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    A 2D array in Java is essentially an array of arrays, used to store data in a rows and columns format, similar to a table or matrix. Each element is accessed using two indices: one for the row and one for the column.

    Example: Creating and printing a 2D array

    public class Main {
    public static void main(String[] args) {
    int[][] arr = { {1, 2}, {3, 4} };

    for (int i = 0; i < arr.length; i++) { // Loop through rows
    for (int j = 0; j < arr[i].length; j++) { // Loop through columns
    System.out.print(arr[i][j] + " ");
    }
    System.out.println();
    }
    }
    }
    Gekopieerd.

    Output:

    1 2
    3 4
    Gekopieerd.

    Here, arr[0][1] would give 2 and arr[1][0] would give 3.

    Declaring and Initializing

    • Declaration:

    int[][] matrix;
    Gekopieerd.

    • Initialization with size:

    matrix = new int[3][4]; // 3 rows, 4 columns
    Gekopieerd.

    • Inline initialization:

    int[][] matrix = { {1, 2, 3}, {4, 5, 6} };
    Gekopieerd.

    Accessing Elements You can access or modify elements using:

    matrix[rowIndex][colIndex] = value;
    int val = matrix[rowIndex][colIndex];
    Gekopieerd.

    Remember: Indices start at 0, so the first row is index 0.

    User Input Example

    How to create a multi-dimensional array in Java?
    First, import the Scanner class from the java.util package at the top of the program. Then create a Scanner class object. Then give a prompt to user to enter the size of row and column. Then create a nested loop to take input from user to add element in the multi-dimensional array.
    geeksforgeeks.org
    W3School
    https://www.w3schools.com/java/java_arrays_multi.asp
    Java Multi-Dimensional Arrays - W3Schools
  1. GeeksForGeeks
    https://www.geeksforgeeks.org › java › multidimensional-arrays-in …Dit resultaat vertalen

    Java Multi-Dimensional Arrays - GeeksforGeeks

    14 mrt. 2026 · Follow the steps mentioned below to create a two-dimensional array with user input: First, import the Scanner class from the java.util package at the top of the program. Then create a Scanner …

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  3. W3School
    https://www.w3schools.com › java › java_arrays_multi.aspDit resultaat vertalen

    Java Multi-Dimensional Arrays - W3Schools

    Multidimensional Arrays A multidimensional array is an array that contains other arrays. You can use it to store data in a table with rows and columns. To create a two-dimensional array, write each row …

    Praktijkvoorbeeld
    int[][] myNumbers = { {1, 2, 3, 4}, {5, 6, 7} };
  4. Programiz
    https://www.programiz.com › java-programmin…Dit resultaat vertalen

    Java Multidimensional Array (2d and 3d Array) - Programiz

    In this tutorial, we will learn about the Java multidimensional array using 2-dimensional arrays and 3-dimensional arrays with the help of examples. A …

  5. TutorialsPoint
    https://www.tutorialspoint.com › java › java_multi_dimensional_arr…Dit resultaat vertalen

    Java Multi-Dimensional Arrays - Online Tutorials Library

    Creating a 2D Array In Java, we can declare a two-dimensional array in multiple ways, but the correct and most common way to declare a two-dimensional array is as follows:

  6. javaspring.net
    https://www.javaspring.net › blogDit resultaat vertalen

    Creating 2D Arrays in Java: A Comprehensive Guide

    16 jan. 2026 · Understanding how to create and work with 2D arrays is crucial for various applications, such as matrix operations, representing game boards, or handling data in a multi-dimensional context.

  7. Dot Net Perls
    https://www.dotnetperls.comDit resultaat vertalen

    Java - 2D Array Examples - Dot Net Perls

    1 okt. 2024 · Step 1 We introduce a two-dimensional array of width 4 and height 4—a little square. Step 2 We assign some elements with the array at indexes (two are required, an X and a Y). Step 3 Here we …

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  9. Ruby-Doc.org
    https://ruby-doc.org › blog › two-dimensional-arr…Dit resultaat vertalen

    Two Dimensional Array in Java – The Ultimate Guide …

    5 aug. 2025 · This article dives deep into the concept of a two dimensional array in Java, explaining what it is, how to declare and initialize it, and practical examples …

  10. Examples Java Code Geeks
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    2D Array Java Example - Examples Java Code Geeks

    5 mrt. 2014 · This example consists of a Maven project which includes a tutorial about 2D array for declaration, creation, initialization, assigning, accessing, and …

  11. The Developer Blog
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    Java 2D Array Examples - The Developer Blog

    To understand 2D arrays, we need to review several steps. The syntax for 2D arrays uses 2 values to address an element. Step 1: We introduce a two-dimensional …

  12. GeeksForGeeks
    https://www.geeksforgeeks.org › javaDit resultaat vertalen

    Different Ways To Declare And Initialize 2-D Array in Java

    23 jul. 2025 · We can say that any higher dimensional array is an array of arrays. A very common example of a 2D Array is Chess Board. A chessboard is a grid …

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