3 files changed, 6 insertions, 6 deletions
diff --git a/examples/qml/referenceexamples/binding/birthdayparty.h b/examples/qml/referenceexamples/binding/birthdayparty.h
index 93dad927d7..15e1908ece 100644
--- a/examples/qml/referenceexamples/binding/birthdayparty.h
+++ b/examples/qml/referenceexamples/binding/birthdayparty.h
@@ -83,7 +83,7 @@ class BirthdayParty : public QObject
     Q_PROPERTY(QString announcement READ announcement WRITE setAnnouncement)
     Q_CLASSINFO("DefaultProperty", "guests")
 public:
-    BirthdayParty(QObject *parent = 0);
+    BirthdayParty(QObject *parent = nullptr);
 
     Person *host() const;
     void setHost(Person *);
diff --git a/examples/qml/referenceexamples/binding/happybirthdaysong.h b/examples/qml/referenceexamples/binding/happybirthdaysong.h
index ab264b80c7..6960c7a330 100644
--- a/examples/qml/referenceexamples/binding/happybirthdaysong.h
+++ b/examples/qml/referenceexamples/binding/happybirthdaysong.h
@@ -61,7 +61,7 @@ class HappyBirthdaySong : public QObject, public QQmlPropertyValueSource
     Q_PROPERTY(QString name READ name WRITE setName NOTIFY nameChanged)
     Q_INTERFACES(QQmlPropertyValueSource)
 public:
-    HappyBirthdaySong(QObject *parent = 0);
+    HappyBirthdaySong(QObject *parent = nullptr);
 
     virtual void setTarget(const QQmlProperty &);
 
diff --git a/examples/qml/referenceexamples/binding/person.h b/examples/qml/referenceexamples/binding/person.h
index 2cff97a6cd..543b24f971 100644
--- a/examples/qml/referenceexamples/binding/person.h
+++ b/examples/qml/referenceexamples/binding/person.h
@@ -61,7 +61,7 @@ class ShoeDescription : public QObject
     Q_PROPERTY(QString brand READ brand WRITE setBrand NOTIFY shoeChanged)
     Q_PROPERTY(qreal price READ price WRITE setPrice NOTIFY shoeChanged)
 public:
-    ShoeDescription(QObject *parent = 0);
+    ShoeDescription(QObject *parent = nullptr);
 
     int size() const;
     void setSize(int);
@@ -92,7 +92,7 @@ class Person : public QObject
     Q_PROPERTY(ShoeDescription *shoe READ shoe CONSTANT)
 // ![0]
 public:
-    Person(QObject *parent = 0);
+    Person(QObject *parent = nullptr);
 
     QString name() const;
     void setName(const QString &);
@@ -110,14 +110,14 @@ class Boy : public Person
 {
     Q_OBJECT
 public:
-    Boy(QObject * parent = 0);
+    Boy(QObject * parent = nullptr);
 };
 
 class Girl : public Person
 {
     Q_OBJECT
 public:
-    Girl(QObject * parent = 0);
+    Girl(QObject * parent = nullptr);
 };
 
 #endif // PERSON_H