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CodingCompCSVUtil.java
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199 lines (144 loc) · 4.34 KB
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package codingcompetition2019;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Scanner;
public class CodingCompCSVUtil {
public List<List<String>> readCSVFileByCountry(String fileName, String countryName) throws IOException {
List<List<String>> rows = new ArrayList<List<String>>();
try {
Scanner file = new Scanner (new File (fileName));
if (file.nextLine ().split(",")[0].equals ("Entity")){
file.nextLine ();
}
while (file.hasNext()) {
String x = file.nextLine();
if (x.contains(countryName)) {
rows.add(Arrays.asList(x.split(",")));
}
}
}
catch (FileNotFoundException e){
System.out.print(e);
}
return rows;
}
public List<List<String>> readCSVFileWithHeaders(String fileName) throws IOException {
List<List<String>> rows = new ArrayList<List<String>>();
try {
Scanner file = new Scanner (new File (fileName));
while (file.hasNext()) {
rows.add(Arrays.asList(file.nextLine ().split(",")));
}
}
catch (FileNotFoundException e){
System.out.print(e);
}
return rows;
}
public List<List<String>> readCSVFileWithoutHeaders(String fileName) throws IOException {
List<List<String>> rows = new ArrayList<List<String>>();
try {
Scanner file = new Scanner (new File (fileName));
file.nextLine ();
while (file.hasNext()) {
rows.add(Arrays.asList(file.nextLine ().split(",")));
}
}
catch (FileNotFoundException e){
System.out.print(e);
}
return rows;
}
public DisasterDescription getMostImpactfulYear(List<List<String>> records) {
int max = 0;
String year = "";
String cat = "";
for (List <String> x : records) {
int number2 = Integer.valueOf(x.get(3));
if(number2 > max) {
max = number2;
year = x.get(2);
cat = x.get(0);
}
}
return new DisasterDescription (year,cat,max);
}
public DisasterDescription getMostImpactfulYearByCategory(String category, List<List<String>> records) {
int max = 0;
String year = "";
String cat = "";
for (List <String> x : records) {
if (x.contains (category)) {
int number2 = Integer.valueOf(x.get(3));
if(number2 > max) {
max = number2;
year = x.get(2);
cat = x.get(0);
}
}
}
return new DisasterDescription (year,cat,max);
}
public DisasterDescription getMostImpactfulDisasterByYear(String year, List<List<String>> records) {
int max = 0;
String ourYear = "";
String cat = "";
for (List <String> x : records) {
if (x.contains (year)&& !(x.contains("All natural disasters"))) {
int number2 = Integer.valueOf(x.get(3));
if(number2 > max) {
max = number2;
ourYear = x.get(2);
cat = x.get(0);
}
}
}
return new DisasterDescription (ourYear,cat,max);
}
public DisasterDescription getTotalReportedIncidentsByCategory(String category, List<List<String>> records) {
int total = 0;
String year = "0000";
String cat = category;
for (List <String> x : records) {
if (x.contains(category)) {
total += Integer.valueOf(x.get(3));
}
}
return new DisasterDescription (year,cat,total);
}
/**
* This method will return the count if the number of incident falls within the provided range.
* To simplify the problem, we assume:
* + A value of -1 is provided if the max range is NOT applicable.
* + A min value can be provided, without providing a max value (which then has to be -1 like indicated above).
* + If a max value is provided, then a max value is also needed.
*/
public int countImpactfulYearsWithReportedIncidentsWithinRange(List<List<String>> records, int min, int max) {
// TODO implement this method
int count = 0;
for (List <String> list : records) {
if (max == -1 && Integer.valueOf (list.get(3))>=min){
count++;
}
else if (Integer.valueOf (list.get(3))<= max && Integer.valueOf (list.get(3))>=min){
count++;
}
}
return count;
}
public boolean firstRecordsHaveMoreReportedIndicents(List<List<String>> records1, List<List<String>> records2) {
int count1 = 0;
int count2 = 0;
for (List <String> list : records1) {
count1+=Integer.valueOf (list.get(3));
}
for (List <String> list : records2) {
count2+=Integer.valueOf (list.get(3));
}
return count1>count2;
}
}