Java Objective Questions Answers -Chapter 1

• 50. what is jdb

  1. java compiler
  2. java Interpreter
  3. java Disassemble
  4. java debugger

  Answer And Explanation

  Answer: Option D

  Explanation:

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• 51. Java is known as _______stage language

  1. One
  2. Two
  3. Three
  4. Four

  Answer And Explanation

  Answer: Option B

  Explanation:

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• 52. Which driver is called as thin-driver in JDBC

  1. Type-1 driver
  2. Type-2 driver
  3. Type-3 driver
  4. Type-4 driver

  Answer And Explanation

  Answer: Option D

  Explanation:

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• 53. How many transaction isolation levels are defined in java.sql.Connection interface

  1. 4
  2. 3
  3. 5
  4. 2

  Answer And Explanation

  Answer: Option C

  Explanation:

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• 54. Which method of java is invoked by JVM to reclaim the inaccessible memory location

  1. reclaim() method
  2. final() method
  3. finalize() method
  4. both b and c

  Answer And Explanation

  Answer: Option C

  Explanation:

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• 55. ____ allows java code to run in the JVM to call and be called by native applications

  1. JFI
  2. JNI
  3. NJI
  4. FJI

  Answer And Explanation

  Answer: Option B

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• 56. Interfaces helps in which type of inheritance

  1. Multiple inheritance
  2. Multilevel inheritance
  3. Hierarchical inheritance
  4. None of above

  Answer And Explanation

  Answer: Option A

  Explanation:

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