Consider the Following Code Snippet

question 75

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 = (Object) box.getData() ;

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

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Definitions:

Decreasing-Cost Industry

An industry in which the costs of production decrease as the industry grows and output increases.

LRAC Curve

Stands for Long-Run Average Cost curve, which shows the lowest average cost at which a firm can produce any given level of output in the long term when all inputs are variable.

Decreasing-Cost Industry

An industry in which production costs decrease as the industry grows and output increases, often due to economies of scale.

LRAC Curve

The Long-Run Average Cost curve, showing the lowest possible cost of producing different levels of output when all inputs are variable.