def average$\_$even$\_$numbers$($arr$)$:

sum $=0$

count $=0$

for i in range$($len$($arr$))$:

for j in range$($len$($arr$[$i$]))$:

if arr$[$i$][$j$]\%2==0$:

sum $+=$ arr$[$i$][$j$]$

count $+=1$

return sum $/$ count Write code in java