New tested Stopwatch :D

src/Emploice/Employees.java

@@ -23,4 +23,5 @@ public class Employees
     {
         return yearsWithCompany;
     }
+    //Emploice mus wash hans
 }

src/IceCreamMachineStuff/IceCreamMachine.java

@@ -2,6 +2,7 @@ package IceCreamMachineStuff;
 
 public class IceCreamMachine
 {
+
     double Cream;
     double Sugar;
     double Icecream;

src/Phonebook/Phonebook.java

@@ -1,11 +1,12 @@
 package Phonebook;
 
 
+import java.util.LinkedList;
 import java.util.Stack;
 
 public class Phonebook
 {
-    public Stack<PhoneNumber> Numbers = new Stack<PhoneNumber>();
+    public LinkedList<PhoneNumber> Numbers = new LinkedList<>();
 
     public boolean insert(String phoneNum, String name)
     {
@@ -26,6 +27,7 @@ public class Phonebook
         }
         PhoneNumber toInsert = new PhoneNumber(phoneNum, name);
         Numbers.push(toInsert);
+
         return true;
 
     }

src/Stopwatch/StopWatch.java

@@ -0,0 +1,36 @@
+package Stopwatch;
+
+import java.time.LocalTime;
+import java.time.temporal.ChronoUnit;
+
+public class StopWatch
+{
+    private LocalTime startTime,endTime;
+    StopWatch()
+    {
+        startTime=LocalTime.of(0,0,0);
+        endTime= LocalTime.of(0,0,0);
+    }
+    public LocalTime getStartTime()
+    {
+        return startTime;
+    }
+    public LocalTime getEndTime()
+    {
+        return endTime;
+    }
+    public LocalTime start()
+    {
+       return startTime=LocalTime.now();
+    }
+    public LocalTime stop()
+    {
+        return endTime=LocalTime.now();
+    }
+    public Long getElapsedTime()
+    {
+        Long milliesbetween= ChronoUnit.MILLIS.between(startTime,endTime);
+        return (milliesbetween);
+    }
+
+}

src/Stopwatch/StopWatchTest.java

@@ -0,0 +1,53 @@
+package Stopwatch;
+
+import org.junit.Test;
+
+import java.util.concurrent.TimeUnit;
+
+import static org.junit.Assert.*;
+
+public class StopWatchTest
+{
+
+    @Test
+    public void getElapsedTime() throws InterruptedException
+    {
+       StopWatch Watch1 = new StopWatch();
+       StopWatch Watch2 = new StopWatch();
+       StopWatch Watch3 = new StopWatch();
+       StopWatch Watch4 = new StopWatch();
+        Watch1.start();
+        try
+        {
+            TimeUnit.MINUTES.sleep(1);
+        }
+        catch (InterruptedException e)
+        {
+            e.printStackTrace();
+        }
+        Watch1.stop();
+
+        Watch2.start();
+        TimeUnit.MILLISECONDS.sleep(69);
+        Watch2.stop();
+
+        Watch3.start();
+        TimeUnit.MILLISECONDS.sleep(10);
+        Watch3.stop();
+
+        Watch4.start();
+        TimeUnit.MILLISECONDS.sleep(12);
+        Watch4.start();
+        TimeUnit.MILLISECONDS.sleep(69);
+        Watch4.stop();
+
+
+
+        assertEquals(60000, Watch1.getElapsedTime(), 10);
+        assertEquals(69, Watch2.getElapsedTime(),10);
+        assertEquals(10, Watch3.getElapsedTime(),10);
+        assertEquals(69, Watch4.getElapsedTime(),10);
+
+
+    }
+}

src/coffee/Coffee.java

@@ -4,6 +4,7 @@ import java.util.Date;
 import java.util.Stack;
 
 public class Coffee extends Batch {
+	
     String name;
     double price;
     int stock;