Multidimensional Arrays

Question

Heyya,
assuming I have this method:

public void array() {
int[][] ar = {{1,2,3,4},{5,6,7,8},{9,0,1,2}};
for(int x = 0; x<ar.length; x++) {
for(int y = 0; y<4; y++) {
System.out.println(ar[x][y]);
}
}
}
Is there a way to automate y? Thanks ^^

Answer 1

ooh i see, the only thing you should do is edit your expression in your second for loop (nested loop) to arr[x].length

public class Program {
public static void main(String[] args) {
int[][] ar = {{1,2,3,4},{5,6,7,8,9},{9,0,1,2}};
for(int x = 0; x < ar.length; x++) {
for(int y = 0; y < ar[x].length; y++) {
System.out.print(ar[x][y]);
}
System.out.print("\n");
}
}
}

Answer 2

what do you mean with automate ?

Answer 3

Your method is widely used. You could make a function if you are going to be doing it for many arrays.

Answer 4

I made this for JavaScript.

https://code.sololearn.com/WUjc4VsDLsTM/?ref=app

Answer 5

By automate I mean if there is a way to get the length of each part of the array. Right now if I use ar.length it will be 3 because there are three arrays within the array. But how can I figure out the length of each of these arrays ^^

Answer 6

Ohh ok thank you ^^