString(n));
if (n==0x30) break;// this termination condition is optional
Any ideas ??