Sawaal

 Technology Questions

Popular Latest Rated
Q:

What do you mean by late binding?

Answer

Late binding refers to function calls that are not resolved until run time. Virtual functions are used to achieve late binding. When access is via a base pointer or reference, the virtual function actually called is determined by the type of object pointed to by the pointer.

Report Error

View answer Workspace Report Error Discuss

Subject: C++

0 3027
Q:

What is the role of the DataSet object in ADO.NET?

Answer

One of the major component of ADO.NET is the DataSet object, which always remains disconnected from the database and reduces the load on the database.

Report Error

View answer Workspace Report Error Discuss

Subject: .NET

1 3024
Q:

What is factory method in AngularJS ?

A) It generates the facts and figures B) It is used to create the service
C) It is used to calculate the factorial of a number D) All the above
 
Answer & Explanation Answer: B) It is used to create the service

Explanation:

In general, Services are Javscript functions and are responsible to do a specific tasks. Factories implements module pattern in which we use a factory method to generate an object which is use for building models.

It's syntax is
module.factory('factoryName', function);

Report Error

View Answer Report Error Discuss

Filed Under: Web Technology
Job Role: Analyst , Software Architect

1 3016
Q:

What are defaults? Is there a column to which a default can’t be bound?

Answer

A default is a value which will be used by a column, if no value is supplied to that column while inserting data.


Yes, IDENTITY and TIMESTAMP columns are free from the bounds of default.

Report Error

View answer Workspace Report Error Discuss

Subject: SQL

0 3015
Q:

How to define a constant variable in Java?

Answer The variable should be declared as static and final. So only one copy of the variable exists for all instances of the class and the value can't be changed also.
static final int PI = 2.14; is an example for constant.
Report Error

View answer Workspace Report Error Discuss

Subject: Java

1 3014
Q:

Does the order of public and static declaration matter in main() method?

Answer No. It doesn't matter but void should always come before main().
Report Error

View answer Workspace Report Error Discuss

Subject: Java

0 3013
Q:

How is sign stored in a COMP field?

Answer

It is stored in the most significant bit. Bit is ON if -ve, OFF if +ve.

Report Error

View answer Workspace Report Error Discuss

Subject: Mainframe Interview

1 3013
Q:

What are the operators available in dynamic memory allocation?

A) new B) delete
C) compare D) both a & b
 
Answer & Explanation Answer: D) both a & b

Explanation:

new and delete operators are mainly used to allocate and deallocate
during runtime.

Report Error

View Answer Report Error Discuss

Filed Under: C++

1 3007