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Arithmetic promotion

Shiva Mohan
Ranch Hand

Joined: Jan 05, 2006
Posts: 477



in line 1,found int ;required byte error is displaying.but i thought

How come found int;required byte error is coming .i just expected found Double,required byte.
Keith Lynn
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Joined: Feb 07, 2005
Posts: 2367
Since the types of the operands are byte, both are promoted to int before the operation.
Dustin Johnson
Greenhorn

Joined: Nov 14, 2006
Posts: 22
K&B Book Pg. 182...

"...but more importantly, the result of an expression involving anything int-sized or smaller[i.e. byte] is always an int"

I believe the code is converting them both into int sized values automatically to try and perform the mathematical operation.
[ March 08, 2007: Message edited by: Dustin Johnson ]

SCJA 86%<br />SCJP 5.0 98%<br />SCWCD 1.4 79%<br />SCBCD 5.0 83%<br />--------------------------------<br />"I drank what???" - Socrates
Barry Gaunt
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Joined: Aug 03, 2002
Posts: 7729
Don't ever write a program with variable names like that in your real working life. If you are not fired, leave immediately.


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