Analyze the following code: import java.util.*; public class Test { public static void main(String[] args) { PriorityQueue queue= } } new PriorityQueue( Arrays.asList(60, 10, 50, 30, 40, 20)); for (int i: queue) System.out.print(i + " "); The program displays 60 10 50 30 40 20 The program displays 10 20 30 40 50 60 The program displays 60 50 40 30 20 10 There is no guarantee that the program displays 10 20 30 40 50 60

IN JAVA PLEASE, need help finding an element in the list     /**     * Returns whether the given value exists in the list.     * @param value - value to be searched.     * @return true if specified value is present in the list, false otherwise.     */     public int indexOf(int value) {        //Implement this method                return -1;    }

Starter code for ShoppingList.java   import java.util.*;import java.util.LinkedList; public class ShoppingList{    public static void main(String[] args)    {        Scanner scnr=new Scanner(System.in);        LinkedList<ListItem>shoppingList=new LinkedList<ListItem>();//declare LinkedList        String item;        int i=0,n=0;//declare variables        item=scnr.nextLine();//get input from user        while(item.equals("-1")!=true)//get inputuntil user not enter -1        {            shoppingList.add(new ListItem(item));//add into shoppingList LinkedList            n++;//increment n            item=scnr.nextLine();//get item from user        }        for(i=0;i<n;i++)        {            shoppingList.get(i).printNodeData();//call printNodeData()for each object        }    }} class ListItem{    String item;        //constructor    ListItem(String item)    {        this.item=item;    }        void printNodeData()    {        System.out.println(item);    }}

import java.util.Scanner; public class Playlist {      // TODO: Write method to ouptut list of songs      public static void main (String[] args) {      Scanner scnr = new Scanner(System.in);             SongNode headNode;                                                    SongNode currNode;      SongNode lastNode;       String songTitle;      int songLength;      String songArtist;       // Front of nodes list                                                                               headNode = new SongNode();      lastNode = headNode;       // Read user input until -1  entered      songTitle = scnr.nextLine();      while (!songTitle.equals("-1")) {         songLength = scnr.nextInt();         scnr.nextLine();         songArtist = scnr.nextLine();                  currNode = new SongNode(songTitle, songLength, songArtist);         lastNode.insertAfter(currNode);         lastNode = currNode;                  songTitle = scnr.nextLine();      }            // Print linked list…