tungwaiyip.info

home

about me

links

Blog

< May 2003 >
SuMoTuWeThFrSa
     1 2 3
4 5 6 7 8 910
11121314151617
18192021222324
25262728293031

past articles »

Click for San Francisco, California Forecast

San Francisco, USA

 

New Language Features in JDK 1.5

This slashdot posting points to an interview with Joshua Bloch on the New Language Features in JDK 1.5. Generics is a much awaited enhancement. Today, without the language support, I ask every programmer to minimally document the data type used in a comment, like

  Map userTable;   // username(String) => UserRecord

Still many people fail to do just that. I have to track down the usage of the collection to deduce what data type they are using :(

A generic declaration would be

  Map<String, UserRecord> userTable;

This seems to keep Java collection's light-weight design. It provides some compile time checking and implicit typecasting without the complexity of C++'s template. I still remember spending a lot time debugging the COMPILATION in C++. An compiler error message would spend multiple lines with long and unreadable class names decompose of a template instances...

One reader has pointed out the work on JSR 166 Concurrency Utilities led by Doug Lea. Doug Lea's book Concurrent Programming in Java and the programming library is definitive in this area. It is great that it gets formalized and included in JDK.

2003.05.09 [, ] - comments

 

 

blog comments powered by Disqus

past articles »

 

BBC News

 

White House insists Trump believes Russia still a threat (18 Jul 2018)

 

Jewish nation state: Israel approves controversial bill (19 Jul 2018)

 

Pakistan election: BBC interview with Dawn newspaper boss stirs controversy (18 Jul 2018)

 

Antarctic seabed site gets protection after reporter's submarine trip (18 Jul 2018)

 

Australia overtaking UK for overseas students (18 Jul 2018)

 

The women using traditional make-up as sunscreen (18 Jul 2018)

 

New UK Brexit secretary set for Brussels talks (19 Jul 2018)

 

Court rules South Korea must pay for Sewol victims (19 Jul 2018)

 

Australia PM says Pope must sack archbishop over cover-up (19 Jul 2018)

 

Turkey ends state of emergency after two years (18 Jul 2018)

more »

 

SF Gate

 

EU fines Google a record billion over mobile practices (18 Jul 2018)

 

Facebook keen on robots as the future of AI (18 Jul 2018)

 

Ship traffic, July 19 (18 Jul 2018)

 

Business News Roundup, July 18 (17 Jul 2018)

 

Powell says strong economy will keep rate hikes coming (17 Jul 2018)

 

Lawmakers attack social media’s liability exemption for posts (17 Jul 2018)

more »


Site feed Updated: 2018-Jul-19 00:00