You are given the following Java program, which manipulates an ArrayList of strings:

$```$

java

import java.util.ArrayList;

public class ArrayListQuestion $\{$

public static void main$($String$[]$ args$)\{$

ArrayList words $=$ new ArrayList;

words.add$("$hello$")$;

words.add$("$world$")$;

words.add$("$java$")$;

words.add$("$coding$")$;

$//$ Perform some operations

words.add$(2,$ "midterm"$)$;

words.remove$(3)$;

words.set$(1,$ "exam"$)$;

for $($String word : words$)\{$

System.out.print$($word $+"")$;

$\}$

$\}$

$\}$

$```$

Questions:

$1.$ What is the final content of the words ArrayList after the program executes?

$2.$ Describe the time complexity $($in terms of Big$-$O notation$)$ for each of the following operations in the code:

$-$ words.add$(2,$ "midterm"$)$

$-$ words.remove$(3)$

$-$ words.set$(1,$ "exam"$)$

Explain.your.answer.for.each.operation $\backslash (\{\}\_\{$i$\}\backslash )$