diff --git a/examples/27.HelloWorld_Android/AndroidManifest.xml b/examples/01.HelloWorld_Android/AndroidManifest.xml similarity index 100% rename from examples/27.HelloWorld_Android/AndroidManifest.xml rename to examples/01.HelloWorld_Android/AndroidManifest.xml diff --git a/examples/27.HelloWorld_Android/android_tools.cpp b/examples/01.HelloWorld_Android/android_tools.cpp similarity index 100% rename from examples/27.HelloWorld_Android/android_tools.cpp rename to examples/01.HelloWorld_Android/android_tools.cpp diff --git a/examples/27.HelloWorld_Android/android_tools.h b/examples/01.HelloWorld_Android/android_tools.h similarity index 100% rename from examples/27.HelloWorld_Android/android_tools.h rename to examples/01.HelloWorld_Android/android_tools.h diff --git a/examples/27.HelloWorld_Android/build.xml b/examples/01.HelloWorld_Android/build.xml similarity index 100% rename from examples/27.HelloWorld_Android/build.xml rename to examples/01.HelloWorld_Android/build.xml diff --git a/examples/27.HelloWorld_Android/jni/Android.mk b/examples/01.HelloWorld_Android/jni/Android.mk similarity index 100% rename from examples/27.HelloWorld_Android/jni/Android.mk rename to examples/01.HelloWorld_Android/jni/Android.mk diff --git a/examples/27.HelloWorld_Android/jni/Application.mk b/examples/01.HelloWorld_Android/jni/Application.mk similarity index 100% rename from examples/27.HelloWorld_Android/jni/Application.mk rename to examples/01.HelloWorld_Android/jni/Application.mk diff --git a/examples/27.HelloWorld_Android/main.cpp b/examples/01.HelloWorld_Android/main.cpp similarity index 100% rename from examples/27.HelloWorld_Android/main.cpp rename to examples/01.HelloWorld_Android/main.cpp diff --git a/examples/27.HelloWorld_Android/project.properties b/examples/01.HelloWorld_Android/project.properties similarity index 100% rename from examples/27.HelloWorld_Android/project.properties rename to examples/01.HelloWorld_Android/project.properties diff --git a/examples/27.HelloWorld_Android/readme.txt b/examples/01.HelloWorld_Android/readme.txt similarity index 100% rename from examples/27.HelloWorld_Android/readme.txt rename to examples/01.HelloWorld_Android/readme.txt diff --git a/examples/27.HelloWorld_Android/res/drawable-hdpi/irr_icon.png b/examples/01.HelloWorld_Android/res/drawable-hdpi/irr_icon.png similarity index 100% rename from examples/27.HelloWorld_Android/res/drawable-hdpi/irr_icon.png rename to examples/01.HelloWorld_Android/res/drawable-hdpi/irr_icon.png diff --git a/examples/27.HelloWorld_Android/res/drawable-ldpi/irr_icon.png b/examples/01.HelloWorld_Android/res/drawable-ldpi/irr_icon.png similarity index 100% rename from examples/27.HelloWorld_Android/res/drawable-ldpi/irr_icon.png rename to examples/01.HelloWorld_Android/res/drawable-ldpi/irr_icon.png diff --git a/examples/27.HelloWorld_Android/res/drawable-mdpi/irr_icon.png b/examples/01.HelloWorld_Android/res/drawable-mdpi/irr_icon.png similarity index 100% rename from examples/27.HelloWorld_Android/res/drawable-mdpi/irr_icon.png rename to examples/01.HelloWorld_Android/res/drawable-mdpi/irr_icon.png diff --git a/examples/27.HelloWorld_Android/res/drawable-xhdpi/irr_icon.png b/examples/01.HelloWorld_Android/res/drawable-xhdpi/irr_icon.png similarity index 100% rename from examples/27.HelloWorld_Android/res/drawable-xhdpi/irr_icon.png rename to examples/01.HelloWorld_Android/res/drawable-xhdpi/irr_icon.png diff --git a/examples/28.HelloWorld_iOS/Assets.xcassets/AppIcon.appiconset/Contents.json b/examples/01.HelloWorld_iOS/Assets.xcassets/AppIcon.appiconset/Contents.json similarity index 100% rename from examples/28.HelloWorld_iOS/Assets.xcassets/AppIcon.appiconset/Contents.json rename to examples/01.HelloWorld_iOS/Assets.xcassets/AppIcon.appiconset/Contents.json diff --git a/examples/28.HelloWorld_iOS/HelloWorld_iOS.xcodeproj/project.pbxproj b/examples/01.HelloWorld_iOS/HelloWorld_iOS.xcodeproj/project.pbxproj similarity index 100% rename from examples/28.HelloWorld_iOS/HelloWorld_iOS.xcodeproj/project.pbxproj rename to examples/01.HelloWorld_iOS/HelloWorld_iOS.xcodeproj/project.pbxproj diff --git a/examples/28.HelloWorld_iOS/HelloWorld_iOS.xcodeproj/xcshareddata/xcschemes/28.HelloWorld_iOS.xcscheme b/examples/01.HelloWorld_iOS/HelloWorld_iOS.xcodeproj/xcshareddata/xcschemes/28.HelloWorld_iOS.xcscheme similarity index 100% rename from examples/28.HelloWorld_iOS/HelloWorld_iOS.xcodeproj/xcshareddata/xcschemes/28.HelloWorld_iOS.xcscheme rename to examples/01.HelloWorld_iOS/HelloWorld_iOS.xcodeproj/xcshareddata/xcschemes/28.HelloWorld_iOS.xcscheme diff --git a/examples/28.HelloWorld_iOS/main.cpp b/examples/01.HelloWorld_iOS/main.cpp similarity index 100% rename from examples/28.HelloWorld_iOS/main.cpp rename to examples/01.HelloWorld_iOS/main.cpp