A 2-dimensional array of ints , has been created and assigned to a2d. Write an expression whose value is the number of elements in the first row. (Assume the array is not empty.)

LANGUAGE: JAVA

CHALLENGE:

A 2-dimensional array of ints , has been created and assigned to a2d. Write an expression whose value is the number of elements in the first row. (Assume the array is not empty.)