Design a data structure that supports the following two operations:< void addNum(int mum) - Add a integer number from the data stream to the data structure. double findMedian) - Return the median of all elements so far. class MedianFinder {-
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- Define data encapsulation, and why you would want to use it.use padding technique to reorder the data structure to reduce the required size to store a single object of it, hence speed up the processing. reorder the definition of the following C++ struct using padding struct Testing { char c; int address; float phone1; char N; double phone2; char *x; int *aptr; char q; };Define data encapsulation and why it is used.
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- In Python Write a program that reads movie data from a CSV (comma separated values) file and output the data in a formatted table. The program first reads the name of the CSV file from the user. The program then reads the CSV file and outputs the contents according to the following requirements: Each row contains the title, rating, and all showtimes of a unique movie. A space is placed before and after each vertical separator ('|') in each row. Column 1 displays the movie titles and is left justified with a minimum of 44 characters. If the movie title has more than 44 characters, output the first 44 characters only. Column 2 displays the movie ratings and is right justified with a minimum of 5 characters. Column 3 displays all the showtimes of the same movie, separated by a space. Each row of the CSV file contains the showtime, title, and rating of a movie. Assume data of the same movie are grouped in consecutive rows. Ex: If the input of the program is: movies.csv and the contents…*Java code* Implement a data structure called RunningTotal supporting the following API: a) RunningTotal() - creates an empty running-total data structure b) void add(int value) - adds the given value to the data structure c) void remove() - removes the least-recently added value d) int sum() - returns the sum of values in the data structure e) double average() - returns the average of values in the data structure Here's a Example: RunningTotal rt = new RunningTotal ();rt . add (1); // 1 ( adds 1 )rt . add (2); // 1 2 ( adds 2 )rt . add (3); // 1 2 3 ( adds 3 )rt . sum (); // 1 2 3 ( returns 6 )rt . add (4); // 1 2 3 4 ( adds 4 )rt . remove (); // 2 3 4 ( removes 1 )rt . sum (); // 2 3 4 ( returns 9 )rt . average (); // 2 3 4 ( returns 3.0 )How is a map different from other Java data structures? A Each data element connects to the next element in the map. B It's a data structure that stores data pairs: keys and their associated values. C Each data element can connect to multiple related elements in a map. D It's a data structure that keeps its data sorted.
- Define data encapsulation and the reasons for its usage.Write a program that reads movie data from a csv (comma separated values) file and output the data in a formatted table. The program first reads the name of the CSV file from the user. The program then reads the csv file and outputs the contents according to the following requirements: Each row contains the title, rating, and all showtimes of a unique movie. A space is placed before and after each vertical separator (|) in each row. Column 1 displays the movie titles and is left justified with a minimum of 44 characters. If the movie title has more than 44 characters, output the first 44 characters only. Column 2 displays the movie ratings and is right justified with a minimum of 5 characters. Column 3 displays all the showtimes of the same movie, separated by a space. Each row of the csv file contains the showtime, title, and rating of a movie. Assume data of the same movie are grouped in consecutive rows. Ex: If the input of the program is: movies.csv and the contents of movies.csv…Write a program that reads movie data from a CSV (comma separated values) file and output the data in a formatted table. The program first reads the name of the CSV file from the user. The program then reads the CSV file and outputs the contents according to the following requirements: Each row contains the title, rating, and all showtimes of a unique movie. A space is placed before and after each vertical separator ('|') in each row. Column 1 displays the movie titles and is left justified with a minimum of 44 characters. If the movie title has more than 44 characters, output the first 44 characters only. Column 2 displays the movie ratings and is right justified with a minimum of 5 characters. Column 3 displays all the showtimes of the same movie, separated by a space. Each row of the CSV file contains the showtime, title, and rating of a movie. Assume data of the same movie are grouped in consecutive rows. Hints: Use the find() function to find the index of a comma in each row of…