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Consider the following code snippet for recursive addition:
int add(int i, int j)
{
// assumes i >= 0
if (i == 0)
{
return j;
}
else
{
return add(i - 1, j + 1);
}
}
Identify the terminating condition in this recursive method.
Consider the getArea method from the textbook shown below.
public int getArea()
{
if (width <= 0) { return 0; } // line #1
else if (width == 1) { return 1; } // line #2
else
{
Triangle smallerTriangle = new Triangle(width - 1); // line #3
int smallerArea = smallerTriangle.getArea(); // line #4
return smallerArea + width; // line #5
}
}
Where is/are the terminating condition(s)?
Consider the getArea method from the textbook shown below.
public int getArea()
{
if (width <= 0) { return 0; } // line #1
else if (width == 1) { return 1; } // line #2
else
{
Triangle smallerTriangle = new Triangle(width - 1); // line #3
int smallerArea = smallerTriangle.getArea(); // line #4
return smallerArea + width; // line #5
}
}
Where is/are the recursive call(s)?
What is required to make a recursive method successful?
I special cases that handle the simplest computations directly
II a recursive call to simplify the computation
III a mutual recursion
Consider the following code snippet:
public class Inventory implements Measurable
{
private int onHandCount;
. . .
double getMeasure();
{
return onHandCount;
}
}
Assume thatgetMeasure() is a method in the interface Measurable. The compiler complains that the getMeasure method has a weaker access level than the Measurable interface. Why?
Consider the following code snippet:
public class Inventory implements Measurable
{
private int onHandCount;
. . .
double getMeasure();
{
return onHandCount;
}
}
If getMeasure() is a method in the interface Measurable, what is wrong with this code?
Consider the following code snippet:
public class BankAccount implements Comparable<BankAccount>
{ . . .
public int compareTo(T other)
{
What is wrong with this code?
Consider the following code snippet:
public class Inventory implements Measurable
Which of the following statements about this code is correct?
You are creating a Vessel class which is supposed to use an interface named Measurable. Which of the following class declaration statements will accomplish this?
You are creating a Motorcycle class which is supposed to use an interface named Measurable. Which of the following class declaration statements will accomplish this?
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