MethNestTry.java

package chapter10;

public class MethNestTry {

    static void nesttry(int 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);
        }
    }

    public static void main(String[] args) {

        try {
            int a = 1; //args.length;
            /*If no command line args are presented the following statement will generate
             * a divide by zero exception */
            int b = 42 / a;
            System.out.println("a = " + a);
            nesttry(a);
        } catch (ArithmeticException e) {
            System.out.println("Divide by zero " + e);
        }


    }
}