I want to compare two array lists, when i press list1 items, open list2 items in new activity.please help me. i have write below code but not working. please solve my problem.I want to compare two array lists, when i press list1 items, open list2 items in new activity.please help me. i have write below code but not working. please solve my problem.
//My String-array
<string-array name="Alphabets1">
<item>A</item>
<item>B</item>
<item>C</item>
<item>D</item>
<item>E</item>
<item>G</item>
<item>H</item>
<item>I</item>
<item>J</item>
</string-array>
<string-array name="Lyrics1">
<item>Aakaashamandunna </item>
<item>Bangaram Adagaledu</item>
<item>Cheyi Pattuko</item>
<item>Devara Nee Devenalu</item>
<item>Ella velalandu kastha</item>
<item>Gaganamu Cheelchukoni</item>
<item>Hallelujah Hallelujah</item>
<item>Ide Naa Korika</item>
<item>Janminchenu Oka Thaara</item>
</string-array>
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You actually have a few problems to solve here. One of them is the difference between ArrayLists and arrays - I'm pretty sure you mean arrays here, since ArrayLists only hold objects, and there wouldn't be much point in forcing autoboxing and unboxing for a slower-access collection. But maybe you mean ArrayLists because you want the built-in expandability, I don't know. Something for you to determine.
I'd start with one of the sub-problems: combining two arrays or arraylists, preferring non-zero values. You'll do about the same thing with different syntax in each case.
Write a method int[] combine(int[] firstArray, int[] secondArray) to walk two arrays simultaneously and combine the values you find. You'll have to figure out what the correct behavior is when you have two non-zero values. (or are you simply summing the arrays? that'd be pretty easy)
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First question on stackoverflow :)
I'm going through the Ruby course on Codecademy and I'm stuck on something.
fruits = ["orange", "apple", "banana", "pear", "grapes"]
fruits.sort! {|first, second| second <=> first}
print fruits
I don't know how to phrase this question. On Codecademy the assignment was to set up the array to be displayed in reverse on the console. After some research, I was able to figure it out. I understand how it works and the order to put it in the code not why. I'm aware that "<=>" compares two objects, but how do the items within the array become objects when we don't declare them as such?
Secondly, what is the purpose of writing this code in this way when we could do fruits.sort.reverse?
First question: At various points in its operation the sort method has to compare pairs of objects to see what their relative ordering should be. It does the comparison by applying the block you pass to sort, i.e., {|first, second| second <=> first}. Not sure what you mean by "how do the items within the array become objects when we don't declare them as such?". All data in ruby is an object, so there's no declaration or conversion needed given that all variables are object references.
Second question: Yes, you could do fruits.sort.reverse, but that would require additional work after the sort to do the reverse operation. Also, reverse can't handle more complex sorting tasks, such as sorting people by multiple criteria such as gender & last name, or hair color, height, and weight. Writing your own comparator can handle quite complex orderings.
String literals can be used to create string objects in Ruby, there is no need to use the String class to create the object. The following two are equivalent:
"Hello, world!"
String.new("Hello, world!")
More information can be found here.
Secondly, what is the purpose of writing this code in this way when we could do fruits.sort.reverse?
Please contact Codecademy about this, but I suspect it's for learning more about how <=> works.
I want my swift code to create buttons using colors. I know I want to declare array but some of the things I have tried are not working. What I tried below is not working. I have tried to do various forms of wrapping but it did not work. The goal of this code is to not use any storyboards and do everything by code.
var red,blue = UIButton()
One compact way to declare two variables in one line is to use tuple notation:
let (red,blue) = (UIButton(), UIButton())
Perhaps that's what you're asking for. But there is no array in the story; it's hard to see why you mention arrays in the first place.
On the other hand, if you really do want an array as you claim, then it's hard to see what the names red and blue are for, since the elements of an array do not have names (with regard to the array). You could make an array of two new buttons by saying:
let arrayOfTwoButtons = (0..<2).map {_ in UIButton()}
I have two 1D arrays that gives an array of points on the XY plane. What I am trying to achieve is to find that steps interpolation for which values is exactly 0.5. I've tried to solve it using Interpolate 1D array and Threshold 1D array but no success. The first only returns values information for which steps == 0.5 and the latter is not doing anything apparently, returning 0 always.
I've attached the front panel and block diagram to the post. On the front panel I indicated which information I need.
Could you please help me figure out what I am doing wrong here? Because I'm quite stuck with this. Thank you in advance.
Kudos for solving it yourself, but a vi post of the solution would be appreciated for further reference by other people. Here is a solution that uses the 1D interpolation from the mathematics section. One VI, only downside is that you need to convert you interpolation value to an array and the answer back.
I managed to solve it. Threshold 1D array vi cannot deal with arrays that contain decreasing values... a rather frustrating error, as I need to transform the array so that the characteristics become increasing to obtain the interpolated value.
From the documentation:
Note Use this function only with arrays sorted in non-descending
order.
I am creating a Sudoku project in vb.net, to such an end I need to store a list of all the possibilities for each square where the squares are indexed by one number. for example the computer needs to know that for square [8] the numbers {1,3,5,9} are possible etc... I began by using a jagged array however there is no apparent 'remove' method which needs to be called a lot. this makes my code looks ugly with all the redim statements in it and so I was curious as to whether a list or arraylist would be best suited to my purposes? I have discovered arraylists have a remove method but I have also read that array lists are all but deprecated and i want to know if there is a nicer solution to this.
this is the problematic:
I got a master array, it's an array that have all the entities in the game.
When an entity (unit, building, etc) dies, I remove that entity from the array.
Now, I got other several arrays that are "subgroups" from that array. Like, enemyEntities, alliedEntities, movingEntities, etc. Everytime I create a new entity I add it to the corresponding array.
Everything works ok, but, when I remove one element from the master array, I'd like to somehow automatically remove it from the other arrays, let say, in an elegant way.
Any ideas?
Have a remove-method which takes care of it all. Make it first remove it from the master array, and then from each sub arrays (if the object is found). A nicer way of doing it might be to put all arrays in a another array, and do that to each of them in a loop.