Sping 03 Midterm 1 Solution

1 A. 12
B. Yes, an array index out of bounds exception could occur if list.length < 100 (or words to that effect)
C. Runtime error or Exception or Null Pointer Exception

D. 
5 20 
10 15
50 20

or syntax error

E.
2 3
4 9
2 3

F. Syntax error

G. false ( ignore capitilization, f = -1)
H. true ( ignore capitilization, t = -1)
I. 15 30

J.
12 10
20 10

K. 100
L. 10
M. 25
N. 19
O. 0.5 or .5

2.
double[] result = new double[limit + 1];
double val;
for(int x = 0; x < result.length; x++)
{	val = 0;
	for(int exp = 0; exp <= p.getDegree(); exp++)
		val += Math.pow(x,exp) * p.getCoefficient(exp);
	result[x] = val;
}
return result;


3. 
char[][] result = new char[rows][cols];
int currentChar = 0;
for(int row = 0; row < rows; row++)
	for(int col = 0; col < cols; col++)
	{	results[row][col] = list[currentChar];
		currentChar = (currentChar + 1) % list.length;
	}
return result;


4. 
public class Direction
{	public static final int NORTH = 0;
	public static final int EAST = 90;
	public static final int SOUTH = 180;
	public static final int WEST = 270;
	
	private int iMyDegrees;
	
	public Direction()
	{	iMyDegrees = 0;	}
	
	public Direction(int degrees)
	{	while(degrees < 0)
			degrees += 360;
		iMyDegrees = degrees % 360;
	}
	
	public int getDegrees()
	{	return iMyDegrees;	}
	
	public void reverse()
	{	iMyDegrees = (iMyDegrees + 180) % 360;	}
	
	public boolean equals(Object other)
	{	return iMyDegrees == ((Direction)other).iMyDegrees;	}
}