awk command in a bash script

#!/bin/bash 
myfile="myfile.dat"
cat $myfile
echo

echo -e "\nRow sum: method 1"
awk 'BEGIN{j=1;}{
for (i=1; i<=NF; i++) 
rowsum[j]+=$i; 
j++;
};
END{
for (k in rowsum)
print "the sum of row "k" is " rowsum[k];
}' $myfile

echo -e "\nColumn sum: method 1"
awk 'BEGIN{;}{
for (i=1; i<=NF;i++) 
colsum[i]+=$i;}; 
END{
for (k in colsum) print "the sum of column "k" is " colsum[k];
}' $myfile

 

mydata.dat file

124 127 130
112 142 135
175 158 245
118 231 147