Java Objective Questions Answers -Chapter 1

• 22. What is meaning of jar

  1. java archived
  2. java array
  3. java architecture
  4. none of these

  Answer :

  Option A

• 23. Inheritance means

  1. Sub class extends super class
  2. Sub class extends Base class
  3. Sub class create object of super class
  4. All of the above
  5. 1
  6. 2
  7. 3
  8. 4

  Answer :

  Option E

• 24. There is no default transaction attribute for an EJB

  1. False
  2. True

  Answer :

  Option B

• 25. x=x+1 is equivalent to

  1. ++x
  2. x++
  3. x=x-1
  4. None of these

  Answer :

  Option B

• 26. Which of the following command is used to compile the Java program

  1. java
  2. javac
  3. javap
  4. none of these

  Answer :

  Option B

• 27. The class java.sql.Timestamp is associated with

  1. java.util.Time
  2. java.sql.Time
  3. java.util.Date
  4. None of above

  Answer :

  Option C

• 28. Which statement is static and synchronized in JDBC API

  1. executeQuery()
  2. executeUpdate()
  3. getConnection()
  4. prepareCall()

  Answer :

  Option C