Mobile applications are developed using suitable mobile application coding languages that translate ideas into the working codes of applications, which are then distributed through app stores or otherwise. Android mobile applications have reduced development costs and increased success rates. These applications run on a large number of devices and hence have access to large pool of customers. The paid type Android applications generate increased revenue to developers while free type applications get more downloads.Detailed knowledge about the techniques of Android application development steps are necessary before venturing into the development of mobile applications. This book is prepared for the beginners to get a start in Android application development by understanding the basics of Android application coding methods using Java, which is one of the most popular mobile coding languages used. After completing the book, it will be possible for the student to move to a higher level of expertise in Android application development. The book begins with introductory chapters on the history and development of Android, essential Java, XML and JSON fundamentals. This is followed with chapters discussing the details of Android application structure and the steps for creating Android application projects. Later chapters have detailed descriptions with illustrations on the development of Android applications varieties that deal with SQLite database, telephony, short messaging, data parsing, location service and Google maps.End chapter exercises, illustrations with Java and XML codes, picturesque descriptions with sufficient screenshots are the salient features of this book that makes it different from conventional type text books. Presented in simple and engaging style, the book will prove to be the ideal text book for any course introducing students to mobile Android applications development using Java coding language. The book will also immensely benefit all those who are interested in developing and sharpening the necessary skills for Android applications development using Java language through self study in the cool environment of their homes thereby getting hold of the important concepts of this technology so as to become well suited for the industry.