Write a method that removes adjacent duplicates from an array list. Complete this code. import java.util.ArrayList; public class ArrayListUtil { /** Removes adjacent duplicates from an array list of strings. @param word an array list of strings */ public static void removeAdjacentDuplicates(ArrayList words) { . . . } }

Please answer the problem in the screenshot. Please use the methods below as a base. The language is in Java. import java.util.*;   class HeapMax { // we go with arraylist instead of array for size flexibility private ArrayList<Integer> data;   // DO NOT MODIFY THIS METHOD public HeapMax() { data = new ArrayList<Integer>(0); }   // insert a new element and restore max heap property public void insert(int element) { }   // return max public int getMax() { // remove this line return 0; }   // remove max and restore max heap property public int removeMax() { // remove this line return 0; }   // heap builder public void build(int[] arr) { }   // print out heap as instructed in the handout public void display() { }   // you are welcome to add any supporting methods }

// Only few methods are mentioned here //Do remaining methods to pass the test methods  /*** Removes the specified (num) of the given element from the internal ArrayList of elements. * If num <= 0, don't remove anything. * If num is too large, remove all instances of the given element from the internal ArrayList of elements.* Example:* - For a defined CustomIntegerArrayList containing the integers: 1, 2, 1, 2, 1* - Calling remove(2, 1) would remove the first 2 instances of 1 * - The CustomIntegerArrayList will then contain the integers: 2, 2, 1* - For a defined CustomIntegerArrayList containing the integers: 100, 100, 100 * - Calling remove(4, 100) would remove all instances of 100 * - The CustomIntegerArrayList will then be empty* - For a defined CustomIntegerArrayList containing the integers: 5, 5, 5, 5, 5 * - Calling remove(0, 5) would remove nothing* * @param num number of instances of element to remove * @param element to remove*/ public void remove(int num, int element) {//…

The following code prints out all permutations of the string generate. Insert the missing statement. public class PermutationGeneratorTester {   public static void main(String[] args)    {        PermutationGenerator generator = new PermutationGenerator("generate");        ArrayList<String> permutations = generator.getPermutations();        for (String s : permutations)        {            ____________________                   }     } }

Given an array of numbers, and an integer, find the last index that    that integer appears in the array. If the number is not    found, return -1.   import java.util.ArrayList;public class LastIndexFound{public static int solution(ArrayList<Integer> nums, int numToFind){// ↓↓↓↓ your code goes here ↓↓↓↓return 0;}}

Explain the concept of two-way data binding with custom data types and complex objects. What challenges may arise when implementing it?

Question 16 What is output? import java.util.ArrayList; public class SimpleCar { @Override public String toString(){ return "I drive fast"; } public static void main(String[] args) { ArrayList myStuff; myStuff = new ArrayList(); myStuff.add(new String("Greetings")); myStuff.add(new Object()); myStuff.add(new SimpleCar()); for(Object item : myStuff) { System.out.println(item.toString()); } String Object SimpleCar java.lang.Object@19cc java.lang.Object@23fb java.lang.Object@ab79 java.lang.String@169b java.lang.Object@23fb java.lang.SimpleCar@a42b Greetings java.lang.Object@169b I drive fast }

java Create a static method that: is called repeatAll returns ArrayList of Booleans takes in a single parameter - an ArrayList of Booleans This method should modify its ArrayList parameter by repeating its ArrayList values. For example, if the parameter is   (true, false, false) The modified ArrayList should be   (true, false, false, true, false, false)    public static void main(String[] args) {    Scanner in = new Scanner(System.in);    int size = in.nextInt();    ArrayList<Boolean> list = new ArrayList<>();    for(int i=0; i < size; i++) {      list.add(in.nextBoolean());    }     System.out.println(repeatAll(list));   }  }

java Create a method that: is called timesTwo returns an ArrayList of Integers takes in a single parameter - an ArrayList of Integers called nums This method should take the ArrayList parameter and multiply every value by two.   public static void main(String[] args) {    Scanner in = new Scanner(System.in);    int size = in.nextInt();    ArrayList<Integer> list = new ArrayList<>();    for(int i=0; i < size; i++) {      list.add(in.nextInt());    }     System.out.println(timesTwo(list));   }  }

Method Details: public static java.lang.String getArrayString​(int[] array, char separator) Return a string where each array entry (except the last one) is followed by the specified separator. An empty string will be return if the array has no elements. Parameters: array - separator - Returns: stringThrows:java.lang.IllegalArgumentException - When a null array parameter is provided