day 1 puzzle 1

src/day1/Puzzle1.scala

@@ -0,0 +1,29 @@
+package day1
+
+import scala.io.{BufferedSource, Source}
+
+object Puzzle1 {
+  def loadInput(path: String): Int = {
+    var sum: Int = 0
+    val source: BufferedSource = Source.fromFile(path)
+    for (line: String <- source.getLines()) {
+      var a: Int = -1
+      var b: Int = -1
+      for (c: Char <- line) {
+        if ('0' <= c && c <= '9') {
+          if (a == -1) {
+            a = c - '0'
+          }
+          b = c - '0'
+        }
+      }
+      sum += a*10 + b
+    }
+    source.close()
+    return sum
+  }
+  def main(args: Array[String]): Unit = {
+    val sum: Int = loadInput("res/day1/input1.txt")
+    println(s"sum = $sum")
+  }
+}