LinkedListExample

LinkedListExample -- using object references to create a linked list.

To see this example in action:

Compile the Java source file, LinkedListExample.java:
```
	javac LinkedListExample.java
```
Run the class:
```
	java LinkedListExample
```

Output:

    Using LinkInt class:
	first:  1
	second: 2
	third:  3

    Using Vector class:
	first:  1
	second: 2
	third:  3