//sortbyweight. use bucket sort to sort the letters into four

//sortByWeight. Use bucket sort to sort the letters into four categories.
public static LinkedList[] sortByWeight(Letter[] letters) {
//code
}
public class Tester{   public static void main(String[] args)   {       Letter[] letters = new Letter[10];       letters[0] = new Letter(Abby, 55555, 0.2);       letters[1] = new Letter(Joaquin, 24689, 0.25);       letters[2] = new Letter(Frank, 34567, 0.3);       letters[3] = new Letter(Ben, 76543, 3.2);       letters[4] = new Letter(Evgeni, 15212, 0.2);       letters[5] = new Letter(John, 11111, 5.2);       letters[6] = new Letter(Evan, 55555, 10.4);       letters[7] = new Letter(Will, 86793, 0.1);       letters[8] = new Letter(Thong, 90515, 1.4);       letters[9] = new Letter(Jan, 90120, 20.2);             LinkedList[] sortedByWeight = LetterSorter.sortByWeight(letters);             System.out.println(Actual: + sortedByWeight[0].contains(letters[0]));       System.out.println(Expected: true);
       System.out.println(Actual: + sortedByWeight[1].contains(letters[8]));       System.out.println(Expected: true);
public class Letter{   public String to;   public String zipcode;   public double weight;     public Letter(String to, String zipcode, double weight)   {       this.to = to;       this.zipcode = zipcode;       this.weight = weight;   }}