Write Java statements for performing the following tasks with a 2D array named values that has 20 rows and 30 columns. a. Declare the array values.

b. Fill all entries with 0.

c. Fill elements alternately with 0s and 1s in a checkerboard pattern.

d. Fill only the elements at the top and bottom row with zeroes.

e. Compute the sum of all elements.

f. Print the array in tabular form

(Hint: you could use the method System.out.printf()).