Java - multi arrays - The primitive type int of row does not have a field col

Question

I am trying to print a string of the multi arrays but it's says "The primitive type.." Here is the code:

int[][] nums={ {1,2,3} , {4,5,6} };
    String result = "" ;
    for (int row =0; row < nums.length; row++) { // iterate rows
        for (int col=0; col < nums[row].length; col++) { // iterate col of each row
        result = result + nums[row,col] ; // add value and TAB
        }
        result = result + "/t" ; // add NEW LINE for each row
        }
    result = result +  "/n" ;   }

I don't understand why it says that row does not have field col.

Thanks To All of you,

Answer 1

You have to replace nums[row,col] on nums[row][col]

Code:

public class Main {

    public static void main(String[] args) {
        int[][] nums = {{1,2,3}, {4,5,6}};
        String result = "";
        for (int row = 0; row < nums.length; row++) { // iterate rows
            for (int col=0; col < nums[row].length; col++) { // iterate col of each row
                result = result + nums[row][col] ; 
            }
            result = result + "/t"; // add value and TAB
        }
        result = result +  "/n" ; // add NEW LINE for each row
        
        System.out.println(result);
    }
}

Console:

123/t456/t/n

---

PS: /t and /n you can replace on \t (tab) and '\n' (new line)

and also move some lines to the loop:

Code:

public class Main {

    public static void main(String[] args) {
        int[][] nums = {{1,2,3}, {4,5,6}};
        String result = "";
        for (int row = 0; row < nums.length; row++) { // iterate rows
            for (int col=0; col < nums[row].length; col++) { // iterate col of each row
                result = result + nums[row][col] + "\t"; // add value and TAB
            }
            result = result +  "\n" ; // add NEW LINE for each row
        }
        
        System.out.println(result);
    }
}

Console:

1   2   3   
4   5   6