+ day 6

Author: MCqwertz

Day-06/java/MCqwertz/Day06.java

@@ -0,0 +1,59 @@
+//created by MCqwertz
+
+package MCqwertz;
+
+import java.io.FileNotFoundException;
+import java.util.*;
+
+public class Day06 {
+public static void main(String[] args) throws FileNotFoundException {
+System.out.println("Part 1: " + getFirstResult());
+System.out.println("Part 1: " + getSecondResult());
+}
+
+private static int getFirstResult() throws FileNotFoundException {
+TreeSet<Character> questions = new TreeSet<>();
+Scanner scanner = TextFileUtils.getScanner(6);
+int sum = 0;
+while(scanner.hasNextLine()) {
+char[] chars = scanner.nextLine().toCharArray();
+if(chars.length == 0) {
+sum += questions.size();
+questions.clear();
+} else {
+for (char c : chars) {
+questions.add(c);
+}
+}
+}
+sum += questions.size();
+return sum;
+}
+
+private static int getSecondResult() throws FileNotFoundException {
+ArrayList<Character> questions = new ArrayList<>();
+Scanner scanner = TextFileUtils.getScanner(6);
+boolean firstLine = true;
+int sum = 0;
+while (scanner.hasNextLine()) {
+String nextLine = scanner.nextLine();
+if(nextLine.equals("")) {
+sum += questions.size();
+questions.clear();
+firstLine = true;
+} else {
+if(firstLine) {
+for (char c : nextLine.toCharArray()) {
+questions.add(c);
+}
+firstLine = false;
+} else {
+questions.removeIf(c -> !nextLine.contains(String.valueOf(c)));
+}
+}
+
+}
+sum += questions.size();
+return sum;
+}
+}