Technology Questions

Q:

What are wrapped classes ?

Answer

Wrapped classes are classes that allow primitive types to be accessed as objects.

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Subject: Java

0 1754
Q:

How can your application perform actions that are provided by other application e.g. sending email?

Answer

Intents are created to define an action that we want to perform and the launches the appropriate activity from another application.


Code


        Intent intent = new Intent(Intent.ACTION_SEND);


        intent.putExtra(Intent.EXTRA_EMAIL, recipientArray);


        startActivity(intent);

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Q:

What is the similarity between Dynamic Binding and linking?

Answer

Dynamic binding is orthogonal to dynamic linking. Binding refers to the linking of a procedure call to the code to be executed in response to the call. Dynamic binding It is associated with polymorphism and inheritance, it(also known as late binding) means that the code associated with a given procedure call is not known until the time of the call at run-time.

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Subject: Java

0 1748
Q:

What is session storage and how can you create one?

Answer

Session storage is same like local storage but the data is valid for a session. In simple words the data is deleted as soon as you close the browser.


To create a session storage you need to use “sessionStorage.variablename” . In the below code we have a created a variable called as “clickcount”.


If you refresh the browser the count increases. But if you close the browser and start again the “clickcount” variable starts from zero.


if(sessionStorage.clickcount)


{


sessionStorage.clickcount=Number(sessionStorage.clickcount)+1;


}


else


{


sessionStorage.clickcount = 0;


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1 1746
Q:

How many interactive reports did you write?

Answer

In an Interactive Report, user can define maximum 20 secondary lists.

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Subject: SAP

0 1744
Q:

How to call a constructor in java?

Answer

Constructor chaining is the process of calling one constructor from another constructor with respect to current object.





Within same class: It can be done using this() keyword for constructors in same class


From base class: by using super() keyword to call constructor from the base class.

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Q:

Explain how to configure Trace switches in the application’s .config file.?

Answer

switches are configured using the .config file


<system.diagnostics>


<switches>


<add name="MyTraceSwitch" value="1" />


<add name="TraceSwitch2" value="1" />


</switches>


</system.diagnostics>


both are on.

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Subject: .NET

0 1740
Q:

What is IP address?

Answer

The internet address( IP address) is 32bits that uniquely and universally defines a host or router on the internet. The portion of the IP address that identifies the network is called netid. The portion of the IP address that identifies the host or router on the network is called hostid.

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