ListIterator.java

package MMS;
/*
           Assignment number :10
           File Name : ListIterator.java
           Name: Ran Zaaroor
           Student ID : 209374040
           Email : Ran.zaaroor@gmail.com
       */
/**
 * Represents an iterator of a linked list of memory blocks.
 * <br> (Part of Homework 10 in the Intro to CS course, Efi Arazi School of CS)
*/
public class ListIterator {

    // Current position in the list (cursor)
    public Node current;

    /** Constructs a list iterator, starting at the given node */
    public ListIterator(Node node) {
        current = node;
    }

    /** Checks if this iterator has more elements to process */
    public boolean hasNext() {
        return (current != null);
    }

    /** Returns the next memory block in the list, and advances the cursor position.
     *  This method may be called repeatedly, to iterate through the list.
     *  @return the memory block at the cursor's location
    */
    public MemBlock next() {
        Node currentNode = current;
        current = current.next;
        return currentNode.block;
    }
}