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

1074 CHAPTER 14 An Introduction to Data Structures

Figure 14.19

Opening Window

To test your code, compile and run the LinkedListPractice.java file, which

contains the main method. When the program begins, a window will dis-

play the state of the linked list (the list is empty when we start), along with

various buttons labeled “insert,”“delete,”“traverse,”“count,” and “clear,” as

shown in Figure 14.19.

To insert or delete a value, type the integer into the text field labeled “Node

Data,” then click on the “insert” or “delete” button. The application only

accepts integers greater than or equal to 0 and less than or equal to 9999; it

will not let you enter ...