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IT FINALLY WORKS #19

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IT FINALLY WORKS #19

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27 changes: 18 additions & 9 deletions src/Tallyer.java
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Original file line number Diff line number Diff line change
@@ -1,7 +1,4 @@
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.Scanner;
import java.util.*;

/**
* The Tallyer class provides functionality for reading ID and topic pairs from user input,
Expand All @@ -17,6 +14,7 @@ public class Tallyer {
* @param args command-line arguments (not used in this implementation)
*/
public static void main(String[] args) {

Scanner input = new Scanner(System.in);

List<String> ids = new ArrayList<>();
Expand All @@ -32,13 +30,14 @@ public static void main(String[] args) {

// Wave 1
Map<String, Integer> topicCounts = tallyTopics(topics);

System.out.println("Here are how many times each topic appears (unfiltered):");
System.out.println(topicCounts);

// Wave 2
Map<String, Integer> topicCountsFiltered = tallyTopicsFiltered(ids, topics);
System.out.println("Here are how many times each topic appears (filtered):");
System.out.println(topicCountsFiltered);
//Map<String, Integer> topicCountsFiltered = tallyTopicsFiltered(ids, topics);
// System.out.println("Here are how many times each topic appears (filtered):");
// System.out.println(topicCountsFiltered);
}

/**
Expand All @@ -53,13 +52,23 @@ public static void main(String[] args) {
public static Map<String, Integer> tallyTopics(List<String> topics) {
// WAVE 1
// TODO: Remove the print statements and implement this method
Map<String, Integer> topicCounts = new HashMap<>();

for (String topic : topics) {
System.out.println("The topic is: " + topic);
if(topicCounts.containsKey(topic)) {
// we are overriding the existing topic and adding one to the value
topicCounts.put(topic, topicCounts.get(topic) + 1);
} else{
// If it doesn't exist than put it in the map
topicCounts.put(topic, 1);
}
}

return null;
return topicCounts;
}



/**
* Tally the occurrences of each topic from the provided lists of IDs and topics.
* This method takes two lists, one of IDs and one of topics, and returns a map
Expand Down