The present invention converts the pre-developed escaping and Wifijaba application to the Android application to operate on the Android platform without further development process. To this end, the present invention comprises the steps of: converting the class file and the resource file consisting of bytecode of the escape and Wi-Fi application Java; Wrapping the OEM API and the MIDP API in a class file composed of the converted bytecodes; Comprising the OEM API and MIDP API wrapped class file and the above converted resource file to create an Android application; consists of. According to the present invention, the application of Escape and WifiJava is newly developed in the Android development environment or converted into an Android application without any further development process, thereby increasing the reusability of previously developed applications and reducing waste of development resources. have.
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