please do the "TODO" is the test import java.io.IOException; import java.nio.charset.StandardCharsets; import java.nio.file.Files; import java.nio.file.Paths; import java.util.List; import java.util.stream.Collectors; class Word { private String w; Word (String w) { this.w = w; } /** * this functionally reduces our hash structure (in our case, HashSet) to a list (due to hashing at the same spot) * after your tests are created, modify this hash function to something of your choice * see how much you can improve your timing :) * (YOU MAY NOT USE BUILT-IN hashCode) */ // TODO after testing public int hashCode () { return 7; } } class Words { static String filename = "commonwords.txt"; // from http://www.mieliestronk.com/corncob_lowercase.txt static List slist; static List wlist; static { try { // note that objects in our slist will have the default hashCode; whereas wlist is a list of objects // from our Word class that has our own hashCode method implemented slist = Files.readAllLines(Paths.get(filename), StandardCharsets.UTF_8); wlist = slist.stream().map(Word::new).collect(Collectors.toList()); } catch (IOException e) { throw new Error(); } } } 

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import org.junit.jupiter.api.Test; import java.time.Duration; import java.time.Instant; import java.util.HashSet; import java.util.List; class WordsTest { // write your own tests timing how long it takes to build a hashset with a Listof String and then a Listof Word // refer to Lab 3 tests if you do not remember how to time tests using methods of the Instant & Duration class //this Duration class are not completed 

Duration time (Random r, int size, int bound) { Instant start = Instant.now(); for (int i=0; i<100; i++) { } for (int i=0; i 
 @Test void timeW () { // TODO } }
 
 
 
 
 
 
 
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and here is some thing in "commonwords.txt"
 
aardvark aardwolf aaron aback abacus abaft abalone abandon abandoned abandonment abandons abase abased abasement abash abashed abate abated abatement abates abattoir abattoirs