autoboxing

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How to spot boxing/unboxing in Scala

Following a suggestion by extempore recently about how to get scala to tell me whether there was boxing going on by looking at the bytecode, I created this class:[详细]

2023-03-16 03:25 分类：问答
How to set -Euwc param with axis2-wsdl2code-maven-plugin?

We are using axis2 to generate web-service clients, (I regret this now!). With axis2 command-line tool you can pass switch -Euwc to wrap int into Integer, boolean into Boolean and so on in generated s[详细]

2023-03-09 06:09 分类：问答
Why are so few things @specialized in Scala's standard library?

I\'ve searched for the use of @specialized in the source code of the standard library of Scala 2.8.1. It looks like only a handful of traits and classes use this annotation: Function0, Function1, Func[详细]

2023-02-20 09:57 分类：问答
Java : autoboxing of an Object array of integers, cast to int from LinkedList.toArray()

I would like to use code similar to the following: int letterIndex[]; LinkedList<Integer> letterList;[详细]

2023-02-19 21:46 分类：问答
double and Integer conversion

I am trying to figure this out: double chiSquare = ((double)(hashtable.get(key).intValue()/noWords))/* * Math.log10((NO_DOCUMENTS/all.get(key)))*/;[详细]

2023-02-16 09:21 分类：问答
Java Primitive Implementation

Java has both object, Integer, and primitive version, int, of basic types. The primitive versions are faster/lighter/etc. so in general you should use them.[详细]

2023-02-16 03:45 分类：问答
Why do the Integer.valueOf(...) comparisons in this example return different values?

From the answer to a ques开发者_如何学Gotion about primitive types and autoboxing in java: for biziclop:[详细]

2023-02-15 10:11 分类：问答
Why do people still use primitive types in Java?

Since Java 5, we\'ve had boxing/unboxing of primitive types so that int is wra开发者_运维知识库pped to be java.lang.Integer, and so and and so forth.[详细]

2023-02-15 09:38 分类：问答
Comparing doubles in Java gives odd results

I really can\'get my head around why the following happens: Double d = 0.开发者_C百科0; System.out.println(d == 0); // is true[详细]

2023-02-15 06:35 分类：问答
Perl autoboxing in conjunction with operator overloading doesn't seem to work?

I\'m attempting to use both Perl\'s autoboxing functionality and operator overloading functionality, and they don\'t seem to be working in tandem.[详细]

2023-02-13 15:09 分类：问答