add tasks starting with a number

Task/100-doors/Java/100-doors-2.java

@@ -0,0 +1,13 @@
+public class Doors
+{
+ public static void main(final String[] args)
+ {
+  boolean[] doors = new boolean[100];
+
+  for (int pass = 0; pass < 10; pass++)
+   doors[(pass + 1) * (pass + 1) - 1] = true;
+
+  for(int i = 0; i < 100; i++)
+   System.out.println("Door #" + (i + 1) + " is " + (doors[i] ? "open." : "closed."));
+ }
+}