General continuation of development

1 files changed, 8 insertions, 0 deletions

diff --git a/app/src/main/java/com/camilstaps/common/Date.java b/app/src/main/java/com/camilstaps/common/Date.java
index c01cc0d..8e5d6f4 100644
--- a/app/src/main/java/com/camilstaps/common/Date.java
+++ b/app/src/main/java/com/camilstaps/common/Date.java
@@ -110,6 +110,14 @@ public class Date implements Comparable<Date> {
         }
     }
 
+    public void addOrSubtractDays(int n) {
+        if (n < 0) {
+            subtractDays(-n);
+        } else {
+            addDays(n);
+        }
+    }
+
     public boolean equals(Date date) {
         return year == date.year && month == date.month && day == date.day;
     }