1l for long, 1f for float, 1d for double, what about byte?

Question

long l = 1l;
float f = 1f;
double d = 1d;
// byte b = 1?;

What's the equivalent for byte? Does it exist?

Is http://www.herongyang.com/Java/Byte-Data-Type-Implicit-Casting.html of any help? — lucian.pantelimon, Mar 29 '13 at 10:52

score 7 · Accepted Answer · answered Mar 29 '13 at 10:52

7

No, there is no suffix you can append to a numeric literal to make it a byte.

See 3.10 Literals in the Java Language Specification.

answered Mar 29 '13 at 10:52

Jesper

anubhava · Answer 2 · 2013-03-29T11:10:58.140

4

You need to cast to byte like this:

byte b = 1;

b = (byte) 5;

Since by default these numeric constant are treated as int in Java.

edited Mar 29 '13 at 11:10

answered Mar 29 '13 at 10:52

anubhava

1

Except that it is not necessary in this case, because the literal is a compile-time constant. `byte b = 1;` is perfectly legal. – Jesper Mar 29 '13 at 10:53
2

yes, `byte b=1` works fine, unfortunately for every other operation but the initialization the cast is again necessary. Even the seemingly harmless `b+=1`. I understand that this must be like this, it's just... annoying to cast everytime – GameDroids Mar 29 '13 at 10:57

score 1 · Answer 3 · edited Mar 29 '13 at 11:21

1

there is no suffix you can append a numeric literal

edited Mar 29 '13 at 11:21

Anthon

answered Mar 29 '13 at 10:53

PSR

Mark Rotteveel · Answer 4 · 2013-03-29T12:09:36.320

1

There is no such suffix for bytes, see the Java Language Specification section 3.10.1:

DecimalIntegerLiteral:
    DecimalNumeral IntegerTypeSuffix(opt)

IntegerTypeSuffix: one of
    l L

Note (opt) signifies it is optional. So to assign you need to explicitly cast using (byte) 1.

edited Mar 29 '13 at 12:09

answered Mar 29 '13 at 10:53

Mark Rotteveel

4 Answers4