def generate$\_$alphabet$\_$array$($n$,$ s$)$:

if s $==$ "INC":

array $=[[$chr$($ord$(\text{'}$a$\text{'})+$ j$)$ if j $<=$ i else $\text{'}\text{'}$ for j in range$($n$)]$ for i in range$($n$)]$

elif s $==$ "DEC":

array $=[[$chr$($ord$(\text{'}$a$\text{'})+$ j$)$ if j $<=$ i else $\text{'}\text{'}$ for j in range$($i$,$ n$)]$ for i in range$($n$)]$

else:

print$("$Invalid input for the type of array $($s$).$ Please use 'INC' or 'DEC'."$)$

return None

return array

def print$\_$array$($array$)$:

for row in array:

print$(\text{'}\backslash$t$\text{'}.$join$($row$))$

# Taking user input

n $=$ int$($input$("$Enter the number of rows $($n$)$: $"))$

s $=$ input$("$Enter the type of array $($INC$/$DEC$)$: $").$upper$()$

# Generating and printing the array

result$\_$array $=$ generate$\_$alphabet$\_$array$($n$,$ s$)$

if result$\_$array:

print$("$

The generated array is:$")$

print$\_$array$($result$\_$array$)$

In Java