Answered: Catch exceptions for array index out of…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

This is a debugging question -

The files provided in the code editor to the right contain syntax and/or logic errors. In each case, determine and fix the problem, remove all syntax and coding errors, and run the program to ensure it works properly.

Code I fixed but seem to be missing a check, I will add a screenshot -

// Catch exceptions for array index out of bounds

// or dividing by 0

import java.util.*;

public class DebugTwelve3

{

public static void main(String[] args)

{

Scanner input = new Scanner(System.in);

String inStr;

int num, result;

int[] array = {12, 4, 6, 8};

System.out.println("Enter a number ");

inStr = input.nextLine();

try {

num = Integer.parseInt(inStr);

for (int x = 0; x < array.length; ++x) {

result = array[x] / num;

System.out.println("Result of division is " + result);

}

result = array[num];

System.out.println("Result accessing array is " + result);

} catch (ArithmeticException error) {

System.out.println("Arithmetic error - division by 0");

} catch (IndexOutOfBoundsException error) {

System.out.println("Index error - subscript out of range");

} catch (NumberFormatException error) {

System.out.println("Format error - invalid input string");

}

Test Case
Incomplete
L.
Valid array index
Input
2
Output
Enter a number
2
Result of division is 6
Result of division is 2
Result of division is 3
Result of division is 4
Result accessing array is 6
>

Result of division is 6
Result of division is 2
Result of division is 3
Result of division is 4
Result accessing array is 6
Results
Result of division is 6
Result accessing array is 6
Result of division is 2
Result accessing array is 6
Result of division is 3
Result accessing array is 6
Result of division is 4
Result accessing array is 6
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