names of classes/variables/objects can be misleading!!!!" import java.util.HashSet; public class SetContainsLetter{ public static Object solution(HashSet nums, int elm){ // ↓↓↓↓ your code goes here ↓↓↓↓ return null;

Provide a different implementation of ChoiceQuestion. Instead of storing the choices in an array list, the addChoice method should add the choice to the question text. For this purpose, an addLine method has been added to the Question class. Use the following files: Question.java /**   A question with a text and an answer.*/public class Question{   private String text;   private String answer;    /**      Constructs a question with empty text and empty answer.   */   public Question()    {      text = "";      answer = "";   }    /**      Sets the answer for this question.      @param correctResponse the answer   */   public void setAnswer(String correctResponse)   {      answer = correctResponse;   }    /**      Checks a given response for correctness.      @param response the response to check      @return true if the response was correct, false otherwise   */   public boolean checkAnswer(String response)   {      return response.equals(answer);   }    /**      Add a line of text to…

please fix code to match "enter patients name in lbs"   thank you import java.util.LinkedList;import java.util.Queue;import java.util.Scanner; interface Patient {     public String displayBMICategory(double bmi);     public String displayInsuranceCategory(double bmi);} public class BMI implements Patient {     public static void main(String[] args) {         /*         * local variable for saving the patient information         */        double weight = 0;        String birthDate = "", name = "";        int height = 0;        Scanner scan = new Scanner(System.in);        String cont = "";        Queue<String> patients = new LinkedList<>();         // do while loop for keep running program till user not entered q        do {             System.out.print("Press Y for continue (Press q for exit!) ");            cont = scan.nextLine();            if (cont.equalsIgnoreCase("q")) {                 System.out.println("Thank you for using BMI calculator");                break;…

10. Consider the following method, shift, which is intended to shift the elements of arr one to the left. For example, if arr contains {{1, 2, 3}, {4, 5, 6}}, then shift (arr) should return {{2, 3, 1), (5, 6, 4}}. public static int[][] shift(int[][] arr) { int[][] ret = new int[arr.length] [arr[0].length]; for (int i = 0; i < arr.length; i++) { for (int j = 0; j < arr[0].length - 1; j++) { /* missing statement */ } ret[i][arr[0].length 1] = arr[1][0]; } return ret; } What choice could replace /* missing statement */ so that shift works as intended? A. ret[i][j] = arr[i][j-1]; B. ret[i][j] = arr[i][j+ 1]; C. arr[i][j] = ret[i][j - 1]; D. arr[i][j] = ret[i][j+ 1]; E. arr[i][j] ret[i][j];

Can someone help me with this code, I not really understanding how to do this?   import java.util.ArrayList;import java.util.HashMap;import java.util.Map;/*** @version Spring 2019* @author Kyle*/public class MapProblems {/*** Modify and return the given map as follows: if the key "a" has a value, set the key "b" to* have that value, and set the key "a" to have the value "". Basically "b" is confiscating the* value and replacing it with the empty string.** @param map to be edited* @return map*/public Map<String, String> confiscate(Map<String, String> map) {if (map.containsKey("a") && map.containsValue("a")) {}}/*** Modify and return the given map as follows: if the key "duck" has a value, set the key* "goose" to have that same value. In all cases remove the key "swan", the rest of the map* should not change.** @param map to be edited* @return map*/public Map<String, String> mapBird1(Map<String, String> map) {throw new UnsupportedOperationException("Not…

In JAVA, use a HashMap to count and store the frequency counts for all the words from a large text document. Using file util, please. Then, display the contents of this HashMap with words and frequency count.  Next, please create a set view of the Map and store the contents in an array. Sort this array based on key value and display it. Finally, sort the array in decreasing order by frequency and display it as well. Please label your explanation in the code Thank you