java Programming Glossary: widening

Is polymorphism possible without inheritance

http://stackoverflow.com/questions/11732422/is-polymorphism-possible-without-inheritance

type hierarchy. It can also be said that through primitive widening conversion the numeric operators in Java are polymorphic in.. to double. This is so because in Java we have primitive widening conversions. According to Cardelli this form of automatic coercion..

Varargs in method overloading in Java

http://stackoverflow.com/questions/12879910/varargs-in-method-overloading-in-java

or Box but you cannot do both unless you are boxing and widening to Object An int to Integer Boxing and then Integer to Object.. when Boxing Widening and Var args are combined Primitive widening uses the smallest method argument possible Wrapper type cannot.. cannot become Long You cannot combine var args with either widening or boxing So based on the above given rules When you pass two..

Why does Java implicitly (without cast) convert a `long` to a `float`?

http://stackoverflow.com/questions/1293819/why-does-java-implicitly-without-cast-convert-a-long-to-a-float

overall magnitude of a numeric value. Indeed conversions widening from an integral type to another integral type do not lose any.. at all the numeric value is preserved exactly. Conversions widening from float to double in strictfp expressions also preserve the..

Eclipse bug? When is a short not a short?

http://stackoverflow.com/questions/14297113/eclipse-bug-when-is-a-short-not-a-short

It's because when invoking a method only primitive widening conversions are authorised not primitive narrowing conversions.. of one of the following an identity conversion 禮5.1.1 a widening primitive conversion 禮5.1.2 a widening reference conversion.. conversion 禮5.1.1 a widening primitive conversion 禮5.1.2 a widening reference conversion 禮5.1.5 a boxing conversion 禮5.1.7 optionally..

Promotion in Java?

http://stackoverflow.com/questions/1660856/promotion-in-java

promoted to int so you've got byte byte byte ... becomes widening to find operator ... byte int int ... becomes result of operator.. to a numeric type the following rules apply in order using widening conversion 禮5.1.2 to convert operands as necessary If any of..

Does Java casting introduce overhead? Why?

http://stackoverflow.com/questions/2170872/does-java-casting-introduce-overhead-why

which we're interested here. Upcast operations also called widening conversions in the Java Language Specification convert a subclass..

Java code To convert byte to Hexadecimal

http://stackoverflow.com/questions/2817752/java-code-to-convert-byte-to-hexadecimal

but with some caveats. Since the parameter is an int a widening primitive conversion is performed to the byte argument which..

Is it guaranteed that new Integer(i) == i in Java?

http://stackoverflow.com/questions/2831945/is-it-guaranteed-that-new-integeri-i-in-java

to a numeric type the following rules apply in order using widening conversion 禮5.1.2 to convert operands as necessary If any of..

Java Integer division: How do you produce a double?

http://stackoverflow.com/questions/3144610/java-integer-division-how-do-you-produce-a-double

have to guess just check the JLS . int to double is a widening conversion. From 禮5.1.2 Widening primitive conversions do not..

Varargs in method overloading in Java

http://stackoverflow.com/questions/12879910/varargs-in-method-overloading-in-java

Object An int to Integer Boxing and then Integer to Object Widening is legal since every class is a subclass of Object so it is.. selecting which overloaded method to select when Boxing Widening and Var args are combined Primitive widening uses the smallest.. Box from int to Integer and widen to Object but no to Long Widening beats Boxing Boxing beats Var args. You can Box and then Widen..

Why does Java implicitly (without cast) convert a `long` to a `float`?

http://stackoverflow.com/questions/1293819/why-does-java-implicitly-without-cast-convert-a-long-to-a-float

Section 5.1.2 of the Java Language Specification says Widening primitive conversions do not lose information about the overall..

Why widening beats both Boxing and var-args in Overloading of a method?

http://stackoverflow.com/questions/2128034/why-widening-beats-both-boxing-and-var-args-in-overloading-of-a-method

of behaviour when compiled under Java 5 That would be bad. Widening conversions have been around since the dawn of Java but autoboxing..

Java code To convert byte to Hexadecimal

http://stackoverflow.com/questions/2817752/java-code-to-convert-byte-to-hexadecimal

Java Integer division: How do you produce a double?

http://stackoverflow.com/questions/3144610/java-integer-division-how-do-you-produce-a-double

JLS . int to double is a widening conversion. From 禮5.1.2 Widening primitive conversions do not lose information about the overall..