Java ME (Java Platform, Micro Edition) MCQ Questions Answers

1. According to JTWI, what is the recommended size for a heap?

2. Which one is designed for resource-constrained devices like consumer products and embedded devices?

3. SMS Push is not required for JTWI.

4. Which statement regarding configuration in Java ME is incorrect?

5. Which one is used to specify the Push enable MIDlets?

6. According to JTWI, what is the recommended screen size?

7. Which device is served by CDC?

8. Which features would the target devices for CLDC have?

9. The version of CLDC in a JAD file can be known by the:

10. Which one is not the characteristic feature of the target devices of CDC?

11. Which are not Java ME Configurations?

12. Which image format is supported by JTWI 1.0?

13. According to JTWI, what is the standard size for a JAD file?

14. Migration of code from J2SE to CDC would be a straight forward process.

15. Which migration of code is possible?

16. Which methods are defined as a part of CLDC Internationalization? 1.new InputStreamReader(InputStream) 2.new InputStreamReader( InputStream,String) 3.new OutputStreamWriter(OutputStream) 4.new OutputStreamWriter(OutputStream, String)

17. Which one is true for Technology Compatibility Kit(TCK)?

18. Which methods would be suitable in opening a connection using the Generic Connection framework?

19. Which are Java ME profiles?

20. Which one fall under the scope of CLDC?

21. Identify the incorrect statement regarding CLDC:

22. Which one is designed for single-processor desktop environments that require faster start-up time and a smaller memory footprint?

23. Which one is not required for JTWI?

24. MIDP specification requires support for which of the following auth schemes?

25. Which are a part of the CLDC expert group?

26. Which statement is incorrect regarding the Generic Connection framework?

27. Which features are absent in CLDC as compared to JVM?

28. Which statement with respect to Java ME profiles is incorrect?

29. An attribute is defined in both JAD and MIDlet JAR files. Which one will take precedence over the other?

30. Which are the optional packages available with CDC?

31. Which one is in sync with the sandbox model?

32. Which profiles give full AWT and applet support?

33. Which statement is correct regarding RecordStores?

34. Which one is designed for multi-processor enterprise server environments that require maximum program execution speed, 64-bit support and very large memory heaps?

35. The MIDlet permission is defined in a JAD file using __________.

36. Which one is not a characteristic features of the target devices of CDLC?

37. The character limit for an SMS Text message is:

38. Which device is served by CLDC?

39. The RecordStore can be shared among multiple MIDlets.

40. Which functions fall under the scope of J2ME profiles?

41. According to JTWI, what is the standard size for a MIDlet jar file?

42. What will happen on attempting to compile and run the following code?

43. Which one is not addressed by MIDP?

44. Which device is served by CDC?

45. Which packages constitute the Java ME?

46. Which one in CLDC is not derived from J2SE?

47. Which are a part of the CLDC expert group?

48. For a device to be JTWI MMAPI enabled, it must support:

49. The callback method that is invoked for a specific item event is _____________.

50. Which one is a CDC based profiles?

51. Which capabilities are provided to device manufacturers by embedded Java technology?

52. In J2ME, the approximate number of classes taken from J2SE java.io is:

53. Which authmodes can be used to share a RecordStore between multiple MIDlets?

54. The constant to create a modal alert is:

55. Which are not supported by the CLDC 1.1 VM?

56. A MIDlet can retrieve its environment properties.

57. The following are the two statements related to Java Community Process: Statement X: A Java specification begins life as a Java Community Process Statement Y: The specifications for Java standard, enterprise and micro platforms are developed under the direction of JCP Which of the following options is correct?

58. In J2ME, the approximate number of classes taken from J2SE java.util is:

59. Which statements are correct regarding CLDC security?

60. Which statements are correct regarding Xlet application programming model?

61. Which profile is supported by CLDC?

62. What would you infer from the following code? 1.MessageConnection conn; 2. 3. public void startApp() 4. { 5. 6. try 7. { 8. conn = (MessageConnection)Connector.open('cbs://:3382'); 9. } 10. catch(Exception e) 11. { 12. //Some exception handling 13. } 14. } 15. 16. public void run() 17. { 18. Message msg = conn.receive(); 19. conn.send(msg); 20. }

63. Which one could be the reasons for the introduction of the Generic Connection framework?

64. Which one is designed for very small memory scenarios, typically 128 KB to 512 KB for the Java application environment?

65. What would be the values for boxes 1 and 2 respectively in the given Generic Framework figure?

66. Mids server should only download data which has a MIME type of:

67. The default mode for an open connection is:

68. Which of the following form a part of CLDC?

69. The CLDC specific classes are defined in a package called:

70. The CLDC properties are defined in:

71. The minimum number of threads supported by JTWI complaint implementations are:

72. Which are the part of the CLDC expert group?

73. Which are the part of the CLDC expert group?