Finding the index of a multidimensional array?

Question

What would be the last valid index for this array?

double[][] array = new double[11][17];

@AfzaalAhmadZeeshan: 17th element of each of the 11 arrays... — Jon Skeet
– Jon Skeet, Commented Nov 7, 2014 at 20:54
This was a quiz question and i was just confused because it was multidimensional. I know that the last index of the row is 10 and 16 for the column i just wasn't sure if you put it like 10 and 16 or if i was supposed to combine them or something. — Nick1995Carp
– Nick1995Carp, Commented Nov 7, 2014 at 22:01

Elliott Frisch · Accepted Answer · 2014-11-07 20:56:55Z

2

The answer is [10][16], let's see how in code.

public static void main(String[] args) {
    double[][] array = new double[11][17];
    for (int i = 0; i < array.length; i++) {
        for (int j = 0; j < array[i].length; j++) {
            System.out.printf("[%d][%d]%n", i, j);
        }
    }
}

And the last line of output is

[10][16]

Or, you could remember that array indexes start at 0 and the last element of an array is at the length of the array - 1.

answered Nov 7, 2014 at 20:56

Elliott Frisch

202k20 gold badges166 silver badges265 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

Finding the index of a multidimensional array?

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related