Write a for loop to initialize the objects in the ArrayList created in question number 2 above to -1. import java.util.*; public class test {     public static void main(String[] args)     {         int n = 25;         ArrayList list = new ArrayList(n);         for(int i = 0;i

4. What is the running time of the following code? Points] public static List makeList ( int N) ArrayList 1st = new ArrayList (); for ( inti =0; i < N; i++) { 1st.add (i); lst.trimToSize (); } }

This codes not complie it can you fix the code can complie it?   import java.util.ArrayList; public class Heap { void heapify(ArrayList hT, int i) { int size = hT.size(); int largest = i; int l = 2 * i + 1; int r = 2 * i + 2; if (l &lt; size &amp;&amp; hT.get(l) &gt; hT.get(largest)) largest = l; if (r &lt; size &amp;&amp; hT.get(r) &gt; hT.get(largest)) largest = r; if (largest != i) { int temp = hT.get(largest); hT.set(largest, hT.get(i)); hT.set(i, temp); heapify(hT, largest); } } void insert(ArrayList hT, int newNum) {     int size = hT.size();     if (size == 0) {     hT.add(newNum);     } else {     hT.add(newNum);     for (int i = size / 2 - 1; i &gt;= 0; i--) {     heapify(hT, i);     }     }     }     void deleteNode(ArrayList hT, int num) {         int size = hT.size();         int i;         for (i = 0; i &lt; size; i++) {         if (num == hT.get(i))         break;         }                 int temp = hT.get(i);         hT.set(i,…

Code debug JAVA     import java.util.ArrayList;public class ArrayList {public static ArrayList<Integer> reverse(ArrayList<Integer> list) {for (int i = 0; i < list.size(); i++) {System.out.println(list);}public static ArrayList<Integer> getReverse(ArrayList<Integer> list){for (int index = 0; index < list.size() / 2; index++) {int temp = list.get(index);list.set(index, list.get(list.size() - index - 1));//swaplist.set(list.size() - index - 1, temp); //swap}return list;}}public static void main(String[] args) {ArrayList<Integer> list = new ArrayList<>();list.add(1);list.add(2);list.add(3);System.out.println("Original elements : " + list);System.out.println("Reversed elements : " + getReverse(list));}}

java In this assignment you will swap a position in an array list with another. swap() gets 3 arguments, an Arraylist, a position, and another position to swap with. Example   swap(["one","two","three"],0,2)   returns:["three","two","one"]   public static ArrayList<String> swap(ArrayList<String> list,int pos1,int pos2)    public static void main(String[] args) {    Scanner in = new Scanner(System.in);    int size = in.nextInt();    int pos1 = in.nextInt();    int pos2 = in.nextInt();    ArrayList<String> list = new ArrayList<>();    for(int i=0; i < size; i++) {      list.add(in.next());    }     System.out.println(swap(list, pos1, pos2));   }  }

Exercise 2: Consider the following class: public class Sequence { private ArrayList values; public Sequence() { values = new ArrayList(); } public void add(int n) { values.add(n); } public String toString() { return values.toString(); } } Add a method public Sequence merge(Sequence other) that merges two sequences, alternating ele- ments from both sequences. If one sequence is shorter than the other, then alternate as long as you can and then append the remaining elements from the longer sequence. For example, if a is 1 4 9 16 and b is 9 7 4 9 11 then a.merge(b) returns the sequence 1 9 4 7 9 4 16 9 11 without modifying a or b.