cows | The list is just an array of strings and can be
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kandi X-RAY | cows Summary
The list is just an array of strings and can be used wherever.
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QUESTION
already sorry for my English, I'm not an English speaker. I'm trying to write a bulls and cows game. The program generates a 4-digit number and the user needs to guess the digits. If the user guessed a number and its position, it's a bull. If the user only guessed the number, its a hit. I need to send it to our teacher in 3 files: function.h, function.c and main.c
I can't figure out how to seperate the code into 3 different files. Every time I'm trying to make a function out of an action it doesn't work like the simple code. The teacher asked us to write a function for the code generator, the validating of the guess, the bulls and the hits. I would appreciate any help. Thank you so much!
the simple code:
...ANSWER
Answered 2021-Jun-14 at 02:45Here. I improved it a bit.
function.h:
QUESTION
I am running the following program. In this program, I have the Cow class, the Dragon class derived from the Cow class, and the IceDragon class derived from the Dragon class. The Cow class, the Dragon class, and the Ice dragon class are implemented in a class called HeiferGenerator. I am running the main function in a class called CowSay, where I am implementing the HeiferGenerator class along with the Cow class, Dragon class, and IceDragon class. However, look below at the HeifeferGenerator class. I am getting the warning "Raw use of parameterized class 'Class' " on the line:
...ANSWER
Answered 2021-Mar-31 at 16:38TL;DR: Do you HAVE to use arrays? If not, use lists
Replace this:
Constructor constructor = dragonTypes[index].getConstructor(String.class, String.class);
With this:
Constructor constructor = dragonTypes.get(index).getConstructor(String.class, String.class);
And this:
private static final Class[] dragonTypes = {Dragon.class, Dragon.class};
With this:
private static final List> dragonTypes = Arrays.asList(Dragon.class, Dragon.class);
QUESTION
I have an object which contains two different object types, I am trying to map it to another object which will contain a single list.
In this simple minimal reproducible example I have created a zoo class which contains a list of animals this is the destination. The source is the MammelHouse class which contains lists of pig and cow objects.
My issue is when I try to add the pigs to the list then it over writes the already written cows. I need both objects to be added to this list.
My current solution is to map each object type alone and then add them to the main object, as my actual application has ten different types currently this is not an optimal solution. I am hoping that there is a way to solve this with automapper directly.
current mapping attempt ...ANSWER
Answered 2021-Jun-04 at 11:24Add a common interface IMammel to Cowand Pig and then use Concat
Model
QUESTION
I'm looking at this code which is a very simple library with just one file and mostly tests, so it's short. There's a struct that I'm trying to understand:
...ANSWER
Answered 2021-Apr-27 at 18:03I think
CowStris aCowwith'staticlifetime otherwise it'd be hard or impossible to store strs inside the map.
Well yes and no, you can store &'static str inside a hashmap with no issue, the problem is that you can't store both &'static str and String.
Am I rigth? If so, why simply not use String, so we can get rid of lifetimes and thus transmute?
I assume that is an optimisation: with String you'd have to create an allocation every time you want to insert a challenge in the map, but if the overwhelming majority of challenge names would be Digest and Basic then that's a waste of time (and memory but mostly time), but at the same time you'd have to support String for custom auth schemes.
Now maybe in the grand scheme of things this is not an optimisation which actually matter and it'd be better off not doing that, I couldn't tell you.
I don't like unsafe, and reading about transmute it looks very unsafe.
It's a debatable thing to do, but in this case it's "safe", in the sense that the reference is valid for the entirety of the HashMap::get call and we know that that call doesn't keep the reference alive (it's reliance on an implementation detail which is a bit risky, but the odds that that would change are basically nil as it wouldn't make much sense).
Extending lifetimes is not in-and-of-itself UB (the mem::transmute documentation literally provides an example doing that), but requires care as you must avoid it causing UBs (the most likely being a dangling reference).
QUESTION
To make it easier to visualize my problem I drew the following:
I am using a RoomDatabase, a Repository, a Viewmodel and Livedata. Areas have a 1 to n relationship with Gateways and Gateways a 1 to n relationship with Items. I created both an AreaWithGateways entity and a GatewayWithItems entity.
Items can move from a gateway to another, which is why I observe them with Livedata to keep track of which Gateway they're in. My problem now is that I found myself in need to also keep track of which Items are in which Areas and I can't figure out how to do that.
I've thought of merging the LiveData of each Gateway together and observing that using MediatorLiveData but I didn't really understand how to use it. Or maybe it's possible to create an Entity AreaWithGatewayswithItems?
Any insight would be appreciated
Edit: I am adding some code to make the problem a bit clearer
This is the Area Entity
...ANSWER
Answered 2021-Apr-14 at 00:43Or maybe it's possible to create an Entity AreaWithGatewayswithItems?
Not an Entity as these are used to define tables BUT via POJO's using @Embedded and @Relation annotation (e.g. your GatewayWithCows is a POJO).
I feel like I should somehow use AreaWithGateways to add the LiveData items together but I can't reach the items through the gateways, it has to be the other way around.
You basically use a hierarchical approach but POJO's so as you have GatewayWithCows then relate to this from Area as per :-
QUESTION
let cows = 4;
let width = 4;
let string = cows.toString();
while(string.length < width) {
string = "0" + string;
}
console.log(string);
ANSWER
Answered 2021-Mar-31 at 09:37So, at the start, your string is "4".
Then you enter the while loop, and your string becomes "04".
The condition isn't met yet, so you loop and add another '0' to the beginning of your string, becoming "004".
You loop one more time, adding again '0' to the start of the string, making it "0004".
Here your condition is met, and you exit the loop.
To obtain the result you had in mind, something like this would've worked
QUESTION
I am using kableExtra to generate an Rmarkdown table (in Rstudio 1.2.1335, Windows 10). One of the cells ends up with it's value pushed to another line which messes up the line spacing (see image below). The odd part is that if I manually replace that cell value in the matrix with another value, it sometimes fixes it, depending on the replacement value. My code is below (I have tried and failed to make a reproducible example - the problem only seems to crop up with my actual data).
...ANSWER
Answered 2021-Mar-17 at 17:34I have identified the issue (thanks to the issues posted here, here, and here).
The problem is that when two rows in the table are identical, a \vphantom{1} is inserted into the LaTex code for the first identical row, to differentiate the two identical rows. I noticed this when I examined the Latex file - the first row of the table was
QUESTION
I am a beginner and reading C primer plus. There's a place I can't understand. I know that constant can't be changed throughout the program, and when I read this:
...ANSWER
Answered 2021-Mar-13 at 04:21By the statement int hogs = 21 is a constant, the author simply means that an integer variable 'hogs' has been declared and it has been initialized with a constant value 21.
Similarly with "The various integers(21, 32, 14, and 94) are integer constants" statement - author means that the other integer variables have been initialized with constant values 32, 14 and 94 respectively.
Your understanding of the const keyword is absolutely right, the const keyword is used to declare a constant integer variable - the variable which can be declared only once and whose value does not change.
QUESTION
Developing an application in C# using a MySQL database. It involves cows and their weights. When displaying the cows details in a table, I want to display all of the animal's details as well as their last weight.
I have two tables used for this: 'Cattle' and 'Weights'. Each animal has a unique ID and this ID is used as foreign key in weights table along with the date taken and what they weighed. Up to now the way I am doing it is getting the MAX(Date) in the weights table and using a left join however if animal wasn't weighed on that date then it won't be included. I could use each animals MAX(Weight) however some animals may drop in weight due to illness etc.
...ANSWER
Answered 2021-Mar-12 at 13:17If you select for the Max(Date) found on the join, instead of searching a specific Date (Where clause), you will always get the results. Not exactly sure if this is what is asked.
QUESTION
Been trying to get a ViewModel using a SavedStateModel working for ages now. Please tell me I'm missing something completely obvious, I've gone down to a very basic activity and still can't work it out. It persists going back to the home screen and back in (though I guess that's a ViewModel thing in general) but not when the app is killed.
Here's the Android Studio project zipped up, sorry for my stupidity not providing it in the first place: https://www.slasheethecow.com/code/MooSavedState.zipEdit: Rather than having to copy/paste all of those I zipped up the Android Studio project. Removed a bunch of other (more complicated) activities and such but I'm pretty sure it'll still work.
Here's the activity, CowSaved.kt:
...ANSWER
Answered 2021-Mar-05 at 10:00Posted this over on reddit and apparently I was mooing up the wrong tree all the time to begin with, SavedState apparently isn't for this like I thought it was.
Sorry to anyone who spent their time going through this!
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