Question

I have an array int[][] r = new int[10][1000]

I want to remove any null values in the array and collapse it.

so if the array is {{5,3,null,2,null,80,90,348,38,null,...},...}

I want it to be {{5,3,2,80,90,348,38,...},...} (the length is changed as well)

I’m not looking for code or for you to do it for me, but can you point me in the right direction? I searched and couldn’t find anything like this.

Answer 1

Yup –

1. iterate the array and count the non-null elements
2. declare a new array with a size found in (1), and add to it only non-null elements.

btw, you can’t have null elements in int array