Java: 2-Dimensional Array

By Xah Lee. Date: .

2-Dimensional Arrays

The syntax to declare 2-dimensional array is this TypeOrClass[][].

public class Ar2 {
    public static void main(String[] args) {

        // declaring that xx is a 2-dimensional array
        int[][] xx;

        // give the variable a value, and declare its dimensions.
        xx = new int[3][2];

        // assign a value to a array slot
        xx[0][0] = 6;

        System.out.print(xx[0][0]); // prints the value of a slot
        System.out.println();
        System.out.print(xx[0].length); // prints the length of a row
    }
}

Java, data structures, array, collection, map