Java 6 Illuminated: An Active Learning Approach, 2nd Edition

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Take care to avoid compro-

mising the encapsulation

of your linked list.Do not

return an object reference

to an item still on the list.

Return a reference to a

copy of that item.

SOFTWARE

ENGINEERING TIP

1030 CHAPTER 14 An Introduction to Data Structures

The peek method is coded at lines 59–80. We traverse the list in the same

way as the delete method, except that because we will not delete a node, we

do not need to mark the node before current.

If we do not find a node containing a Player whose id is searchID, we throw

an exception at lines 74–75. If we find one, we return a copy of the Player

object contained in that node at line 78 so that we do not br ...