/**

* This is example 2 of lab 3 in CS239 which provides practice in

* exception handling. It prints the ratio of each element in an

* array divided by its successor and avoids computing a ratio

* when the denominator would be 0.

*

* @author Dr. Bernstein

* modified by Dr. Adams

* date: September 1, 2008

*/

public class Example2_Key

{

public static void main(String[] args)

{

int i, ratio;

int[] numbers = {100,10,0,5,2,8,0,30};

i = 0;

// note that we had to stop at length-1 or we would

// have exceeded the bounds of the array

for (i=0; i < numbers.length-1; i++)

{

try

{

// divide each array element by its successor

ratio = numbers[i] / numbers[i+1];

System.out.println(numbers[i]+"/"+numbers[i+1]+"="+ratio);

} // end try

// note the use of initials of exception class

// name as identifier

catch (ArithmeticException ae)

{

// catches exception that would occur when division by

// 0 would occur because number[i+1] is 0.

System.out.println("Couldn't calculate "+

numbers[i]+"/"+numbers[i+1]);

} // end catch

}// end for

System.out.println ("Done");

} // end main

} // end class