Question 1

Write a class called MyArray with static methods as follows (re-use code from previous assignments

if you want):

• double sum(double[] a) – returns the sum of the entries in the array a.

• double[] fill(int n, double v) – returns an array of n doubles, all of whose values are v.

• double[] random (int n) – return an array of n random doubles.

• double min(double[] a) – returns the minimum element of the array a.

• double max(double[] a) – returns the maximum element of the array a.

• double average(double[] a) – returns the average (or mean) of the elements of the array a.

• double variance(double[] a) – returns the variance of the elements of the array a (note: this

method should call your average method).

• double stdDev(double[] a) – returns the standard deviation of the elements of the array a (note:

this method should call your variance method).

• double[] read() – reads an array from the keyboard and returns it (read the number of elements

first, and then that many numbers).

• void print(double[] a) – prints an array a on one line with commas between elements (be

careful with the last element!).

Write a Main class with a main method that tests your MyArray class appropriately (i.e. by calling

each method at least once with various inputs), and printing the results.

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Subject | Computer |

Due By (Pacific Time) | 03/05/2014 12:00 am |

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