POM, MovieRecommender#28
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The file must be in the source project
So it can runs with JDK 8
motenrique
suggested changes
Apr 27, 2021
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| public class MovieRecommender { | ||
| String path; | ||
| int repMovies,repUsers; |
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Declaration should go on single line
| public class MovieRecommender { | ||
| String path; | ||
| int repMovies,repUsers; | ||
| int user,product,review; |
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Same here, declaration should go on single lines
| String path; | ||
| int repMovies,repUsers; | ||
| int user,product,review; | ||
| HashMap<String, Integer> userId = new HashMap<String, Integer>(); |
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Avoid using implementations, use an interface instead
| } | ||
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| public void convert() throws IOException { | ||
| this.user=0; |
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Initialization should be part of constructor. Also, default values of int attributes is zero
| this.review=0; | ||
| this.repMovies=0; | ||
| this.repUsers=0; | ||
| String idUser="",idProduct="", scoreReview=""; |
| this.review++; | ||
| } | ||
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| if(idProduct != "" && idUser != "" && scoreReview != "") { |
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Use equals method to compare Objects
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| if(idProduct != "" && idUser != "" && scoreReview != "") { | ||
| csvWriter.append(userId.get(idUser).toString()); | ||
| csvWriter.append(","); |
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Avoid using string literals, you can use a static String or an enum
| public int getTotalUsers(){ return this.user; } | ||
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| public List <String> getRecommendationsForUser(String id) throws IOException, TasteException { | ||
| DataModel model = new FileDataModel(new File("list.csv")); |
| import java.util.regex.Pattern; | ||
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| public class MovieRecommender { | ||
| String path; |
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Define right access modifier for class attributes
| public int getTotalProducts(){ return this.product; } | ||
| public int getTotalUsers(){ return this.user; } | ||
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| public List <String> getRecommendationsForUser(String id) throws IOException, TasteException { |
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Where is this function being called?
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