Initial data commit

Task/Long-year/Java/long-year.java

@@ -0,0 +1,19 @@
+import java.time.LocalDate;
+import java.time.temporal.WeekFields;
+
+public class LongYear {
+
+    public static void main(String[] args) {
+        System.out.printf("Long years this century:%n");
+        for (int year = 2000 ; year < 2100 ; year++ ) {
+            if ( longYear(year) ) {
+                System.out.print(year + "  ");
+            }
+        }
+    }
+
+    private static boolean longYear(int year) {
+        return LocalDate.of(year, 12, 28).get(WeekFields.ISO.weekOfYear()) == 53;
+    }
+
+}