(a) Implement (in Java) the RadixSort algorithm to sort in increasing order an array of integer keys.

public void radixSort(int arr[])

In your implementation you must consider that each key contains only even digits (0, 2, 4, 6, and 8). Your program must detect the case of odd digits in the keys, and, in this case, abort.

Note: To storage and process the bucket lists, use an ArrayList structure.

(b) What is the running time complexity of your radixSort method? Justify.

Why would a programmer use the logical operator and in an if statement? a: when an action is to be taken that requires both conditions to be falseb: when an action is to be taken that requires both conditions to be truec: when an action is to be taken that requires the first condition to be falsed: when an action is to be taken that requires the second condition to be truei took the test and the answer is b.

Write the command that can be used to answer the following questions. (hint: try each out on the system to check your results.) a. find all files on the system that have the word test" as part of their filename. b. search the path variable for the pathname to the awk command. c. find all files in the /usr directory and subdirectories that are larger than 50 kilobytes in size. d. find all files in the /usr directory and subdirectories that are less than 70 kilobytes in size. e. find all files in the / directory and subdirectories that are symbolic links. f. find all files in the /var directory and subdirectories that were accessed less than 60 minutes ago. g. find all files in the /var directory and subdirectories that were accessed less than six days ago. h. find all files in the /home directory and subdirectories that are empty. i. find all files in the /etc directory and subdirectories that are owned by the group bin."

When you interpret the behavior of others according to your experiences and understanding of the world your evaluation is