Quick change to the access Modifiers for fields in Worker,Task and Assignmentmanager, refactored tests to use getWorkerMap

src/main/java/hhn/temp/project/Task.java

@@ -1,11 +1,11 @@
 package hhn.temp.project;
 
 public class Task {
-    String name;
-    String description;
-    int taskId;
-    int workerId;
-    TaskState state;
+    private String name;
+    private String description;
+    private int taskId;
+    private int workerId;
+    private TaskState state;
     public Task(int taskId, int workerId, String name, String description) {
         this.name = name;
         this.description = description;