Java Question Why this code give me a error?

Question

byte a = 10;
byte b = 15;
byte c = a + b;
System.out.print (c);

I dont know why...

Answer 1

Both a and b are byte type(1byte) variable which is smaller than int type (4byte)
So + operator convert a and b to int type before calculation.
Therefore the result of a + b will be int type.
You assign int type value(a + b) to byte type variable(c) without casting.
So it makes error...

Answer 2

Maybe you should do like

byte c = (byte)(a + b);

or

int c = a + b;

Answer 3

@ Legacy
Thanks I think u r right..