loops

[Solved] Java not continuing a loop [closed]

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public static void main(String[] args) { Scanner numPlayers = new Scanner(System.in); ArrayList<Player> playerList = new ArrayList<>(); int input = numPlayers.nextInt(); for (int i = 0; i < input; i++){ System.out.println(“what is player ” + (i + 1) + ” name?”); String playerName = numPlayers.next(); playerList.add(new Player(playerName)); } } You should have declared scanner object outside … Read more

[Solved] Loop in R to get specific columns and the sum of the rest from different .csv files

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First put all files in a single folder. filenames <- list.files(pattern = “.csv”) all <- lapply(filenames, function(name) { readr:: read_csv(name) }) Based on your description the list should have a length of 300, each item containing a dataframe. If you want to bind the rows of all dataframes you can use dplyr’s bind_rows(). Below is … Read more

[Solved] Keep track of string matches to create a new ID

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I would probably consider doing this another way… Have an empty hashmap<String sub, int multiplier> Read in the name Generate the subname Fetch from or create subname in hashmap If new, set multiplier to 1 If exists, increment multiplier Return String.format(“%s%3d”, subname, multiplier x 5).toUpperCase() I would give you code but writing the above was … Read more

[Solved] Output the array so that 10 elements per line are printed

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You have not called print method from main method. One more mistake is in your code that, you mentioned about 3 times of index variable and in your code you are taking cube of index variable. public class progprblm5{ public static void main(String []args){ double alpha[] = new double[50]; for(int i =0;i<25;i++){ alpha[i]= i*i; } … Read more

[Solved] Trying to sentinel loop this program [closed]

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while (true) { System.out.println(“What type of Employee? Enter ‘o’ for Office ” + “Clerical, ‘f’ for Factory, or ‘s’ for Saleperson. Enter ‘x’ to exit.” ); String response= inp.nextLine().toLowerCase(); // validate input, do you switch statement, return; on x } 1 solved Trying to sentinel loop this program [closed]

[Solved] how to map many arrays values that have same construct to an object?

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my solution. I like just using the ES6(es2015+) way. const test_array = [ { “name”: “AnyManagedFundsRow”, “columnMeta”: { “a0”: “STRING”, “a1”: “STRING”, “a2”: “STRING”, “a3”: “DATE”, “a4”: “DATE”, “a5”: “DOUBLE”, “a6”: “INT” }, “rows”: [ [ “华夏基金管理有限公司”, “华夏大中华企业精选灵活配置混合(QDII)”, “其他型基金”, “2016-01-20”, “”, 21.877086009428236, 65135 ], [ “华夏基金管理有限公司”, “华夏大盘精选混合”, “混合型基金”, “2015-09-01”, “2017-05-02”, 10.307680340705128, 2944 ] ] } … Read more