Is there a way to verify the existence of an Array Field?

For JavaScript, the code would look like this:

if (array[x] != undefined && array[x][y] != undefined) {
    array[x][y] = "foo";
}

Is there an equivalent simple method for achieving this in Java?
I have tried checking if the field is null or not, but that doesn't seem to work. Additionally, the concept of 'undefined' does not appear to function in Java.

Answer №1

It is recommended to check the size of the array before manipulating its elements:

if (x < array.length && y < array[x].length) {
    array[x][y] = "foo";
}

Additionally, consider adding checks for x and y being greater than zero to avoid potential issues.

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