SCJP6 Exam notes

[nikunj jariwala]

I'll keep adding stuff to this page as I prepare for my exam.

http://nikunjjariwala.blogspot.com/2010/04/sun-certified-java-programmer-exam.html

Thanks,
Nikunj Jariwala

[John Mercier]

Hello, Thanks for the notes. I am confused about this though

You can do Object[] myArr = new JButton[5]; but you cannot do List alist = new ArrayList ();

It's my understanding that List is the interface ArrayList uses, so having List alist refer to an ArrayList is not only possible but the prefered method of using ArrayList. I haven't tried to compile this so I know I could be wrong so please let me know if this is true.

[Rajeev Rnair]

John Mercier wrote:Hello, Thanks for the notes. I am confused about this though

You can do Object[] myArr = new JButton[5]; but you cannot do List alist = new ArrayList ();

It's my understanding that List is the interface ArrayList uses, so having List alist refer to an ArrayList is not only possible but the prefered method of using ArrayList. I haven't tried to compile this so I know I could be wrong so please let me know if this is true.

     List alist = new ArrayList ();

this is perfectly legal and a standard format because "ArrayList" implements "List" interface!

[nikunj jariwala]

The HTML took the generics as HTML code. I have fixed it now.
Thanks for pointing it out.

- Nikunj

[Striver Tha]

Thanks for sharing this. It's pretty useful.