diff --git a/examples/constructors.cpp b/examples/constructors.cpp
new file mode 100644
index 0000000..e8b62cf
--- /dev/null
+++ b/examples/constructors.cpp
@@ -0,0 +1,71 @@
+#include <iostream>
+#include <cstdlib>
+using namespace std;
+
+class DayOfYear
+{
+private:
+    int month;
+    int day;
+    void testDate();
+public:
+    DayOfYear(int monthValue, int dayValue);
+    DayOfYear(int monthValue);
+    DayOfYear();
+
+    void input();
+    void output();
+    int getMonthNumber();
+    int getDay();
+};
+
+DayOfYear::DayOfYear(int monthValue, int dayValue) 
+            : month(monthValue), day(dayValue)
+{
+    testDate();
+}
+
+DayOfYear::DayOfYear(int monthValue) 
+            : month(monthValue), day(1)
+{
+    testDate();
+}
+
+DayOfYear::DayOfYear() 
+            : month(1), day(1)
+{}
+
+void DayOfYear::testDate()
+{
+    //
+    if((month < 1) || (month > 12))
+    {
+        //
+        cout << "Invalid month.\n";
+    }
+    if((day < 1) || (day > 31))
+    {
+        //
+        cout << "Invalid day.\n";
+    }
+}
+
+void DayOfYear::output()
+{
+    string Months [] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
+    cout << "The month is " << Months[month-1] << " and the day is " << day;
+}
+
+int main()
+{
+    DayOfYear date1(2, 21), date2(5), date3;
+    cout << "Initialized dates:" << endl;
+    date1.output(); cout << endl;
+    date2.output(); cout << endl;
+    date3.output(); cout << endl;
+
+    date1 = DayOfYear(10, 31);
+    cout << "Date 1 reset to the following: " << endl;
+    date1.output(); cout << endl;
+    return 0;
+}
diff --git a/examples/test b/examples/test
new file mode 100755
index 0000000..f0fa5c1
Binary files /dev/null and b/examples/test differ
diff --git a/examples/test.cpp b/examples/test.cpp
new file mode 100644
index 0000000..022cb02
--- /dev/null
+++ b/examples/test.cpp
@@ -0,0 +1,25 @@
+#include <cstdio>
+#include <cstdlib>
+#include <iostream>
+#include <cstring>
+#include <list>
+#include <set>
+#include <unordered_map>
+#include <time.h>
+
+using namespace std;
+
+void printSize(int array[])
+{
+    //
+    cout << sizeof(*array) << "\n";
+}
+
+int main()
+{
+    //
+    int array[] = {1, 2, 3, 4, 5, 6};
+    cout << sizeof(array) << "\n";
+    printSize(array);
+    return 0;
+}
\ No newline at end of file