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Commit d734a4d

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1 parent 4315ee6 commit d734a4d

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‎Week 3/Assignment 2/AllFilters.class

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‎Week 3/Assignment 2/AllFilters.ctxt

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#BlueJ class context
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comment0.target=AllFilters
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comment1.params=
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comment1.target=AllFilters()
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comment2.params=f
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comment2.target=void\ addFilter(Filter)
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comment3.params=id
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comment3.target=boolean\ satisfies(java.lang.String)
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numComments=4

‎Week 3/Assignment 2/AllFilters.java

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import java.util.ArrayList;
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public class AllFilters implements Filter {
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ArrayList<Filter> filters;
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public AllFilters() {
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filters = new ArrayList<Filter>();
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}
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public void addFilter(Filter f) {
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filters.add(f);
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}
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@Override
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public boolean satisfies(String id) {
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for(Filter f : filters) {
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if (! f.satisfies(id)) {
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return false;
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}
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}
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return true;
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}
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}
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#BlueJ class context
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comment0.target=DirectorsFilter
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comment1.params=directors
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comment1.target=DirectorsFilter(java.lang.String)
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comment2.params=id
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comment2.target=boolean\ satisfies(java.lang.String)
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numComments=3
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/**
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* DirectorsFilter can be used to extract movies directed by either of the specified directors
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* in the method parameter.
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*
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* @ Konstantin Krumin
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* @ Version: 1.0 (February 20, 2020)
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*/
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import java.util.*;
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public class DirectorsFilter implements Filter {
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String directorsList;
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public DirectorsFilter (String directors) {
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directorsList = directors;
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}
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@Override
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public boolean satisfies(String id) {
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String[] directorsSplit = directorsList.split(",");
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for (int i=0; i < directorsSplit.length; i++) {
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if (MovieDatabase.getDirector(id).indexOf(directorsSplit[i]) != -1) {
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return true;
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}
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}
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return false;
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}
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}
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‎Week 3/Assignment 2/EfficientRater.ctxt

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#BlueJ class context
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comment0.target=EfficientRater
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comment1.params=id
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comment1.target=EfficientRater(java.lang.String)
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comment2.params=item\ rating
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comment2.target=void\ addRating(java.lang.String,\ double)
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comment3.params=item
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comment3.target=boolean\ hasRating(java.lang.String)
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comment4.params=
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comment4.target=java.lang.String\ getID()
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comment5.params=item
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comment5.target=double\ getRating(java.lang.String)
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comment6.params=
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comment6.target=int\ numRatings()
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comment7.params=
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comment7.target=java.util.ArrayList\ getItemsRated()
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numComments=8

‎Week 3/Assignment 2/EfficientRater.java

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/**
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* EfficientRater class contains various methods that are used to add and extract ratings
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* from the ratings HashMap.
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*
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* @ Konstantin Krumin
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* @ Version: 1.0
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*/
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import java.util.*;
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public class EfficientRater implements Rater {
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private String myID;
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private HashMap<String,Rating> myRatings;
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public EfficientRater(String id) {
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myID = id;
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myRatings = new HashMap<String,Rating> ();
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}
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public void addRating(String item, double rating) {
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myRatings.put(item, new Rating(item,rating));
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}
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public boolean hasRating(String item) {
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if (myRatings.containsKey(item)) {
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return true;
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}
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return false;
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}
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public String getID() {
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return myID;
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}
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public double getRating(String item) {
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for (String movieID : myRatings.keySet()) {
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if (movieID.equals(item)) {
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return myRatings.get(movieID).getValue();
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}
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}
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return -1;
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}
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public int numRatings() {
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return myRatings.size();
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}
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public ArrayList<String> getItemsRated() {
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ArrayList<String> list = new ArrayList<String> ();
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for (String movieID : myRatings.keySet()) {
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list.add(myRatings.get(movieID).getItem());
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}
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return list;
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}
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}

‎Week 3/Assignment 2/Filter.class

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