JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD B.Tech IV MOBILE APPLICATION DEVELOPMENT Previous Question Paper (May/June - 2019 - R15)
Note: This question paper contains two parts A and B. Part A is compulsory which carries 25 marks. Answer all questions in Part A. Part B consists of 5 Units. Answer any one full question from each unit. Each question carries 10 marks and may have a, b, c as sub questions.
PART A
(25 Marks)
What are the features of J2ME?
Answer
J2ME features include a highly optimized virtual machine (KVM), a modular architecture based on configurations and profiles, support for small memory footprints, and a standardized set of APIs for resource-constrained devices.
Explain J2ME configurations.
Answer
Configurations define the minimum set of Java virtual machine features and class libraries available for a specific category of devices. The two primary configurations are the Connected Limited Device Configuration (CLDC) for devices with very limited memory and power, and the Connected Device Configuration (CDC) for more powerful devices with persistent network connections.
What are the objectives of MIDlet programming?
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What are the requirements for small computing device?
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What is screen class?
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What are the steps required to create an instance of an Image Item class?
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What is a JDBC driver?
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Explain Embedded SQL.
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What is a socket?
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Explain the need of cookies.
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PART B
(50 Marks)
Explain the evolution of J2ME.
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Briefly discuss the concept of wireless technology and microwave technology.
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Explain radio data networks.
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Explain about the personal digital assistants.
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In detail explain J2ME Architecture with a neat diagram.
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Explain some of the J2ME best practices.
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Explain the anatomy of a MIDlet suite.
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Write a MIDlet for selecting an option from a Choice Group object.
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Give a brief note on Animations.
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Write a MIDlet program for drawing a rectangle on canvas.
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Write a MIDlet for writing and reading records from a record store.
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Explain sorting mixed data type records in a record enumeration.
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Explain the concept of JDBC ? Explain the JDBC driver types.
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Write a J2ME program to illustrate grouping and ordering of data.
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Explain session management with an example.
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Write a J2ME program to writing to a file.
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Explain the different types of HTTP Request methods.
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Explain the steps required to write to and read from a socket connection.
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