Java Code Using Vectors with Iterators

import java.util.*; // gives us access to Vector and Iterator classes

Vector gradeComponents = new Vector(); /* declare and define vector

of grade components */

. . .

// add elements to the vector using addElement() method

. . .

Iterator i = gradeComponents.iterator(); /* obtain an iterator from

vector of grade components */

while ( i.hasNext() ) { /* boolean iterator method - true

when more grade components exist */

. . .

GradeComponent gc = (GradeComponent) i.next();

// using iterator, obtains next object from vector of grade components.

// we must cast the object to GradeComponent before assigning to gc!

. . .

= gc.getEarnedPoints(); // access current grade component's earned pts.

= gc.getTotalPoints(); // access current grade component's total pts.

. . .

}