Interview Questions

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

A delegate declares a ref type that references a named of anonymous method. Delegates are secure and type-safe. Consider them as type safe function pointers.

Customer Satisfaction means, dealing with the customer in a proper or positive way. Every individual mindset is  different so their cause and satisfactory leave also changed. So the main challenge of a worker of a call center is to make them understand that they are also concerned about their trouble.

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);

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.

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;

} 

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.