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  • Question
  • What?s the difference between Enumeration and Iterator interfaces ?


  • Correct Answer
  • Enumeration is twice as fast as compared to an Iterator and uses very less memory However, the Iterator is much safer compared to Enumeration, because other threads are not able to modify the collection object that is currently traversed by the iterator Also, Iteratorsallow the caller to remove elements from the underlying collection, something which is not possible with Enumerations 


  • More questions

    • 1. What is CRR rate?
    • Discuss
    • 2. Which among the following are not access Specifiers in C++?

    • Options
    • A. Public
    • B. Protected
    • C. Default
    • D. Private
    • Discuss
    • 3. In which year, the first bank of India "Bank of Hindustan" was established ?

    • Options
    • A. 1677
    • B. 1770
    • C. 1796
    • D. 1831
    • Discuss
    • 4. What could be the bucket size if collision and overlapping occur at same time?

    • Options
    • A. 2
    • B. 0
    • C. 1
    • D. 4
    • Discuss
    • 5. Default constructor accepts how many arguments?

    • Options
    • A. one
    • B. two
    • C. three
    • D. None
    • Discuss
    • 6. What are the mandatory part to present in function pointers?

    • Options
    • A. &
    • B. retrun values
    • C. data types
    • D. none of these
    • Discuss
    • 7. Which of the following can derived class inherit?

    • Options
    • A. members
    • B. functions
    • C. both a & b
    • D. None of the above
    • Discuss
    • 8. What kind of object is modifying sequence algorithm?

    • Options
    • A. Function template
    • B. Class template
    • C. Method
    • D. None of these
    • Discuss
    • 9. Fixed Foreign Exchange rate can be changed by

    • Options
    • A. SEBI
    • B. Ministry of Finance
    • C. RBI
    • D. All of the above
    • Discuss
    • 10. The shortcut key to quit from tally is

    • Options
    • A. CTRL + Q
    • B. CTRL + ESC
    • C. CTRL + T
    • D. CTRL + P
    • Discuss


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