Thread: error in my exception handling program. unable to understand this program , please help. Thanx in advance

package javaapplication6;
import java.util.Scanner; 
public class JavaApplication6 {
 
    public static void main(String[] args) {
 
          int a,b,c;
          int arr[] = new int[4];
          Scanner ob  = new Scanner(System.in);
          System.out.println("Enter 2 nums");
          a = ob.nextInt();
          b= ob.nextInt();
try
{
    arr[b] = 100;
    c=a/b;
    System.out.println(c);
}catch(Exception e )
{
  //  System.out.println("Error "+e.getMessage());
    if(e.instanceof ArithmeticException)
    {
        System.out.println("Divide by zero");
    }
    if(e.instanceof ArrayIndexOutOfBounds)
    {
 
        System.out.println("Index not valid");
 
    }
 }
}
}

Are you getting any error messages? What do you think
the issue is? Btw, please use code tags when posting code
Thank you.

Wishes Ada xx

Debugged your code and got this:

<Identifier>Expected after expression on this line of code:

if(e.instanceof ArithmeticException)

Basically, the compiler was looking for something on that line
(or near it) that should of been there. Generally referred to as a
'symbol'. Check the code and make sure your are using the correct
symbol names when calling instances and make sure all the ones that
expected to be visible at compile-time are visible.

Wishes Ada xx

Originally Posted by CruiseDevice

Is there any connection between packages and exception handling in java. Means is it necessary to create a package before trying exception handling examples?

No. A package is used to 'pack' a group of project files together that then form
the application. Every source file related to that application must have the same
package name as all the other source files. Packages are very useful in having
larger applications that contain various classes. It's a bit like C++ where classes
have "header files" and the header file had to have the same name as the source file
in order for the compiler to find it.

Wishes Ada xx