2D Array

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#AP Computer Science A Study Guide

#2D Arrays

Quick Fact

💡 A 2D array in Java is essentially an array of arrays, forming a table-like structure with rows and columns.

#Declaration and Initialization

Declaration: To declare a 2D array, you specify the data type, followed by two sets of square brackets (one for rows, one for columns), and the array name.

java int[][] matrix; // Declar...

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Question 1 of 6

Alright, let's get started! 🚀 Which of the following is the correct way to declare a 2D array of integers in Java?

int array[][];

int[][] array;

array int[][];

int[ , ] array;