Need help with number 3 on this java question and 4 if you can do that too. Will upvote.

This is the code I have done so far:

public static void sort(String[] array) { if (array.length == 0) return; // Checking if string is empty or not // Determining length of our input string int max = 0; for (int i = 1; i > buckets = new HashMap>(bucketCount); // creating the buckets char a = 'a'; for (int i = 0; i ()); } // assign array values into buckets for (int i = 0; i  bucket = buckets.get(key); // do an insertion sort on bucket for (int i = 1; i = 0 && bucket.get(j).compareToIgnoreCase(temp) > 0; j--){ // to "insert", we need to add and remove bucket.add(j+1, bucket.get(j)); bucket.remove(j); } // place the saved value in the proper location bucket.add(j+1, temp); } // pile the current bucket back into array for (int j = 0; j   In this assignment, you are asked to write a program that reads a series of strings sepa- rated with comma from a given file. Your program nceds to alphabetically sort the strings using bucket sort and write the result in the output file. The strings in the output must be separated with comma. The names and addresses of input and output files are given by the user through console at the beginning of the program. 1 Bucket Sort Bucket sort, or bin sort, is a sorting algorithm that works by distributing the elements into a number of buckets. Each bucket is then sorted individually. To sort each bucket in this assignment, you need to use the sort() method in java ntil.Arrays class. 29 25 3 49 9 37 21 43 0-9 10-19 20-29 30-39 40-49 43 37 49 25 37 49 21 29 43 -9 10-19 20-29 30-39 40-49 3 9 21 25 29 37 43 49 Figure 1: Example of bucket sort for sorting mimbers 29, 25, 3, 49, 9, 37, 21, 13. Numbers are distributed among bins (left image). Then, clements are sorted within cach bin (right image)  In this assignment, you are asked to write a program that reads a series of strings sepa- rated with comma from a given file. Your program nceds to alphabetically sort the strings using bucket sort and write the result in the output file. The strings in the output must be separated with comma. The names and addresses of input and output files are given by the user through console at the beginning of the program. 1 Bucket Sort Bucket sort, or bin sort, is a sorting algorithm that works by distributing the elements into a number of buckets. Each bucket is then sorted individually. To sort each bucket in this assignment, you need to use the sort() method in java ntil.Arrays class. 29 25 3 49 9 37 21 43 0-9 10-19 20-29 30-39 40-49 43 37 49 25 37 49 21 29 43 -9 10-19 20-29 30-39 40-49 3 9 21 25 29 37 43 49 Figure 1: Example of bucket sort for sorting mimbers 29, 25, 3, 49, 9, 37, 21, 13. Numbers are distributed among bins (left image). Then, clements are sorted within cach bin (right image)