Please answer the questions below in the screenshot.

Given code:

import java.lang.AssertionError;

public class MyLinkedList $\{$

class Node $\{$

$//$ FIXME add member variables

Node$($T data$)\{//$ Node inherits T from MyLinkedList

$//$ FIXME

$\}$

$\}$

$//$ FIXME add member variables

$/**$

$*$ Construct an MyLinkedList.

$*/$

public MyLinkedList$()\{$

$//$ FIXME

$\}$

$/**$

$*$ Return the number of elements in the MyLinkedList.

$*$

$*$ @return The number of elements in the MyLinkedList.

$*/$

public int size$()\{$

return $0$; $//$ FIXME

$\}$

$/**$

$*$ Add an element to the end of the MyLinkedList.

$*$

$*$ @param element The element to add.

$*/$

public void add$($T element$)\{$

$//$ FIXME

$\}$

$/**$

$*$ Get the element at the specified index.

$*$

$*$ This function assumes that the index argument is within range of the MyLinkedList.

$*$

$*$ @param index The index to get.

$*$ @return The element at the specified index.

$*/$

public T get$($int index$)\{$

return null; $//$ FIXME

$\}$

$/**$

$*$ Remove the element at the specified index.

$*$

$*$ This function assumes that the index argument is within range of the MyLinkedList.

$*$

$*$ @param index The index to remove.

$*/$

public void remove$($int index$)\{$

$//$ FIXME

$\}$

$/**$

$*$ Create a String representation of the MyLinkedList.

$*$

$*$ @return A String representation of the MyLinkedList.

$*/$

public String toString$()\{$

String result $="\{"$;

if $($this$.$size$()>0)\{$

result $+=$ this.get$(0)$;

$\}$

for $($int i $=1$; i $$ this.size; i$++)\{$

result $+=","+$ this.get$($i$)$;

$\}$

result $+="\}"$;

return result;

$\}$

$/**$

$*$ Check that an MyLinkedList contains the same elements as an int array.

$*$

$*$ If the list and the array are not the same, throw an AssertionError.

$*$

$*$ @param list The MyLinkedList to check.

$*$ @param answer The expected answer, in the form of an int array.

$*/$

public static void assertArraysEqual$($MyLinkedList list, int$[]$ answer$)\{$

if $($list$.$size$()!=$ answer.length$)\{$

throw new AssertionError$("$Expected list of length $"+$ answer.length $+"$ but got $"+$ list.size$())$;

$\}$

for $($int i $=0$; i $$ answer.length; i$++)\{$

if $(($Integer$)$list$.$get$($i$)!=$ answer$[$i$])\{$

throw new AssertionError$("$Expected $"+$ answer$[$i$]+"$ but got $"+$ list.get$($i$)+"$ at index $"+$ i$)$;

$\}$

$\}$

$\}$

$/*$

$*$ Test that the empty arraylist has size $0.$

$*/$

public static void test$1()\{$

MyLinkedList list $=$ new MyLinkedList$()$;

int$[]$ answer $=$ new int$[0]$;

assertArraysEqual$($list$,$ answer$)$;

$\}$

$/*$

$*$ Test insertion into an arraylist $($without resizing$).$

$*/$

public static void test$2()\{$

MyLinkedList list $=$ new MyLinkedList$()$;

for $($int i $=0$; i $<mtext\; id="EditorElement\_306587"></mtext><mn\; id="EditorElement\_306588">3</mn>$; i$++)\{$

list.add$($i $*$ i$)$;

$\}$

int$[]$ answer $=\{0,1,4\}$;

assertArraysEqual$($list$,$ answer$)$;

$\}$

$/*$

$*$ Test deletion from an arraylist without emptying it$.$

$*/$

public static void test$3()\{$

MyLinkedList list $=$ new MyLinkedList$()$;

for $($int i $=0$; i $<mtext\; id="EditorElement\_306849"></mtext><mn\; id="EditorElement\_306850">5</mn>$; i$++)\{$

list.add$($i $*$ i$)$;

$\}$

list.remove$(1)$;

list.remove$(2)$;

int$[]$ answer $=\{0,4,16\}$;

MyLinkedList.assertArraysEqual$($list$,$ answer$)$;

$\}$

$/*$

$*$ Test deletion from an arraylist and emptying it$.$

$*/$

public static void test$4()\{$

MyLinkedList list $=$ new MyLinkedList$()$;

for $($int i $=0$; i $<mtext\; id="EditorElement\_307157"></mtext><mn\; id="EditorElement\_307158">5</mn>$; i$++)\{$

list.add$($i $*$ i$)$;

$\}$

list.remove$(1)$;

list.remove$(2)$;

$//$ delete the final remaining numbers

list.remove$(0)$;

list.remove$(0)$;

list.remove$(0)$;

int$[]$ answer$1=\{\}$;

MyLinkedList.assertArraysEqual$($list$,$ answer$1)$;

$//$ check that there are no last$-$element issues

for $($int i $=0$; i $<mtext\; id="EditorElement\_307466"></mtext><mn\; id="EditorElement\_307467">5</mn>$; i$++)\{$

list.add$($i $*$ i$)$;

$\}$

list.remove$(4)$;

list.add$(-1)$;

int$[]$ answer$2=\{0,1,4,9,-1\}$;

MyLinkedList.assertArraysEqual$($list$,$ answer$2)$;

$\}$

$/*$

$*$ Test insertion into an arraylist $($with resizing$).$

$*/$

public static void test$5()\{$

MyLinkedList list $=$ new MyLinkedList$()$;

for $($int i $=0$; i $<mtext\; id="EditorElement\_307781"></mtext><mn\; id="EditorElement\_307782">1</mn><mn\; id="EditorElement\_307783">2</mn>$; i$++)\{$

list.add$($i $*$ i$)$;

$\}$

int$[]$ answer $=\{0,1,4,9,16,25,36,49,64,81,100,121\}$;

MyLinkedList.assertArraysEqual$($list$,$ answer$)$;

$\}$

$/**$

$*$ Put the MyLinkedList through some simple tests.

$*$

$*$ @param args Ignored command line arguments.

$*/$

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

test$1()$;

test$2()$;

test$3()$;

test$4()$;

test$5()$;

System.out.println$("$pass$")$;

$\}$

$\}$