Technology Questions

Q:

I do not want my class to be inherited by any other class. What should i do?

Answer You should declared your class as final. But you can't define your class as final, if it is an abstract class. A class declared as final can't be extended by any other class.
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Subject: Java

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Q:

Difference between transparent tables and pooled tables

Answer

Transparent tables: Transparent tables in the dictionary has a one-to-one relation with the table in database. Its structure corresponds to single database field. Table in the database has the same name as in the dictionary. Transparent table holds application data.



Pooled tables: Pooled tables in the dictionary has a many-to-one relation with the table in database. Table in the database has the different name as in the dictionary. Pooled table are stored in table pool at the database level.

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Subject: ABAP

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Q:

Why synchronization?

Answer

When ever two or more threads are sharing same data for updating then unpredicted result will be there in the data.


For Example take a thread is depositing amount in Account Object and another thread is withdrawing amount from the same Account Object.


when ever both threads are executed simultaneously then unexpected result is stored in the balance of the  Account Object. 

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Subject: Java

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Q:

What command would you type in at a command prompt to view the IP address of the remote computer?

Answer

Ping


Netstat

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Q:

Explain about services in Angular.js ?

Answer

In angular.js services are the singleton objects or functions that are used for carrying out specific tasks.
It holds some business logic and these function can be called as controllers, directive, filters and so on.

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Subject: Web Technology

4 2344
Q:

What is the difference between a regular bitmap and a nine-patch image?

Answer

In general, a Nine-patch image allows resizing that can be used as background or other image size requirements for the target device. The Nine-patch refers to the way you can resize the image: 4 corners that are unscaled, 4 edges that are scaled in 1 axis, and the middle one that can be scaled into both axes.


 

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Q:

What is the advantage of using ADO?

Answer

ADO or Active X Data objects, allows developers to create applications that can interoperate well with other data application services.

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Q:

why protected modifier?

Answer

Outside the package if any other class other than JVM calls the finalize method our class then it is not allowed

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Subject: Java

0 2336