ICU-20354 Change 'weekend data' to 'week data'
diff --git a/icu4j/main/classes/core/src/com/ibm/icu/util/Calendar.java b/icu4j/main/classes/core/src/com/ibm/icu/util/Calendar.java
index 2c36905..0a4469b 100644
--- a/icu4j/main/classes/core/src/com/ibm/icu/util/Calendar.java
+++ b/icu4j/main/classes/core/src/com/ibm/icu/util/Calendar.java
@@ -4666,7 +4666,7 @@
     }
 
     /**
-     * Simple, immutable struct-like class for access to the CLDR weekend data.
+     * Simple, immutable struct-like class for access to the CLDR week data.
      *
      * @stable ICU 54
      */
@@ -4783,7 +4783,7 @@
     }
 
     /**
-     * {@icu} Return simple, immutable struct-like class for access to the CLDR weekend data.
+     * {@icu} Return simple, immutable struct-like class for access to the CLDR week data.
      * @param region The input region. The results are undefined if the region code is not valid.
      * @return the WeekData for the input region. It is never null.
      *
@@ -4794,7 +4794,7 @@
     }
 
     /**
-     * {@icu} Return simple, immutable struct-like class for access to the weekend data in this calendar.
+     * {@icu} Return simple, immutable struct-like class for access to the week data in this calendar.
      * @return the WeekData for this calendar.
      *
      * @stable ICU 54
@@ -4865,7 +4865,7 @@
     private static final WeekDataCache WEEK_DATA_CACHE = new WeekDataCache();
 
     /*
-     * Set this calendar to contain week and weekend data for the given region.
+     * Set this calendar to contain week and week data for the given region.
      */
     private void setWeekData(String region) {
         if (region == null) {