Update CompanyEmployee methods and tests

In CompanyEmployee.java, added a new method company() to return the Company name, making the class more robust. Modified the doWork() method to make the output more general.

In SortGolfers.java, updated the comment lines to give a clearer understanding of the operation.

A new unit test for the company() method was created in CompanyEmployeeTest.java for better coverage.

src/main/java/interfaces/CompanyEmployee.java

@@ -12,9 +12,12 @@ public String getName() {
         return Employee.super.getName() + " works for " + Company.super.getName();
     }
 
-    @Override
+    public String company() {
+        return Company.super.getName();
+    }
+
     public void doWork() {
-        System.out.println("Preparing TPS reports for six different bosses...");
+        System.out.println("Work, work...");
     }
 
 }

src/main/java/sorting/SortGolfers.java

@@ -21,8 +21,8 @@ public void oldSchoolSort() {
 
     // default sort is by score, using streams
     public void defaultSort() {
-        golfers.stream()
-                .sorted()
+        golfers.stream()  // Stream<Golfer>
+                .sorted() // Stream<Golfer> (natural sort)
                 .forEach(System.out::println);
     }
 

src/test/java/interfaces/CompanyEmployeeTest.java

@@ -16,4 +16,10 @@ public void getName() {
         CompanyEmployee emp = new CompanyEmployee("Peter", "Gibbons");
         assertEquals("Peter Gibbons works for Initech", emp.getName());
     }
+
+    @Test
+    void getCompany() {
+        CompanyEmployee emp = new CompanyEmployee("Peter", "Gibbons");
+        assertEquals("Initech", emp.company());
+    }
 }