CS 1713 Introduction to Programming II Spring 2012 Daily Answers

Class 21:

1. ArrayList<String> myList;
2. true

3. public static double[] greaterThanZeroOnly(double[] list) {
      int count = 0;
      double[] newList;
      for (int i=0; i<list.length; i++)
         if (list[i] > 0)
            count++;
      newList = new double[count];
      count = 0;
      for (int i=0; i<list.length; i++)
         if (list[i] > 0) {
            newList[count] = list[i];
            count++;
         }
      return newList;
   }
   

4. public static void printFirstBeginsWithVowel(ArrayList list) {
      String vowels = "aeiouAEIOU";
      String thisOne;
      for (int i=0; i<list.size(); i++) {
         thisOne = list.get(i);
         if ((thisOne.length() > 0) && (vowels.indexOf(thisOne.charAt(0)) != -1)) {
            System.out.println(thisOne);
            return;
         }
      }
   }