import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

/**
* More issues with exception handling
* @author gtowell
* Created: Feb 11, 2020
*/
public class CatchErr3
{
    /**
    * OK-ish exception handling.  The issue here is that the try covers too much ground
    * 1.  There are two completely different exceptions in two different places
    * 2. The exception wraps the while loop.  Hence, when thrown, the while loop exits.
    * This may be desired, but may not .. and it should not be done this way if is is desired
    * @param args Unused.
    */
    public static void main(String[] args)
    {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        int prev=10;
        try {
            while (prev>=0) {
                System.out.print("Enter a number: ");
                String line = br.readLine();
                int data = Integer.parseInt(line);
                System.out.println(data + " / " + prev + " = " + (data / prev));
                prev=data;
            }
        }
        catch (IOException ioe){
            System.err.println("Problem reading from keyboard" + ioe);
        }
        catch(NumberFormatException e) { 
            System.out.println("That's not a number!");
        }
    }
}