Interview Questions

Q:

 What is the string contained in s after following lines of code?

StringBuffer s = new StringBuffer(“Hello”); s.deleteCharAt(0);  ?

A) llo B) Hllo
C) ello D) H
 
Answer & Explanation Answer: C) ello

Explanation:

deleteCharAt() method deletes the character at the specified index location and returns the resulting StringBuffer object.

So after deleting the character at 0 ie 'H', the string returns 'ello' as the output.

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Filed Under: Java - Technology
Job Role: Analyst , IT Trainer

3 15757
Q:

main() {

int i;

printf("%d",scanf("%d",&i)); // value 10 is given as input here

}

A) 1 B) 2
C) 3 D) 4
 
Answer & Explanation Answer: A) 1

Explanation:

Scanf returns number of items successfully read and not 1/0. Here 10 is given as input which should have been scanned successfully. So number of items read is 1.

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Filed Under: Java - Technology

2 15353
Q:

What is the default return type of a function ?

A) int B) void
C) float D) char
 
Answer & Explanation Answer: B) void

Explanation:
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Filed Under: C++ - Technology

19 15347
Q:

What is the difference between debenture and preference share ?

Answer

The difference between Debentures and Preferential Shares is as follows:

1) Person holding debentures has owed money to a company, while Preferential Shareholder could be considered as a partial owner of the company.

2) A Preference shareholder earns dividends if the company is making profits, however a debenture holder needs to be paid irrespective of making profits or losses.

3) A debenture holder would be paid the capital invested at the end of a stipulated term. A preference shareholder is not promised return of capital invested; instead he earns dividends till the time the company exists and is profitable.

4) A debenture holder earns interest on the capital invested till the capital is not returned, while a preference shareholder is paid dividends till the time the company exists.

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13 15204
Q:

The total sum of the goods and services produced in a country in a year, minus depreciation is called as ________.

A) Net Domestic Product B) Gross National Income
C) Gross Domestic Product D) Net National Product
 
Answer & Explanation Answer: A) Net Domestic Product

Explanation:

Gross Domestic Product : 

It is the total value of all final goods and services produced within the boundary of country during the given period of time. 

Gross National Product :

It is the total value of the total output or production of final goods and services produced by the nationals of a country during a given period of time. 

Gross National Income : 

It is the total domestic and foreign output claimed by residents of a country, consisting of gross domestic product (GDP) plus factor incomes earned by foreign residents, minus income earned in the domestic economy by non-residents.

Net National Product :

The total value of goods produced and services provided in a country during one year, after depreciation of capital goods has been allowed for.

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Filed Under: Bank Interview - Accounting and Finance
Exam Prep: Bank Exams , CAT
Job Role: Bank Clerk , Bank PO

19 14957
Q:

A piece of icon or image on a web page associated with another webpage is called

A) url B) plugin
C) hyperlink D) none of the mentioned
 
Answer & Explanation Answer: C) hyperlink

Explanation:

In computing, a hyperlink, or simply a web link, is an icon or reference to data that links to another file or object that the reader can follow by clicking. The text which contains hyperlinks is called as hypertext.

 

A_piece_of_icon_or_image_on_a_web_page_associated_with_another_webpage_is_called1563599363.jpg image

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13 14942
Q:

Write an SQL Query find number of employees according to gender whose DOB is between 01/01/1960 to 31/12/1975.

Answer

SELECT COUNT(*), sex from Employees  WHERE  DOB BETWEEN ‘01/01/1960 ' AND ‘31/12/1975’  GROUP BY sex;

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Subject: SQL - Technology

15 14897
Q:

What is the difference between stack and array?

Answer

Stack:


 - Stack is a ordered collection of items


 - Stack is a dynamic object whose size is constantly changing as items are pushed and popped .


 - Stack may contain different data types


Array:


- Array is an ordered collection of items


- Array is a static object i.e. no of item is fixed and is assigned by the declaration of the array


- It contains same data types.

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Subject: C++ - Technology Exam Prep: GATE

24 14843