The question is quite simple but I can't find the answer.
I'm using j2me.
I have an integer array of 9 elements.
After all the computations now I want to print it or show it in a form.
It is something like Integer.toString(); for use with an array?
I know I can use a loop but I want to know if it's a faster way.
Use a loop but don't use the String + operator. Use StringBuffer.append().
Related
If I have an array with elements linked to xassets with names like "card1", "card2", etc up to "card100" is there a quicker way to write these elements in the array format without having to write out all 100?
Also if this has been answered already please let me know or link to it. About 2 days into trying to teach myself to program.
Not exactly sure what you're asking but you may want to look at loops - Swift Loops. You can add items to an array in a for loop from 1 to 100.
Is this what you are looking for ?
let cards = Array(1...100).map({"card\($0)"})
This question already has answers here:
How to copy end of the Array in swift?
(6 answers)
Closed 6 years ago.
Swift's implementation of arrays is throwing me for a loop again! (Haw, haw.) All I want is to take an array of arbitrary length and get a new array (or an array slice) from it that has the first element removed.
Why is this so hard?
I just want to be able to do something like this:
let suffix = someArray.suffixFrom(1)
But I can't figure out how to do this. It seems the closest method I've found requires knowing the length of the array, which I don't know because it's computed inline and I really really hate having to split such a simple concept up into a bunch of variables and lines.
Elaboration:
I have a string split by colons (:) and I just want to create a Set containing all the :-delimited components excluding the first one.
So that a string "one:two:three" would return a set containing ["two", "three"]. Since I can create a Set from an array, all I really need is to get the suffix of the array, but I don't know how many components there are because it's inline:
return Set(attributeName?.componentsSeparatedByString(":").suffixFrom(1))
Why does Swift make this so hard?
Edit: Before a bunch of you suggest it, I'm well aware I could extend the array class to do this myself, but I'm writing a framework and I don't want to do that, and I also don't want to have to write a bloody utility function to do something so darned simple.
The CollectionType.dropFirst(_:) does exactly what you need, with the exact syntax you're looking for.
let suffix = someArray.dropFirst(1)
I'm working with GUIDE on MATLAB. In my GUI, there is a text field in which the user is to enter an array of numbers. How can I convert this into a form that can be used to perform calculations? Basically my question is how can a string like "[1 1 1]" be converted into an array? (I'm working with integers from the range of 0-360 so string-'0' doesn't work for me.)
You can use this:
a = str2num('[1 1 1]')
Not sure what you meen by "string-'0' doesn't work for me" though.
I have some data in an integer[] Native Array and I want to perform ArrayAppend / ArrayDeleteValue operations on it. I've noticed that this fails silently in Railo 3.3 because the native array types are fixed length (you can change values but not add/remove).
The question is can I convert a native array to a regular coldfusion/railo array object without doing iteration on it? Is there some kind of built-in function/method for this or do I have to write my own?
I found one way. railo_array = ArrayMerge([], my_native_array). Not sure if there's a better way.
Is it possible to create a multidimensional array of gtkwidgets? Specifically something like this:
mywidgetlist[2]["title"];
Or should I be doing this in a different way? How would I do this?
Basically I have a number of "widgets" (Loaded from gtkbuilder) composed of smaller widgets and I want to be able to change certain values, so this array setup seems preferable.
Is there another way of doing this (Other than actually coding a complete widget using signals etc and placing them in a simple array?)
In C, you cannot use a string to index into an array. Or, strictly speaking you can, but it's almost never what you want to do.
For C solution using glib (handy if you already use GTK+), consider a single-dimensional array of GHashTable pointers.