Consider the Following Code Snippet

question 44

Multiple Choice

Consider the following code snippet:
public class Box<E>
{
private E data;
public Box() { ...}
public void insert(E value) { ...}
public E getData() { ...}
}
What will result from executing the following code?
Box<String> box = new Box<>() ;
...
box.insert("blue Box") ;
String b = (String) box.getData() ;

• A)correct, with necessary cast
• B)run-time error
• C)compiler error
• D)correct, but unnecessary cast

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Definitions:

Box

A cloud storage and collaboration platform that allows users to store, share, and access files online.

Lookup

The action or process of searching for information or data in a database, spreadsheet, or another digital environment.

Combo Boxes

A graphical user interface element that combines a drop-down box with a text box, allowing the user to select an item from a list or type a value.

Option Group

A collection of options presented in user interfaces, where the user can select one (or sometimes multiple) options from the group.