Example Code Ch 09-5

question 46

Multiple Choice

Example Code Ch 09-5
Consider the following class definition:
public class AClass
{
protected int x;
protected int y;
public AClass(int a, int b)
{
x = a;
y = b;
}
public int addEm()
{
return x + y;
}
public void changeEm()
{
x++;
y--;
}
public String toString()
{
return "" + x + " " + y;
}
}
-Refer to Example Code Ch 09-5: You want addEm to now add all three values, return the sum, and changeEm to change x and y, but leave z alone. Which should you do?

• A) Redefine addEm and changeEm without referencing super.addEm() or super.changeEm().
• B) Redefine addEm to return the value of z+super.addEm(), but leave changeEm alone.
• C) Redefine changeEm to call super.changeEm() and then set z = x + y, but leave addEm alone.
• D) Redefine addEm to return the value of z+super.addEm() and redefine changeEm to call super.changeEm() and then set z = x + y.
• E) Redefine changeEm to call super.changeEm() without doing anything to z, and redefine addEm to return super.addEm().

---

Definitions:

Canada Revenue Agency

The federal agency responsible for administering tax laws for the Canadian government and various provinces and territories, as well as overseeing various social and economic benefit and incentive programs through taxation.

Income Tax Return

A document filed with the government that reports income, expenses, and other pertinent tax information.

Depreciation Method

A systematic approach used to allocate the cost of a tangible asset over its useful life, reflecting consumption, wear and tear, or obsolescence of the asset.

Units-of-Production Method

A depreciation method where the expense is based on the asset's usage, output, or units produced, rather than time.