Interview Questions

Q:

What is the difference between the functions unlink and unset in PHP?

Answer

The function unlink() is to remove a file, where as unset() is used for destroying a variable that was declared earlier.

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Subject: PHP

1 4127
Q:

If sub class data member is hiding super class data member then how to access super class data member inside sub class methods?

Answer

use super keyword.


super keyword points immediate super class.


Class Sample {


int a =23;


 }


Class Sub extends Sample { 


 String a = "bablu";


 void show() {


 System.out.println(a); //bablu


 System. out. println(this.a); //bablu


 System. out.println(super.a); //23


}


}


Class Demo {


Public static void main(string[] args) {


sub s = new Sub();


s.show();


}


}


 

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Subject: Java

1 4118
Q:

Where does the allocaters are implemented?

A) Template library B) Standard library
C) C++ code library D) None of these
 
Answer & Explanation Answer: B) Standard library

Explanation:

Allocaters are implemented in C++ standard library but it is used for C++ template library.

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Filed Under: C++

1 4113
Q:

Explain what is injector ?

Answer

1.  An injector is a service locator.
2.  It is used to retrieve object instances as defined by provider, instantiate types, invoke methods and load modules.
3. There is a single injector per Angular application, it helps to look up an object instance by its name.

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3 4075
Q:

What is the minimum period of time for which one can open an FD(Fixed Deposit) account ? 

A) 15 days B) 6 months
C) 7 days D) 1 year
 
Answer & Explanation Answer: C) 7 days

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

5 4073
Q:

How can we distinguish between an online and batch program in IMS environment?

Answer

If in application program IO-PCB is there then it is a online program. In ENTRY statement IO-PCB must be listed first and then DB-PCB.

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1 4063
Q:

How to write Regression test cases? What are the criteria?

Answer

Regression test cases are also based on the requirement documents. They are written more into detail and with every release (build), the testers need to do regression testing. The criteria for regression testing are; there should be no major defects while we do our smoke test and functional testing.

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Subject: QA Testing

0 4061
Q:

Would I use print "$a dollars" or "{$a} dollars" to print out the amount of dollars in this example?

Answer In this example it wouldn’t matter, since the variable is all by itself, but if you were to print something like "{$a},000,000 mln dollars", then you definitely need to use the braces.
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Subject: PHP

0 4057