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

 

Australian cardinal charged with sex offences (29 Jun 2017)

 

Migrant crisis: Italy threatens to shut ports (28 Jun 2017)

 

US orders tougher airline screening (28 Jun 2017)

 

Inmarsat's European short-haul wifi spacecraft launches (29 Jun 2017)

 

London terror hero: 'I wasn't backing down' (28 Jun 2017)

 

YouTube book shooting ends in death (28 Jun 2017)

 

Venezuela crisis: Hunt for pilot after attack on Supreme Court (28 Jun 2017)

 

Chile reaches Confederations Cup final (28 Jun 2017)

 

China bails activists at shoe factories linked to Ivanka Trump (28 Jun 2017)

 

Qatar condemns Saudi refusal to negotiate over demands (28 Jun 2017)

more »

 

SF Gate

 

Bay Area News (7 Jan 2012)

 

City Insider (11 Feb 2012)

 

Crime Scene (13 Feb 2012)

 

C.W Newius Column (10 Jan 2012)

 

C.W. Nevius Blog (11 Feb 2012)

 

Education News (10 Jan 2012)

 

KALW (11 Feb 2012)

 

Matier and Ross Blog (11 Feb 2012)

 

The iPhone turns 10; People joins Echo Show; Shkreli’s juror diss (28 Jun 2017)

 

1 in 5 Californians uninsured under GOP bill, study says (28 Jun 2017)

 

How artificial intelligence is taking on ransomware (28 Jun 2017)

 

WienerDrone takes flight; John Deere opens San Francisco lab (27 Jun 2017)

 

Business News Roundup, June 28 (27 Jun 2017)

 

Roundup weed killer ingredient to be listed as cancerous (27 Jun 2017)

more »

 


Site feed Updated: 2017-Jun-28 18:00