A Board class stores pieces in a 2D array but does not check bounds before accessing. What problem can occur when accessing board[-1][0]?

medium📝 Analysis Q7 of 15

LLD - Design — Chess Game

A Board class stores pieces in a 2D array but does not check bounds before accessing. What problem can occur when accessing board[-1][0]?

AAutomatically resizes the board

BReturns the last row's first piece

CReturns null without error

DAn index out of bounds error or exception

Step-by-Step Solution

Solution:

Step 1: Understand array indexing rules
Negative indices are invalid in most languages and cause errors.
Step 2: Consequence of no bounds check
Accessing negative index without check triggers index out of bounds error.
Final Answer:
An index out of bounds error or exception -> Option D
Quick Check:
Negative index access = error [OK]

Quick Trick: Always check array bounds before access [OK]

Common Mistakes:

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