LeetCode 238 Product of Array Except Self | Best Java Trick Explained WITH Visualization!

In this video, we solve *LeetCode 238 - Product of Array Except Self* using the most efficient *Java solution* (no division, O(n) time, O(1) space).
A crystal-clear visualization is included to help you understand how prefix and suffix products work together.

🔍 *What You’ll Learn:*

Problem explanation in simple terms
Why division is not allowed
How prefix & suffix arrays solve it
Clean Java code you can use in interviews
Complete step-by-step dry run

FUNCTION productExceptSelf(nums):
n = length(nums)
CREATE array left of size n
CREATE array right of size n
CREATE array result of size n

// Build left array
left[0] = 1
FOR i FROM 1 TO n-1:
left[i] = left[i-1] * nums[i-1]

// Build right array
right[n-1] = 1
FOR i FROM n-2 DOWN TO 0:
right[i] = right[i+1] * nums[i+1]

// Build result using left and right
FOR i FROM 0 TO n-1:
result[i] = left[i] * right[i]

RETURN result

```

📌 *Topics Covered:*

Java Arrays
Prefix / Suffix concepts
LeetCode patterns
Data structure interview preparation

🔥 *If you're preparing for SDET / QA Automation roles, this is a MUST-KNOW problem.*

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