Complete the MyLL class:

package lab$08$;

public class MyLL $\{$

private class Node $\{$

public Node$($T val$)\{$ data $=$ val; $\}$

public Node$($T val, Node next$)\{$ data $=$ val; this.next $=$ next;$\}$

public T data;

public Node next;

$\}$

private Node head;

MyLL$()\{$

$//$ fill this in

$\}$

public void Insert$($T previous, T value$)$ throws Exception $\{$

$//$ insert a new node with value "value" after the node with value "previous".

$\}$

public void Append$($T value$)\{$

$//$ add a new node with value "value" at the end of the list. Head is a special case...

$\}$

public boolean Find$($T value$)\{$

$//$ return true if "value" is in the list, false if not

$\}$

public boolean Remove$($T value$)\{$

$//$ remove "value" from the list. return true if it was found and removed, false otherwise

$\}$

$\}$

Tests that need to be passed:

package lab$08$;

import static org.junit.Assert.$*$;

import org.junit.Assert;

import org.junit.Test;

public class MyLLUnitTests $\{$

@Test

public void findWithEmptyList$()$ throws Exception $\{$

var ll $=$ new MyLL$()$;

Assert.assertFalse$($ll$.$Find$("$hello$"))$;

$\}$

@Test

public void findWithNonEmptyList$()$ throws Exception $\{$

var ll $=$ new MyLL$()$;

ll$.$Append$("$goodbye$")$;

Assert.assertFalse$($ll$.$Find$("$hello$"))$;

$\}$

@Test

public void findWithOneItemList$()$ throws Exception $\{$

var ll $=$ new MyLL$()$;

ll$.$Append$("$hello$")$;

Assert.assertTrue$($ll$.$Find$("$hello$"))$;

$\}$

@Test

public void findWithManyItemList$()$ throws Exception $\{$

var ll $=$ new MyLL$()$;

ll$.$Append$("$hello$")$;

ll$.$Append$("$there$")$;

ll$.$Append$("$General$")$;

ll$.$Append$("$Kenobi$")$;

Assert.assertTrue$($ll$.$Find$("$hello$"))$;

Assert.assertTrue$($ll$.$Find$("$Kenobi$"))$;

Assert.assertFalse$($ll$.$Find$("$Anakin$"))$;

$\}$

@Test

public void findThenRemoveThenAdd$()$ throws Exception $\{$

var ll $=$ new MyLL$()$;

ll$.$Append$("$hello$")$;

ll$.$Append$("$there$")$;

ll$.$Append$("$General$")$;

ll$.$Append$("$Kenobi$")$;

Assert.assertFalse$($ll$.$Find$("$Anakin$"))$;

ll$.$Remove$("$Kenobi$")$;

Assert.assertFalse$($ll$.$Find$("$Kenobi$"))$;

ll$.$Insert$("$General$",$"Anakin"$)$;

Assert.assertTrue$($ll$.$Find$("$Anakin$"))$;

$\}$

$\}$