added extra function testing

.idea/vcs.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>
\ No newline at end of file

.idea/workspace.xml

 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="ChangeListManager">
-    <list default="true" id="721d25be-807f-4a41-a78a-d223bc93b2f4" name="Default Changelist" comment="" />
+    <list default="true" id="721d25be-807f-4a41-a78a-d223bc93b2f4" name="Default Changelist" comment="">
+      <change afterPath="$PROJECT_DIR$/.idea/vcs.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/Lab.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/Lab.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/Run.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/Run.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/Student.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/Student.java" afterDir="false" />
+    </list>
     <option name="SHOW_DIALOG" value="false" />
     <option name="HIGHLIGHT_CONFLICTS" value="true" />
     <option name="HIGHLIGHT_NON_ACTIVE_CHANGELIST" value="false" />
     <option name="LAST_RESOLUTION" value="IGNORE" />
   </component>
+  <component name="FileTemplateManagerImpl">
+    <option name="RECENT_TEMPLATES">
+      <list>
+        <option value="Class" />
+      </list>
+    </option>
+  </component>
+  <component name="Git.Settings">
+    <option name="RECENT_GIT_ROOT_PATH" value="$PROJECT_DIR$" />
+  </component>
   <component name="ProjectId" id="1YkgsSC8Xg5K755bG14UR2JIGI5" />
+  <component name="ProjectLevelVcsManager" settingsEditedManually="true" />
   <component name="ProjectViewState">
     <option name="hideEmptyMiddlePackages" value="true" />
     <option name="showExcludedFiles" value="true" />
@@ -15,9 +32,11 @@
   </component>
   <component name="PropertiesComponent">
     <property name="RunOnceActivity.ShowReadmeOnStart" value="true" />
+    <property name="SHARE_PROJECT_CONFIGURATION_FILES" value="true" />
     <property name="project.structure.last.edited" value="Modules" />
     <property name="project.structure.proportion" value="0.0" />
     <property name="project.structure.side.proportion" value="0.0" />
+    <property name="settings.editor.selected.configurable" value="preferences.lookFeel" />
   </component>
   <component name="RunManager">
     <configuration name="Run" type="Application" factoryName="Application" temporary="true" nameIsGenerated="true">
@@ -51,21 +70,25 @@
       <screen x="0" y="0" width="1366" height="728" />
     </state>
     <state x="275" y="21" key="#Project_Structure/0.0.1366.728@0.0.1366.728" timestamp="1583492226195" />
-    <state width="1366" height="181" key="GridCell.Tab.0.bottom" timestamp="1583492438374">
+    <state width="1366" height="180" key="GridCell.Tab.0.bottom" timestamp="1583495551043">
+      <screen x="0" y="0" width="1366" height="728" />
+    </state>
+    <state width="1366" height="180" key="GridCell.Tab.0.bottom/0.0.1366.728@0.0.1366.728" timestamp="1583495551043" />
+    <state width="1366" height="180" key="GridCell.Tab.0.center" timestamp="1583495551042">
       <screen x="0" y="0" width="1366" height="728" />
     </state>
-    <state width="1366" height="181" key="GridCell.Tab.0.bottom/0.0.1366.728@0.0.1366.728" timestamp="1583492438374" />
-    <state width="1366" height="181" key="GridCell.Tab.0.center" timestamp="1583492438374">
+    <state width="1366" height="180" key="GridCell.Tab.0.center/0.0.1366.728@0.0.1366.728" timestamp="1583495551042" />
+    <state width="1366" height="180" key="GridCell.Tab.0.left" timestamp="1583495551042">
       <screen x="0" y="0" width="1366" height="728" />
     </state>
-    <state width="1366" height="181" key="GridCell.Tab.0.center/0.0.1366.728@0.0.1366.728" timestamp="1583492438374" />
-    <state width="1366" height="181" key="GridCell.Tab.0.left" timestamp="1583492438374">
+    <state width="1366" height="180" key="GridCell.Tab.0.left/0.0.1366.728@0.0.1366.728" timestamp="1583495551042" />
+    <state width="1366" height="180" key="GridCell.Tab.0.right" timestamp="1583495551042">
       <screen x="0" y="0" width="1366" height="728" />
     </state>
-    <state width="1366" height="181" key="GridCell.Tab.0.left/0.0.1366.728@0.0.1366.728" timestamp="1583492438374" />
-    <state width="1366" height="181" key="GridCell.Tab.0.right" timestamp="1583492438374">
+    <state width="1366" height="180" key="GridCell.Tab.0.right/0.0.1366.728@0.0.1366.728" timestamp="1583495551042" />
+    <state x="184" y="0" key="SettingsEditor" timestamp="1583493438190">
       <screen x="0" y="0" width="1366" height="728" />
     </state>
-    <state width="1366" height="181" key="GridCell.Tab.0.right/0.0.1366.728@0.0.1366.728" timestamp="1583492438374" />
+    <state x="184" y="0" key="SettingsEditor/0.0.1366.728@0.0.1366.728" timestamp="1583493438190" />
   </component>
 </project>
\ No newline at end of file

src/Lab.java

@@ -9,11 +9,12 @@ public class Lab {
      * constructor
      *
      * @param cap is the lab capacity
-     * @param d   is the date
+     * @param day   is the date
      */
-    public Lab(int cap, String d) {
+    public Lab(int cap, String day) {
+        students = new Student[100];
         capacity = cap;
-        day = d;
+        this.day = day;
         currentSize = 0;
     }
 
@@ -63,7 +64,11 @@ public class Lab {
      * @param students is the new students list
      */
     public void setStudents(Student[] students) {
-        this.students = students;
+        int j =0 ;
+        for (Studenti : students){
+            this.students[j] = i;
+            j++;
+        }
 
     }
 
@@ -116,6 +121,15 @@ public class Lab {
      */
     public void setCapacity(int capacity) {
         this.capacity = capacity;
+        Student[] students1 = new Student[capacity];
+        for (int i = 0 ; i < students.length && i < capacity ; i++){
+            students1[i] = students[i];
+        }
+        students = new Student[capacity];
+        for (int i=0 ; i <  capacity ; i++ ){
+            students[i] = students1[i];
+        }
+
     }
 }
 

src/Run.java

@@ -5,7 +5,13 @@ public class Run {
         Student std1 = new Student("Ehsan", "Edalat", "9031066");
         Student std2 = new Student("Seyed", "Ahmadpanah", "9031806");
         Student std3 = new Student("Ahmad", "Asadi", "9031054");
-
+        //creating a students array
+        Student[] students = new Student[3];
+        //initializing the students in the array
+        students[0] = std1;
+        students[1] = std2;
+        students[2] = std3;
+        //running the simple functions in the AP manual
         std1.print();
         std1.setGrade(15);
         std1.print();
@@ -17,6 +23,31 @@ public class Run {
         std3.print();
         std3.setFirstName("HamidReza");
         std3.print();
+        //running extra functions
+        //setting the day
+        String day = new String("98/1/23");
+        //setting the capacity
+        int cap = 3;
+        //initializing Lab constructor
+        Lab lab = new Lab(cap,day);
+        //setting the students
+        lab.setStudents(students);
+        //using labs print method
+        lab.print();
+        //now lets set a new day
+        String newDay = new String("98/2/2");
+        lab.setDay(newDay);
+        System.out.println( "this is the new lab day -> " + lab.getDay());
+        //now to show that no one can attend the lab when its full
+        Student std4 = new Student("new students first name","new students last name ","9031059");
+        lab.enrollment(std4);
+        //now lets increase the classes capacity
+        lab.setCapacity(4);
+        //the new lab student can be enrolled
+        lab.enrollment(std4);
+        //printing the labs new list
+        lab.print();
+
 
 
     }

src/Student.java

@@ -24,7 +24,7 @@ public class Student {
     }
 
     /**
-     * @param firstName set first nameof a student
+     * @param fName set firstname of a student
      */
     public void setFirstName( String fName){
         firstName = fName;