Java Reference
In-Depth Information
• ω signifies widening primitive conversion (§
5.1.2
)
• η signifies narrowing primitive conversion (§
5.1.3
)
• ωη signifies widening and narrowing primitive conversion (§
5.1.4
)
• ? signifies widening reference conversion (§
5.1.5
)
•
•
signifies unboxing conversion (§
5.1.8
)
In the tables, a comma between symbols indicates that a casting conversion uses one con-
version followed by another. The type
Object
means any reference type other than the eight
wrapper classes
Boolean
,
Byte
,
Short
,
Character
,
Integer
,
Long
,
Float
,
Double
.
