[JAVA 2D ARRAY] How to declare contents of row and column separately

Question

I’m doing a lab and I’m stuck with trying to store the ‘ROW’ and ‘COLUMNS’ in separate variables for a 2D array.

Unfortunately although there might be simpler alternatives, this is how I’m instructed to do it.

The array will be initialised later in a different class.
For now all I need to do is store a variable named ‘row’ with a couple numbers, and another variable named ‘columns’ with a couple values also.

The variables have already been instanced as shown below, and now I will put the values of array row & column in a method.
- int row
- char column

What’s the best way I can do this please?

Answer 1

I think this is you want Raj Grewal

int[][] _2d = new int[8][10];

int arr[] = {1,2,3,4,5};
int arr1[] = {6,7,8,9,0};

_2d[0]=arr;
_2d[1]=arr1;

System.out.println(_2d[0][2]);
System.out.println(_2d[1][2]);

Answer 2

I don’t believe Jagged Array is what i’ll need akshay harshora.

The array will have 8 rows and 10 columns later, all I need to do is store the row in a variable named ‘int row’ and then store the values ‘[1,2,3,4,5,6,7,8,9,10]’

The variables won’t point to the 2D array yet, just storing for when I use the method later.

Answer 3

int[] columns;
// values of one row
int[][] row;

// add couple of values like
columns = ...
row[0] = columns;