Write a public static method called averageOfTwo that takes an ArrayList as a pa

Question

Write a public static method called averageOfTwo that takes an ArrayList as a parameter, and returns another ArrayList. The returned ArrayList should have a size that is 1/2 the size of the original. The elements of the returned ArrayList should be the average of 2 elements from the original ArrayList. For example, if the values {1, 2, 3, 4, 5, 9} are passed in, averageOfThree should return the list {1.5, 3.5, 7.0}. You may ignore the case where the original ArrayList has an odd number of elements.

Explanation / Answer

/* method to find average of consecutive elements in aaray and store in another array and return it */

public static ArrayList<Double> averageTwo( ArrayList<Double> numbers, int length)    {
  
    ArrayList<Double> average = new ArrayList<Double>();
    int i,j=0;
    for ( i = 0; i < length/2 ; i=i+2 ) {
        average.get(j) = (numbers.get(i)+numbers.get(i+1))/2;
        j++;
    }

    return (number);
}

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