primitive Questions
6
Solved
I'm learning how to use OCMock to test my iPhone's project and I have this scenario: a HeightMap class with a getHeightAtX:andY: method, and a Render class using HeightMap. I'm trying to unit test ...
5
Solved
Why do generics in Java work with classes but not with primitive types?
For example, this works fine:
List<Integer> foo = new ArrayList<Integer>();
but this is not allowed:
List<...
2
Solved
According to the ES5.1 spec, the program "use strict;" "foo".bar = 42; causes a String object to be created, assigns to a property on it, and then throws the object away, result...
Nonparticipation asked 5/4, 2018 at 22:46
2
Solved
I've been reading up on Google Protocol Buffers recently, which allows for a variety of scalar value types to be used in messages.
According to their documentation, there's three types of variable...
Caruncle asked 19/4, 2009 at 19:12
6
Solved
There are related questions, such as How can I pass in 2 parameters to a AsyncTask class? , but I ran into the difficulty of trying in vain to pass multiple primitives as parameters to an AsyncTask...
Churchwoman asked 22/8, 2012 at 9:4
6
Solved
In the Android API http://developer.android.com/guide/topics/data/data-storage.html#pref
It says:
Shared Preference allows you to save and retrieve persistent key-value
pairs of primitive dat...
Scissure asked 23/1, 2013 at 6:8
6
On this site they say there are 10 LISP primitives.
The primitives are: atom, quote, eq, car, cdr, cons, cond, lambda, label, apply.
http://hyperpolyglot.wikidot.com/lisp#ten-primitives
Stevey ...
Fatherland asked 14/8, 2010 at 7:12
1
Solved
I've been reading through The Rust Programming Language, but I've been unable to find a clear answer on what the best practice is for type annotation, specifically with primitive types.
For exampl...
1
Solved
By default, for "type": "boolean" in JSON spec, Swagger will generate a Boolean (object, non-primitive, nullable) field in model.
Is there a way to make Swagger generate boolean (primitive, non-nul...
Eadith asked 7/7, 2017 at 12:1
1
Solved
I'm trying to convert 2D list to a 2D int array. However, it seems I can only collect objects, not primitives.
When I do:
data.stream().map(l -> l.stream().toArray(int[]::new)).toArray(int[][]...
Ineluctable asked 1/6, 2017 at 1:42
4
Solved
I'm receiving this error using the following javascript code:
function tempTest(evt) {
alert(evt.currentTarget.id);
ct = document.getElementById(evt.currentTarget.id);
rslt = document.getElemen...
Plasmodium asked 12/7, 2011 at 15:59
2
I am very new to Java having always issue with data types. So what are the default values for all data types in Java?
6
Solved
So this works:
int i;
Object a = (Object) i;
int[] t;
Object b = (Object) t;
String[] s;
Object[] t = (Object[]) s;
But this does not:
int[] t;
Object[] z = (Object[]) t;
All in all I get the...
3
Solved
I searched it all over the web, but all the answers just consisted of the difference. I know the difference, but I don't understand the difference in their applications.
For example, suppose we h...
1
Solved
Primitives are at it again, breaking rules, I learned before. Well not technically primitive but composed of them.
I learned that whenever there's no method more specific than rest, compile time e...
Wheel asked 23/3, 2017 at 13:41
10
Solved
1
Solved
I have a SimpleIntegerProperty which should be able to store null. However, this is not possible, as written in the JavaDoc of IntegerProperty:
Note: setting or binding this property to a null ...
5
Solved
I did some profiling on my application and one of the results turned out that about 18% of memory on the heap is used by objects of type Double. It turns out these objects are the values in Maps, w...
2
Solved
I'm reading the advanced R introduction by Hadley Wickham, where he states that [ (and +, -, {, etc) are functions, so that [ can be used in this manner
> x <- list(1:3, 4:9, 10:12)
> sap...
9
Solved
I wanted to make sure about something in Java:
If I have a Character or an Integer or a Long and those sort of things, should I use equals or is == sufficient?
I know that with strings there are n...
3
Solved
If I have the following code:
function MyClass() {
this.data = {
// lots of data
};
}
var myClassInstace = new MyClass();
var myobj = {
num:123,
str:"hello",
theClass:myClassInstance
};
...
Middlebuster asked 6/11, 2016 at 17:29
2
Solved
Why can I do this:
short a = 5;
But not this:
void setNum(short a);
setNum(5);
It throws:
Possible lossy conversion from int to short
I understand that 5 is an integer literal and you h...
1
Solved
Why is this legal TypeScript?
var x: number = 5
var y: Object = x
Surely a number is not an Object. One might suspect that x is implicitly coerced (auto-boxed) to an object, but no:
if (!(y ins...
Topsail asked 18/9, 2016 at 20:30
3
Solved
I was going through the code behind some of the basic types in Rust, e.g. the pleasantly simple implementation of Option<T> or the weird macro magic behind tuple and I was able to find all of...
4
Solved
I'm trying to determine the type of a field on an object. I don't know the type of the object when it is passed to me but I need to find fields which are longs. It is easy enough to distinguish the...
Baucis asked 11/12, 2009 at 23:43
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