Add: a4 test cases

assignment4/Question1/StartGrading.java

@@ -0,0 +1,12 @@
+public class StartGrading {	
+	public static void testCourse() 
+	{ 
+		//  Since we cannot create any Course object,
+		//the testCourse method of the Course class must be empty. 
+	} 
+  
+	public static void main(String[] args)  
+	{ 
+		testCourse(); 
+	} 
+}