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

  • 4
  • 3
  • 5
  • 2

Answer: Option C

Similar Questions :

1. Which class cannot be subclassed (or extended) in java?

  • abstract class
  • parent class
  • Final class
  • None of above

Answer: Option C

2. x=x+1 is equivalent to

  • ++x
  • x++
  • x=x-1
  • None of these

Answer: Option B

3. Which method executes only once

  • start() method
  • init() method
  • stop() method
  • destroy() method

Answer: Option B

4. The Externizable interface extends the serializable interface

  • True
  • False

Answer: Option A

5. Thread class is available in

  • java.io package
  • java.lang package
  • java.awt package
  • java.util package

Answer: Option B

Read more from - Java Objective Questions Answers -Chapter 1
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