Add bytes with type casting, Java

Question

I am trying to add two values in a byte array. This is my code:

byte[] ars = {3,6,9,2,4};
ars[0] = (byte)ars[0] + (byte)ars[4];
System.out.println( ars[0] );         


        

Answer 1

close, but a little off.

ars[0] = (byte)(ars[0] + ars[4]);

keep in mind ars[0] and ars[4] are already bytes, so there is no need to cast them to bytes.

Instead, cast the result of the summation to a byte.