restructured + input for 2

src/Problem2.java

@@ -0,0 +1,56 @@
+package src;
+
+import java.io.BufferedReader;
+import java.io.FileReader;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+
+public class Problem2 {
+
+    public static void main(String[] args) {
+        String filePath = "inputs/inputProblem2.txt";
+
+        try {
+            String input = readFileAsString(filePath);
+            List<Long> numbers = parseRanges(input);
+
+            for (Long num : numbers) {
+                System.out.println(num);
+            }
+
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+
+    public static String readFileAsString(String filePath) throws IOException {
+        StringBuilder sb = new StringBuilder();
+        try (BufferedReader reader = new BufferedReader(new FileReader(filePath))) {
+            String line;
+            while ((line = reader.readLine()) != null) {
+                sb.append(line.trim()); // remove extra spaces/newlines
+            }
+        }
+        return sb.toString();
+    }
+
+    public static List<Long> parseRanges(String input) {
+        List<Long> result = new ArrayList<>();
+        String[] ranges = input.split(",");
+
+        for (String range : ranges) {
+            String[] parts = range.split("-");
+            if (parts.length != 2) {
+                throw new IllegalArgumentException("Invalid range: " + range);
+            }
+            long start = Long.parseLong(parts[0]);
+            long end = Long.parseLong(parts[1]);
+            result.add(start);
+            result.add(end);
+        }
+
+        return result;
+    }
+    
+}