APEX SESSIONS QUIZ 5

A class is a template or blueprint from which objects are created.

• True

• False

In processing records (inserting or updating). if you want any error that occurs during bulk processing to be thrown as an Apex exception. Then You must use ?

• DML

• Database class methods

There is list of 100 records. This is to be inserted into the system. In some of the records there is an error those cannot be inserted. How will you allow the partial Insertion to be done.

• Using DML

• Database.insert(listName,false)

• insert listName;

A constructor is code that is invoked when an object is created from the class

• True

• False

Constructor cannot have a return type.

• True

• False

This access modifier is the default, and means that the method or variable is accessible only within the Apex class in which it’s defined. If you don’t specify an access modifier, the method or variable is .......?

• public

• private

• protected

• global

What will the output of the following code.

String myString = 'abcd'; 

Integer result = myString.length(); 

System.debug(result);

• 4

• error

• 3

• abcd

Which one is used to store data in the form of key-value pairs, where each unique key maps to a single value.

• Maps

• List

• Set

• Database

Which method to use from the following. To find the count of number of elements in the List.

• size()

• Length()

• Count()

• size

If the list or map has no element.

List<Account> accList = new List<Account>();

accList.isEmpty();

What does isEmpty() method returns ?

• true

• false