The Java Language Specification, Third Edition

CONVERSIONS AND PROMOTIONS Binary Numeric Promotion 5.6.2
// A char&byte is promoted to int&int:
byte b = 0x1f;
char c = 'G';
int control = c & b;
System.out.println(Integer.toHexString(control));
// Here int:float is promoted to float:float:
f = (b==0) ? i : 4.0f;
System.out.println(1.0/f);
}
}
which produces the output:
7
0.25
The example converts the ASCII character G to the ASCII control-G (BEL), by
masking off all but the low 5 bits of the character. The 7 is the numeric value of
this control character.
DRAFT
O suns! O grass of graves! O perpetual transfers and promotions!
of Grass
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