A two-dimensional array is like a big grid of boxes

A two-dimensional array is like a big grid of boxes, just like a chessboard or a classroom seating chart where kids sit in rows and columns.

What It Is

It's a bunch of items lined up in rows that go side to side and columns that go up and down. Each little box in the grid can hold one thing, like a number or a picture.

• Rows are the horizontal lines, like lines of desks.
• Columns are the vertical lines, like seats next to each other.

Everyday Example

Imagine a classroom full of students.

• Front row, middle row, back row—that's the rows.
• Window seat, middle seat, door seat—that's the columns.
• To pick one kid, you say "second row, third seat." That's how you find the exact box!

Versus a One-Line Array

A one-dimensional array is like kids standing in a single straight line—just "first kid, second kid."

• A 2D array makes a rectangle shape with many lines, so you can organize way more stuff neatly.

In Code (for Grown-Ups)

You make one with rows and columns, like a 3x4 grid (that's 12 boxes).

• Grab stuff from it like grid—row 2, column 3 (numbers start at 0).