public ListTest() {

this.coursesToSelect = new ArrayList();

}

public static void main(String[] args) {

ListTest lt =new ListTest();

lt.testAdd();

}

Exception in thread "main" java.lang.Error: Unresolved compilation problems: 

Type mismatch: cannot convert from ArrayList to ListTest

The method add(Course) is undefined for the type ListTest

The method get(int) is undefined for the type ListTest

at collection.ListTest.<init>(ListTest.java:9)

at collection.ListTest.main(ListTest.java:22)