Interview Questions

Q:

What is the difference between start_form and open_form in scripts? Why is it necessary to close a form always once it is opened?

Answer

strat_form using this we can open many layoutses
open_form using this we can open the layout
performance will be high

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Subject: ABAP

0 1712
Q:

How to check that the file object is pointing a file on HD?

Answer

boolean isFile();

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Subject: Java

0 1711
Q:

If super class ref is pointing sub class object then by using super class ref is it possible to call sub class newly defined method?

Answer

yes if the method is ovreriding method


no if the method is not overriding method

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Subject: Java

134 1711
Q:

What is a ResultSet ?

Answer

A table of data representing a database result set, which is usually generated by executing a statement that queries the database.


 


ResultSet object maintains a cursor pointing to its current row of data. Initially the cursor is positioned before the first row. The next method moves the cursor to the next row, and because it returns false when there are no more rows in the ResultSet object, it can be used in a while loop to iterate through the result set.

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Subject: Java

0 1709
Q:

Standard deviation measures which type of risk?

A) Non diversifiable B) Economic
C) Systematic D) Total
 
Answer & Explanation Answer: D) Total

Explanation:

Standard deviation measures total risk in stocks.

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Filed Under: Accounts Payable
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

1 1708
Q:

What is the differnce among public, protected and package access data?

Answer

If we are not using packages and if we are not using inheritance then there is no difference among public, protected and package access data.

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Subject: Java

0 1708
Q:

How to get contents of the folder?

Answer

File[] listFiles();


this method returns list of files stored in a directory.

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Subject: Java

0 1707
Q:

Why interface data is static?

Answer

Interface data is static data why bcoz interface supports multiple inheritance.


if inteface data is non-static then there is chance for replication of the data (bcoz of replication of data ambiguity problem occurs )

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Subject: Java

0 1707