Length is: 3
The length of a 2D array is the number of rows it has. The row index runs from 0 to length-1.
Each row of a 2D array can have a different number of cells,
so each row has its own length:
uneven[0] refers to row 0 of the array,
uneven[1] refers to row 1, and so on.
class unevenExample3
{
public static void main( String[] arg )
{
// declare and construct a 2D array
int[][] uneven =
{ { 1, 9, 4 },
{ 0, 2},
{ 0, 1, 2, 3, 4 } };
// length of the array (number of rows)
System.out.println("Length of array is: " + uneven.length );
// length of each row (number of its columns)
System.out.println("Length of row[0] is: " + uneven[0].length );
System.out.println("Length of row[1] is: " + uneven[1].length );
System.out.println("Length of row[2] is: " + uneven[2].length );
}
}