Java Objective Questions Answers -Chapter 1

• 43. Which class cannot be a subclass in java
  
  
  

  1. abstract class
  2. parent class
  3. Final class
  4. None of above

  Answer :

  Option C

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

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

  Answer :

  Option C

• 45. Which command is used for interpretation of java program

  1. Java
  2. javac
  3. javap
  4. none of above

  Answer :

  Option C

• 46. Which of the following below are valid isolation levels in J2EE

  1. TRANSACTION_READ_UNCOMMITTED
  2. TRANSACTION_SERIALIZABLE
  3. Only A
  4. Both A and B

  Answer :

  Option D

• 47. Which keyword is used while using interface

  1. extend
  2. implements
  3. throw
  4. throws

  Answer :

  Option B

• 48. Super is the predefined

  1. Keyword
  2. Method
  3. Keyword and Method
  4. None of above
  5. Analytical
  6. Anger
  7. Frustrated
  8. Optomistic

  Answer :

  Option E

• 49. Minimum threads in a program are

  1. 1
  2. 2
  3. 5
  4. Many
  5. a tax evader who uses deceptive accounting practices to hide her income from auditors
  6. an embezzler who steals from her company by pilfering small amounts of money over a long period of time
  7. a criminal who argues that it is not he but one of his accomplices who is guilty of a crime
  8. a con artist who convinces his victim that it is in the victim’s best interest to help him

  Answer :

  Option