Counting an Occurrence in an Array (Java)

Question

I am completely stumped. I took a break for a few hours and I can\'t seem to figure this one out. It\'s upsetting!

I know that I need to check the current element in

Answer 1

import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
 // This program counts the number of occurrences of error message. It read the data from Excel sheet for the same.
public class fileopen {
    public static void main(String[] args) {

        String csvFile = "C:\\Users\\2263\\Documents\\My1.csv";
        BufferedReader br = null;
        String line = "";
        String cvsSplitBy = ",";
        List list = new ArrayList();

        String[] country = null;
        Map hm = new HashMap();
        try {

            br = new BufferedReader(new FileReader(csvFile));
            while ((line = br.readLine()) != null) {

                // use comma as separator
                country = line.split(cvsSplitBy);

                list.add(country[2]);

                System.out.println(country[1]);
            }
            for (String i : list) {
                Integer j = hm.get(i);
                hm.put(i, (j == null) ? 1 : j + 1);
            }
            // displaying the occurrence of elements in the arraylist
            for (Map.Entry val : hm.entrySet()) {
                if(val.getKey().equals("Error Message")){
                    System.out.println(val.getKey());
                    continue;
                }
                System.out.println(val.getKey() + " " + val.getValue());
            }
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            if (br != null) {
                try {
                    br.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
    }
}