converted constants from enum to interface

Signed-off-by: Konstantin Läufer <[email protected]>

Author: klaeufer

src/main/java/edu/luc/etl/cs313/android/simplestopwatch/common/Constants.java

@@ -3,12 +3,8 @@
 /**
  * Constants for the time calculations used by the stopwatch.
  */
-public enum Constants {
-
-  ;
-
-  public static final int SEC_PER_TICK = 1;
-  public static final int SEC_PER_MIN = 60;
-  public static final int SEC_PER_HOUR = 3600;
-
+public interface Constants {
+  int SEC_PER_TICK = 1;
+  int SEC_PER_MIN = 60;
+  int SEC_PER_HOUR = 3600;
 }