logo

CuriousTab

CuriousTab

Discussion


Home Interview Technology See What Others Are Saying!
  • Question
  • Why do we need wrapper classes in Java?


  • Correct Answer
  • Dealing with primitives as objects is easier at times Most of the objects collection store objects and not primitive types Many utility methods are provided by wrapper classes To get these advantages we need to use wrapper classes As they are objects, they can be stored in any of the collection and pass this collection as parameters to the methods Features of the Java wrapper Classes: - Wrapper classes convert numeric strings into numeric values - The way to store primitive data in an object - The valueOf() method is available in all wrapper classes except Character - All wrapper classes have typeValue() method This method returns the value of the object as its primitive type 


  • More questions

    • 1. How would you automatically transfer your visitors to a new web page?
    • Discuss
    • 2. The threshold limit upto which coins can be issued as per the Coinage Act 2011 ?

    • Options
    • A. 100
    • B. 200
    • C. 500
    • D. 1000
    • Discuss
    • 3. Cash Reserve Ratio ( CRR) and Stautory Liquidity Ratio (SLR ) are terms most closely related to which of the following industries/markets :

    • Options
    • A. Mutual Fund
    • B. Income Tax
    • C. Stock Exchange
    • D. Banking
    • Discuss
    • 4. What is the minimum period of time for which one can open an FD(Fixed Deposit) account ?

    • Options
    • A. 15 days
    • B. 6 months
    • C. 7 days
    • D. 1 year
    • Discuss
    • 5. Which Bank has been given scheduled bank status by RBI ?

    • Options
    • A. Disha
    • B. Suryoday
    • C. Janalakshmi
    • D. Ujjivan
    • Discuss
    • 6. Which class is used to indicate Black Navigation Bar ?

    • Options
    • A. .navbar-inverse
    • B. .navbar-black
    • C. .navbar-dark
    • D. .navbar-default
    • Discuss
    • 7. The journal entry to record a credit sale is

    • Options
    • A. Accounts Receivable
    • B. Accounts Payable
    • C. Both A & B
    • D. None of the above
    • Discuss
    • 8. What is CRR rate?
    • Discuss
    • 9. Which among the following are not access Specifiers in C++?

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

    • Options
    • A. 1677
    • B. 1770
    • C. 1796
    • D. 1831
    • Discuss


    Comments

    There are no comments.

Enter a new Comment