Example Code Ch 09-5

question 13

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: Which of the following would best redefine the toString method for BClass?

• A) public String toString(int z)
• {
• Return " " + x + " " + y + " " + z;
• }
• B) public String toString()
• {
• Return super.toString();
• }
• C) public String toString()
• {
• Return super.toString() + " " + z;
• }
• D) public String toString()
• {
• Return super.toString()+" " x+" "+y+" "+z;
• }
• E) public String toString()
• {
• Return " " + x + " + y + " " + z;
• }

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Definitions:

Marginal Utility

The increased satisfaction obtained from the consumption of an extra unit of a good or service.

Money Income

The total income received by an individual or household in monetary form from all sources before any taxes.

Schedules

Structured plans or lists detailing when events are supposed to take place, often used for organizing tasks, appointments, or transportation.

Marginal Utility

The additional satisfaction a consumer gains from consuming one more unit of a good or service.