Question: Hello i have java programming assignment could you help me? We should use hashmap You have collected a file of movie ratings where each movie

Hello i have java programming assignment could you help me? We should use hashmap

You have collected a file of movie ratings where each movie is rated from 1 (bad) to 5 (excellent). Each rating then consists of two lines: the name of the movie followed by the numeric rating from 1 to 5. Here is a sample rating file with four unique movies and seven ratings: Harry Potter and the Half-Blood Prince Harry Potter and the Half-Blood Prince Army of the Dead Harry Potter and the Hal-Blood Prince Army of the Dead The Uninvited Pandorium Write a program that reads a file in this format, calculates the average rating for each movie, and outputs the average along with the number of reviews and review counts. Here is the desired output for the sample data: Harry Potter the Half-Blood Prince: 3 total reviews, average of 4.3/5 Rate 4: 2 review Rate 5 Army of the Dead: 2 total reviews, average of 1.5/5 Rate l Rate 2 The Uninvited: I total review, average of 475 Rate 4 Pandorium: I total review, average of 3/5 Rate 3 I review I review I review review I review Use a HashMap or multiple HashMaps to calculate the output. Your map(s) should index from a string representing each movie's name to integers that store the total number of reviews and each number of reviews of movie For example, Total Reviews: 3, Rate eview, Rate 2: 2 reviews, Rate 3: 1 review, Rate 4: 1 review, Rate 5: 1 reviews

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Databases Questions!

Java programming language use You have collected a file of movie ratings where each movie is rated from 1 (bad) to 5 (excellent). The first line of the file is a number that identifies how many...

Please Help (Java Programming Only) :- There are two main parts to this assignment. 1) Write the Movie class. 2) Write two classes to handle the user interface. Part 1 - Class Specifications Class...

Please Help(Need help as soon as possible) (Java Programming Only) :- There are two main parts to this assignment. 1) Write the Movie class. 2) Write two classes to handle the user interface. Part 1...

I need help in completeing this assignment. This needs to be implemented in Java. Programming Assignment: Autocomplete Me Write a program to implement autocomplete for a given set of N strings and...

You may use an IDE (BlueJ, Netbeans, etc) or just an editor and command line operations (javac, java) in Unix or Windows/DOS to develop your program. Use good design (dont put everything in one...

programming in java This assignment will provide you with practice using arrays. Your job is to build a simple Recommender System, similar to the one that Netflix (an online movie-rental service)...

Background and Introduction: Word counting is used in many applications, including text analysis, text indexing, text compression, and cryptography. In this programming assignment, you will read a...

package adminSite; package adminSite; import java.util.Comparator; import java.util.HashMap; import java.util.List; import java.util.Map; import java.util.Random; import java.util.function.Function;...

You have collected a file of movie ratings where each movie is rated from 1 (bad) to 5 (excellent). The first line of the file is a number that identifies how many ratings are in the file. Each...

Could someone please help me with this C++ project, the instructions are below: Consider a class Movie that contains information about a movie. The class has the following attributes: The movie name...

Acquiring Company is considering buying Target Company. Target Company is a small biotechnology firm that develops products licensed to the major pharmaceutical firms. Development costs are expected...

Ferry Boat Corporation has the following financial information: Net fixed assets: Book value: $2,500, Market value: $3,000 Net working capital: $700 Current accounts liquidated: $1,500 ABC...

1. Since 1955 Americans have been spending . ( LO5 ) a) a larger percentage of their incomes on services b) a smaller percentage of their incomes on services c) about the same percentage of their...

3. A firm has fixed costs of $2,000. Its short-run production function is y = 4x - 1/2 : where x is the amount of variable factor it uses. The price of the variable factor is $3,000 per unit. Where y...

=+ 4. Why should policymakers think about incentives?

=+ 2. What is the opportunity cost of seeing a movie?

=+ what roles should government play in them ?