7.2 Solutions

4 0 3
This is because the array has values 3 2 1 0 (at index value 0 1 2 3)
first println is list[1] + 2 which is 2 + 2 = 4
second println is list[1 + 2] which is list[3] = 0
third println is list[1] + list[2] which is 2 + 1 = 3

for (int i = 0; i < sample.length; i++)
   sample[i] = 1;

int temp = sample[0];
sample[0] = sample[SIZE - 1];
sample[SIZE - 1] = temp;

for (int i = 0; i < sample.length; i++)
   sample[i] = abs(sample[i]);

int sampleSum = 0;
for (int i = 0; i < sample.length; i++)
   sampleSum += sample[i];

for (int i = 0; i < sample.length; i++)
   if (i % 2 != 0)
      print(sample[i] + " ");
println();

float max (float[] a)
{
   float maxValue = a[0];
   for (int i = 1; i < a.length; i++)
      if(a[i] > maxValue)
         maxValue = a[i];
   return maxValue;
}

boolean equals (float[] a, float[] b)
{
   if (a.length != b.length)
      return false;
   else
   {
      for (int i = 0; i < a.length; i++)
         if (a[i] != b[i])
            return false;
      return true;
   }
}

// Assume Input.pde is in a tab
void setup()
{
   final int MAX_SCORE = 10;
   int[] scoreArray = new int[MAX_SCORE+1];
   int score;

   // This loop isn't really necessary since already all 0
   for (int i = 0; i <= MAX_SCORE; i++)
      scoreArray[i] = 0;

   do
   {
      score = getInt("Please enter a score out of " + MAX_SCORE);
      if (score >= 0 && score <= MAX_SCORE)
         scoreArray[score]++;
   } while (score >= 0);

   println("Score        # of Occurrences");
   for (int j = 0; j <= MAX_SCORE; j++)
      println(j + "              " + scoreArray[j]);

   int sum = 0, count = 0;
   for (int j = 0; j<= MAX_SCORE; j++)
   {
      sum += scoreArray[j] * j;
      count += scoreArray[j];
   }
   print("The mean score is ");
   println(round(1.0 * sum / count * 10) / 10.0);
}