using java, finish the two arrayList methods below: public int indexOf(Object o) { } public E remove(int index) { } and then create a class to test the ArrayList methods
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using java, finish the two arrayList methods below:
public int indexOf(Object o) {
}
public E remove(int index) {
}
and then create a class to test the ArrayList methods
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- Write a Java method named average. The method should take an ArrayList of Integers as a parameter, compute the average of the elements in the ArrayList and return the average to the calling method.Using JAVA, write a method that modifies an ArrayList<String>, moving all strings starting with an uppercase letter to the front, without otherwise changing the order of the elements. Write a test program to demonstrate the correct operation of the method.Given an ArrayList of integers, return an ArrayList where all the odds are before the evens in the order that they occur. import java.util.ArrayList;public class EvenAfterOdds{public static ArrayList<Integer> solution(ArrayList<Integer> nums){// ↓↓↓↓ your code goes here ↓↓↓↓return new ArrayList<>();}}
- Write a program in Java using ArrayList to remove duplicates in the array {0,1,4,5,8,0,9,4}.Using the picture, use Java to design and implement the class PascalTriangle that will generate a Pascal Triangle from a given number of rows. Represent each row in a triangle as a list and the entire triangle as a list of these lists, implement the class ArrayList for these lists.Write a Java method that will take in a generic ArrayList with Doubles (reference type). Have the method take each Double and convert it to an Integer and store it into another generic ArrayList that holds Integers. When done, return the new Integer ArrayList.
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- Using Java - write a new class called Rack, to store an ArrayList of Tiles, to sort them using the Selection Sort algorithm, and finish the program. Code: class Main { publicstaticvoid main(String[] args) { Rack craigTiles = new Rack(); craigTiles.addTile(new Tile('H', 4)); craigTiles.addTile(new Tile('E', 1)); craigTiles.addTile(new Tile('L', 1)); craigTiles.addTile(new Tile('L', 1)); craigTiles.addTile(new Tile('O', 1)); craigTiles.addTile(new Tile('Z', 10)); craigTiles.addTile(new Tile('Y', 4)); craigTiles.sortHighToLow(); System.out.println("Craig's rack of tiles, in order from most valuable to least:"); System.out.println(craigTiles); Rack bettoTiles = new Rack(); bettoTiles.addTile(new Tile('E', 1)); bettoTiles.addTile(new Tile('A', 1)); bettoTiles.addTile(new Tile('S', 1)); bettoTiles.addTile(new Tile('D', 2)); bettoTiles.addTile(new Tile('W', 4)); bettoTiles.addTile(new Tile('T', 1)); bettoTiles.addTile(new Tile('N', 1)); bettoTiles.sortHighToLow();…How do I sort tiles from least valuable to most valuable? import java.util.ArrayList;class Rack{private ArrayList<Tile> Tile;public Rack(){Tile = new ArrayList<Tile>();}public void addTile(Tile t){Tile.add(t);}public String toString(){String str = "";for(int i=0; i < Tile.size() ; i++)str = str + Tile.get(i);return str;}public void sortHighToLow(){int i, j, min;int n = Tile.size();for (i = 0; i < n-1; i++){min = i;for (j = i+1; j < n; j++){if(Tile.get(j).compareTo(Tile.get(min)) < 0)min = j;}//Swap.Tile t = Tile.get(min);Tile t1 = Tile.get(i);Tile.set(min, t1);Tile.set(i, t);}}}class Main{public static void main(String[] args){Rack craigTiles = new Rack();craigTiles.addTile(new Tile('H', 4));craigTiles.addTile(new Tile('E', 1));craigTiles.addTile(new Tile('L', 1));craigTiles.addTile(new Tile('L', 1));craigTiles.addTile(new Tile('O', 1));craigTiles.addTile(new Tile('Z', 10));craigTiles.addTile(new Tile('Y',…In java Write a method public static ArrayList<Integer> append(ArrayList<Integer> a, ArrayList<Integer> b) that appends one array list after another. Ex: a = 1 2 3 4 5, b = 6 7 8 9 10 then append returns 1 2 3 4 5 6 7 8 9 10
