Interview Questions

Q:

What is static initializer block? What is its use?

Answer

A static initializer block is a block of code that declares with the static keyword. It normally contains the block of code that must execute at the time of class loading. The static initializer block will execute only once at the time of loading the class only.

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Subject: Java

0 2276
Q:

How is final different from finally and finalize()?

Answer final is a modifier which can be applied to a class or a method or a variable. final class can't be inherited, final method can't be overridden and final variable can't be changed.

finally is an exception handling code section which gets executed whether an exception is raised or not by the try block code segment.

finalize() is a method of Object class which will be executed by the JVM just before garbage collecting object to give a final chance for resource releasing activity.
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Subject: Java

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Q:

Video advertising on YouTube lets you

A) use pay-per-report analytics and pay for click-through only B) use pay-per-report analytics and pay a single monthly fee
C) use free video analytics D) pay a single monthly fee
 
Answer & Explanation Answer: C) use free video analytics

Explanation:
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Filed Under: Advertising and Media

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Q:

Name the framework that is used to construct application’s user interface for iOS.

Answer

The UIKit framework is used to develop application’s user interface for iOS. UIKit framework provides event handling, drawing model, windows, views, and controls specifically designed for a touch screen interface.

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Subject: IOS

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Q:

why overriding finalize() method?

Answer

If constructor opens the file 


finalize() method closes that file.


 


If constructor opens the connection 


finalize() method closes that connection.


 


To perform finalization operation we must overriding finalize method.

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Subject: Java

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Q:

The accounting process is correctly sequenced as

A) Identifying→recording→communicating B) Identifying→communicating→recording
C) Communicating→Recording→Identifying D) Recording→Communicating→Identifying
 
Answer & Explanation Answer: A) Identifying→recording→communicating

Explanation:
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Filed Under: Bank Interview
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

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Q:

How do you decide when to use ArrayList and When to use LinkedList?

Answer

If you need to support random access, without inserting or removing elements from any place other than the end, then ArrayList offers the optimal collection. If, however, you need to frequently add and remove elements from the middle of the list and only access the list elements sequentially, then LinkedList offers the better implementation.

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Subject: Java

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Q:

How will u send data from a cobol file to db2 table?

Answer

USING HOST VARIABLE we can pass data from COBOL to DB2

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