sorting

问题 I'm trying to create a program which will visualize different sorting algorithms by drawing a set of bars representing an array along for each time the sort loops. However, when I set the array from within the sorter class which in turn repaints the panel, it seems that it only calls paintComponent() for the first and last iteration, not showing the steps in between. Here is the sort code which calls the setNumberArray() method: public void bubbleSort() { int[] x = getNumberArray(); boolean

问题 I'm trying to sort an array of names alphabetically (Croatian in this case). How can I get Đani to show up before Derrick ? $names = array( "Đani", "Bill", "Dennis", "George", "Derrick" ); sort($names); print_r($names); 回答1: You need to set the locale appropriately, probably like this: setlocale(LC_ALL, 'hr_HR'); And then tell sort to honor the locale: sort($names,SORT_LOCALE_STRING); 回答2: If you can, you can import them into a MySQL table and use the ORDER BY clause to sort, provided you set

问题 i have sorted the data on the basis of name. but when i am going to sort the data of arraylist of hash map on the basis of "date", i have no idea how to solve it. my Method for sort by name is given below. protected ArrayList<HashMap<String, String>> setListOrderByName(ArrayList<HashMap<String, String>> menuItems2) { Collections.sort(menuItems2, new Comparator<HashMap<String, String>>() { public int compare(HashMap<String, String> mapping1, HashMap<String, String> mapping2) { return mapping1

问题 I am trying ot sort a JSON Object using Python . I have the following object : { "text": "hello world", "predictions": [ {"class": "Class 1", "percentage": 4.63}, {"class": "Class 2", "percentage": 74.68}, {"class": "Class 3", "percentage": 9.38}, {"class": "Class 4", "percentage": 5.78}, {"class": "Class 5", "percentage": 5.53} ] } And I want to have this object instead : { "text": "hello world", "predictions": [ {"class": "Class 2", "percentage": 74.68}, {"class": "Class 3", "percentage": 9

问题 I am using sort both on Mac OS X and Ubuntu Linux, and I am observing a different handling of uppercase/lowercase comparisons. On Mac OS X, sort (GNU coreutils) 5.93 gives the behavior I expect: $ sort <<EOF > Aa > aa > Ab > ab > EOF Aa Ab aa ab On Ubuntu, sort (GNU coreutils) 8.5 seems to ignore case: $ sort <<EOF > Aa > aa > Ab > ab > EOF aa Aa ab Ab Is there a way to disable this behavior? I need case-sensitive sort. I tried to change the LOCALE to C and nothing changed. Alternatively, is

问题 I am using Collections.shuffle(list); to shuffle a list but I don't know how to unshuffle it?I was thinking of saving the list before shuffling and then shuffle it so that a backup is maintained and can re restored whenever required ,but this seems like a inefficient way of doing it and will take up time and memory ....if you know a more logical way of doing it,can you please elaborate it ?? by the way here is how my app looks :D 回答1: There's no such concept of unshuffling - after you've

问题 I am facing this problem involving dataframes, so after spending a lot of time on Google, I am opening a question here. I am having a Dataframe - df A B C D 0 8 3 6 2 1 1 -3 5 2 2 4 9 5 10 3 2 -4 -8 -2 I want to sort every row in descending order, but instead of saving the values , I want to save the corresponding column name. Sorted dataframe would look like this - df A B C D 0 8 6 3 2 1 5 2 1 -3 2 10 9 5 4 3 2 -2 -4 -8 What I ultimately want is this structure below, which corresponds to the

问题 I have two dataframes consisting a similar type of informatio. I'm attempting to merge them toghether and reorganize them. Here is a sample of the dataframes: df1 = Member Nbr Name-First Name-Last Date-Join 20 Zoe Soumas 2011-08-01 3128 Julien Bougie 2011-07-22 3535 Michel Bibeau 2015-02-18 4116 Christopher Duthie 2014-12-02 4700 Manoj Chauhan 2014-11-11 4802 Anna Balian 2014-07-26 5004 Abdullah Cekic 2012-03-12 5130 Raymonde Girard 2011-01-04 df2 = Member Nbr Name-First Name-Last Date-Join

问题 I have a self-define class using template, like this: template<class T> class foo { public: T a; bool operator<(const foo<T> &f); //other functions... } template<class T> bool foo<T>::operator<(const foo<T> &f) {return a - f.a;} Now, I new some foos and give them value, then I want to sort this array: foo<int>* fp = new foo<int>[3]; //give each element value sort(fp, fp+3); //run-time error When I use sort function, I got a run-time error. Did I do something wrong? Please help me. 回答1:

问题 I have an array of objects. i want to access class method inside object function property. How to implement this? please help me. I wrote smth like this: render() { tableTh = [ {name: i18n.t('ExtendedModalBar.naming'), style:{}, handleSort () {}}, ... ] ... } I am trying to write someth like this: class Table extends Component { handleSort() { } ... render() { } } My table headers are formed dynamically: <thead> <tr> <th style={{ width: "50px" }}> <Checkbox checked={this.state.selectedAll}