Question

java (data structures) 8) Suppose you have the following code:

:ArrayOrderedList myL = new ArrayOrderedList( );

Iterator it = myL.iterator( ); //answer the following questions:

a) What does the method, iterator( ) return?

b) According the use above, where is this iterator( ) method written?

c) Write the lines of code (loop) to print all the Student data in the ordered list using the iterator, it.

Answer 1

a. iteratr() method returns the iterator over the values in the collection

b. iterator() method must have been writter in the class ArrayOrderedList and It must have implemented the iterator<T> interface

c.

Iterator it = myL.iterator( );

while(it.hasNext()){

//it.next() returns an Object

Student obj = (Student)it.next();

System.out.println(obj.toString());

}