Technology Questions

Q:

In a class if private data member is declared then how to set data to that private data member?

Answer

By using method.


The method used to set the data is called setter method.

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Subject: Java

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Q:

How do you parse/validate the XML document?

Answer

Parsing the XML document is the only way to validate the XML file. Validation is done by either DOM parser or the SAX parser. 

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Subject: Web Technology

0 1836
Q:

You want only a vertical scrollbar and no horizontal scrollbar on your page. How would you do it?

Answer

- This can be done by defining the frame with SCROLLING = auto and having content to just fit into this frame. 


- SCROLLING="yes" gets the scroll bar on both the sides, even when not needed. 


- SCROLLING="no" doesn’t get the scrollbars at all, even when they are needed.


 

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Q:

What is COM?

Answer

COM is short for Component Object Model. It is a Microsoft technology that allows developers to make use of reusable components and services provided by Microsoft. COM technology includes COM+, DCOM and ActiveX.

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Q:

What is the differences between structure and table in data dictionary in ABAP?

Answer

Structure and table both are 2/2 matrices but there are many differences between table and structure.

1. Table can store the data physically but a structure dose not store.
2. Table can have primary key but a structure dose not have.
3. Table can have the technical attribute but a structure dose not have.

structure doesn't contain technical attributes.
structure doesn't contain primary key.
structure doesn't stores underline database level.

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Subject: ABAP

0 1830
Q:

What is BCP ? When is it used ?

Answer

The Bulk Copy Program (BCP) is a command-line utility that ships with Microsoft SQL Server. It is a tool used to duplicate enormous quantity of information from tables and views. It does not facsimile the structures same as foundation to target.
BULK INSERT command helps to bring in a data folder into a record, table or view in a user-specific arrangement. With BCP, you can import and export large amounts of data in and out of SQL Server databases quickly and easily. Any DBA who has utilized this functionality will agree that BCP is an essential tool.

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Q:

Explain Overriding Polymorphism.?

Answer

Overriding means changing behavior of methods of base class in derive class by overriding the base class methods. If class A is a base class with method ’calculate’ and class B inherits class A, thus derives method ’calculate’ of class A. The behavior of ’calculate’ in class B can be changed by overriding it.

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Subject: Java

0 1828
Q:

What does isNaN function do?

Answer

NaN stands for ‘not-a-number’. The function isNaN determines the argument or the value is a NaN. The function returns true if the argument is not a number, otherwise returns false.

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Subject: Web Technology

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