NestTry.java

package chapter10;

public class NestTry {
    public static void main(String[] args) {
        try {
            int a = 2;// args.length;
            /*
             * If no command line args are present the following statement
             * will generate a divide by zero exception
             * */
            int b = 42 / a;
            System.out.println("a = " + a);

            try { //nested try block
                /*
                 * If one command  line arg is used then a divide by zero exception
                 * will be generated by the following code*/
                if (a == 1) a = a / (a - a); //division by zero

                /*If two command line args are used then generate an out of bounds exception*/
                if (a == 2) {
                    int c[] = {1};
                    c[42] = 99; //generate out of bounds exception
                }
            } catch (ArrayIndexOutOfBoundsException e) {
                System.out.println("Array Index out of bounds " + e);
            }
        } catch (ArithmeticException e) {
            System.out.println("Divide by zero " + e);
        }
    }
}