reverend: pro tip, when doing a search on google for any javadocs, always include the version number, otherwise you'll always get the very old 1.4 docs

alternatively, use the bot here

reverend: ex) PrintJob java 6

~javadoc PrinterJob

Fanook, please see java.awt.print.PrinterJob: http://java.sun.com/javase/6/docs/api/java/awt/print/PrinterJob.html

er PrinterJob java 6

Fanook: that's the version that was linked from itext

itext needs to update their shit

i figured finding the documentation at all was going above and beyond

i'm sure gocsp can motivate his lazy ass to find the docs for whatever version he's using

:)

~hibernate

schnippi, hibernate is a nice ORM [see orm] tool and can be found at http://www.hibernate.org/ and #hibernate

~hibernate~

schnippi, I have no idea what hibernate~ is.

i want make an app to send one form by gprs

send user pass origem number and destination number.. and record in DB

whats the best book to learn java? or maybe there isnt a best since all are knowledgable. but what is good for a noob

anyone use guice?

~beginners bibles

Get these: 1) Sun Java Tutorial (http://java.sun.com/docs/books/tutorial) 2) Bruce Eckel's "Thinking in Java" (http://www.mindview.net/Books/TIJ) (Get the 3rd edition, the 4th is only freely available up to chapter 7.)

creepa: just use java.sun.com/docs

ok ill check into them all

thank you

by the way

have you noticed that ^D actually doesn't quit a java program

you have to use ^C

you realize that ^D means end-of-file, right?

heh

TimothyA has never seen anyone use ^D before to end a program ;>.>

certainly not a java program

does that thing even have a function?

apart from signalling the end of a file.

FauxFaux does it occasionally, but mostly with retarded gnutils (like sort).

TimothyA: that depends entirely on the app

TimothyA: lots of things that read input from stdin (tr, sed, the python interpreter, whatever) can be quit with ^D.

FauxFaux: also, sort isn't retarded - it can't possibly do a sort until it knows it's read the entire input to be sort, and you're signalling "interrupt" rather than "end of input"

there's a bug in my code :/

ojacobson: Theoretically it could detect that it's recieving input from a tty and not be so bland, but I know. :)

FauxFaux: special cases are fragile. There's enough programs out there that make that distinction that act weirdly because of it that adding more seems kind of silly. :)

Like ls? ¬_¬

and a lot of things that use readline

(gnu readline *can* be used correctly in situations where TTY and non-TTY input both need to be handled, but the calling program needs to be aware of a few edge cases.)

for the restriction for applets to only connect to the server that serves the applet, what would be considered the server? is it identified by DNS name or what?

r0bby gives Myoma his dunce cap

you can keep it

no no i insist

:p

stty kill ^D

problem solved

cool

so checkout that then

?

aaaaaaaah fail

forget i just said that people

hi guys, I'm trying to pass a form data from a jsp into a java class which will perform some logic before forwarding to another jsp page (either success or failure). what is the best way to do this? how can I pass form data to a java class?

g'day. i'm using SimpleDateFormat.format(new Date()); - and on some windows machines it's reporting the date in local time, others in UTC. what would account for this difference?

what did you set your format pattern to?

"yyyy-MM-dd HH:mm:ss"

does a java applet's class have to be the in the same directory as the html page?

Look at the topic...

anyone?

concernedcitizen: Look at servlets.

what if I don't want to use servlets?

~java ee tutorial

for a tutorial on java ee see http://java.sun.com/javaee/5/docs/tutorial/doc/

concernedcitizen: you're supposed to.

it's the proper way to do things. -- you POST your form data to the servlet

applets

blow

alternatively, I can use pure jsp right?

yes, but ultimately, 'pure jsp' is just a servlet

and applets are a client side thing

JSPs are ultimately compiled into a servlet

servlet mapping scares me

:(

and embedding java code (scriptlets) into JSPs shows that you're clueless

'pure jsp', ultimately, are servlets

let's try a different arrangement

i wrote a scriptlet today.

Hahaha

am i clueless? :)

reverend: you fucktard!

I've just started in the ee tutorial's JSP chapter. It feels damn weird to write code in xml.

I guess it's something I'll get used to

reverend: Sorry, I really really hate them, use either EL or a taglib

you don't have to use jsp.

I guess the job is to minimize that and keep all the logic in beans

what's a bean then?

I've seen <jsp:usebean> and all that sort of shabangs

concernedcitizen: a Java class

~first cup

A friendly web page to get you started with Java programming: http://java.sun.com/docs/books/tutorial/getStarted/cupojava/

concernedcitizen: a convention for creating java classes.

~getting started

joed, getstarted is http://java.sun.com/tutorial/getStarted

~tell concernedcitizen about bean spec

concernedcitizen, beans spec is http://java.sun.com/products/javabeans/docs/spec.html

concernedcitizen: Why don't you start with the JSP / Servlet tutorials? If you are not suicidal after that look at Spring MVC..

the beans spec is rarely followed to the letter in making backing beans for jsp

if ever

java :(

If ever is a good way of putting that spec.

no offense intended, but personally I hate working with java for its complexity :-( only doing this for my college credits

concernedcitizen: put simply a bean is a domain model class.

Java is very simple.

it's not hard...

yes, java is easy..

nor is it complex

the EE cruft may be overly engineered.

the libraries and specs that people have made with and for java are often not as easy to grasp though

the EE stuff isn't too hard once you gte your feet wet

er, okay

or maybe I just chose to refer to it as black magic and not care

spring is black magic

concernedcitizen: See it this way, a simple C like OO like language with strong typing, it has what you expect from an imperative language and some more, excellent tooling and documentation. Simple (compared to some) threading and netwroking

Spring is simple as hell.

ee is vast and generally useless

joed: but HOW it does it :P

r0bby: ? Duh?

I just never cared i guess

r0bby: Proxies and very old paradigms.

r0bby shrugs

reverend wets r0bby's feet with some jms, iiop and jca.

joed slaps r0bby with an old trout

r0bby throws the trout at reverend

FOOD FIGHT!

i think the main thing is there's alot of confusion over EE, SE, ME etc.

the main difference between them in terms of syntax and operation

concernedcitizen: Okay, what language would not confuse you if you looked at libs?

EE --> Shit you don't need for a desktop app (somewhat), SE a desktop app, ME badly limited

i'm just saying for the normal guy on the street wouldn't know the difference between EE, SE and ME and its difference

It is just 'names', does not really matter, most webpeople will use EE with SE to do servlets.

concernedcitizen: you know, you don't *have* to deal with the EE, servlets etc. just to do HTTP

Quite true.

And that is really simple.

look at the java ee tutorial

r0bby: the one with about 1000 pages?

it's big but not hard to follow

tazle: just look at the tier you're interested in

(Web tier is where he should look)

Wich is about as nice as CGI.pm

r0bby: my next question would be "what are these tiers you speak of?"

it's basically separation of concerns

concernedcitizen: simply put, if you are starting, I'd not give a shit about existing stuff. Do something.

they explain it pretty well

concernedcitizen: Pretty much goes for anything / any language you are learning.

But for form processing servlets are the way to go

I am.

Having done it in its raw form is a good learning thing..

i'm currently doing up a facilities booking management system

I have my java entity classes done up, originally, I wanted to do a pure JSP setting (I have PHP background) but like you guys mentioned, I felt that it doesn't feel right to do logic on jsp (views)

hence my eariler question on trying to pass data to a non-jsp class/servlet :D

why are you obsessing about this?

you don't care

just php-style jsp it up

cybereal, All my code is working but Im plagued by key management issues, CA issues etc. What do you use for this?

mmm I use portecle for straight up management of keystores if that's what you mean

but we have some partial tools implemented in our products

as far as CA's go that's just an irritation as part of the tech

reverend: why are you insinuating that I am trying to pick a fight here?

portecle cant do respond to CSRs

I don't understand the hostility.

concernedcitizen: i'm not?

[10:09] <reverend> you don't care

cybereal, realhans, if a client and server have a common parent (eg, both keys are signed by the same CA) does the server trust the client? (eg, as a verified peer?)

if I didn't care, I wouldn't be here in the first place.

s/realhans//

< concernedcitizen> no offense intended, but personally I hate working with java for its complexity :-( only doing this for my college credits

Heh

concernedcitizen: that does say you dont give a shit

i guess i construed that as 'not caring'

i'm not trying to pick a fight, i'm just wondering why you are bothering

just get the credit and get out

concernedcitizen: reverend is a dissilusioned old firt that knows a hell of a lot more than you, irc is also a very direct medium.

concernedcitizen: But you set the stage with that comment...

this isn't the way to evangelize a language. just because I'm doing this for my college credits, doesn't mean that I don't care?

i'm genuinely not being irritable

but thanks for the help anyway

a real pity.

Damn, we are touchy.

haha, okay. take it easy, cupcake.

concernedcitizen: Doing it "pure jsp" is bad style

nobody meant to hurt your delicate feelings.

cybereal, ??

pure jsp is the easiest, simplest way to solve this problem

does that sound better?

r0bby: I think you just went offshore fishing in the dead sea.

it's also the ugliest

r0bby: yeah I know.

joed: ?!

i write apps in pure jsp all the time.

and they aren't ugly.

reverend: form processing?

"Prettier' or better does not help.

gambler: the server trusts the client if they trust the CA that signed the client's cert, the other things you said would just be coincidence

r0bby: no, i just add '.jsp' to my html pages

of course, 'form processing'

reverend: oh, i was referring to form processing

concernedcitizen: If you know PHP, you can do pretty much the same things in JSP.

that was sarcasm, wtf

reverend: i typed it before you said it :P

ugh

use jsp and jstl

easy, well documented

concernedcitizen: There might be better ways of doing it, acheiving something usually in my book is better than fapping.

don't need to learn any framework apis

just set up your backing beans, pass them form data, profit

Yup.

hell i'd prefer to do everything via AJAX :)

pchapman wrote a brilliant Xstream backed servlet for our last project, cut dev time into nothing.

pchapman works w/ you?

r0bby: Sometimes you scare me.

r0bby: yes.

I didn't know

joed: how?

my practices?

ajax?

r0bby <3s it

joed moves on.

im crazy, sue me

concernedcitizen: So, you good? Nobody is picking on you, I don't really belive in evangelism (Although if you want to give me money that would be cool).

it was a pretty simple servlet, too

Still saved us a shitload of work.

pchapman nods

i love xstream.

used it for persistence

Huh?

er wait

i could see that

that came out bad

i'm trying to read up on beans

~be r0bby

FileNotFoundException is a subclass of IOException; Exception won't directly catch that.

persisting settings?

it looks like <jsp:usebeans> can pass form data

persisting state

pchapman nods

concernedcitizen: Yes, it can.

haha, that r0bby factoid rocks

basically i decided to stay away from SQL dbs and use XML for persistence then chose Xstream to do it

still trying to understand how to use it.

concernedcitizen: as reverend said, if you read the whole bean spec - you will kinda giggle after a while.

holy christ r0bby

r0bby: Marshal/Unmarshal

r0bby is...dumb?

basically, he used xstream to serialize and deserialize state objects to filesystem

r0bby: you're so sharp, you're dull

for a very small project, i might do the same

Yeah, that is brilliant..

*very* small

pchapman: Yeah, thumbs up.

cybereal, in my set of keystores that is not the case. I am getting path certification errors up the wazoo

on the client side

I'm probably gonna rip out all the xstream stuff soonish

Hello, is there a function in an ArrayList to remove duplicates?

I

Yeah, first key to refactoring... Rip out the working stuff.

gambler: if you change out the truststore it won't have the default CA root certs in it anymore...

I'm working on a ArrayList<Integer>

Angel-SL, no. you might want to use a Set rather than a List if you don't want dups

Angel-SL: toss the list contents into a set

Angel-SL: look over the Collections and pick a

Fanook: duh...

cybereal, I am doing that. The client has {ca-key,client-key,client-key-signed,server-key} in its trust store. If I remove server-key it falls apart.

er {ca-cert,client-key,client-cert-signed,server-cert}

joed: I want to see if there's a better way to do it :S

server presently has {ca-cert,server-cert-signed,server-key,client-cert}

damn I was without internet access for 9 datys

I am trying to compile something very simple using the command prompt but I get garbled output from the compiler (Javac.exe). I am on windows vista x64

garbled?

like.. hmm..:jubei.java:1: class?Ainterface?A?_?+?- enum ????F?_???B

public Class Jubei

compile errors but in gibberish, any ideas what could be wrong?

how did you write your code?

does java compiler output localized error messages?

reverend: using notepad

without syntax highighting? wow.

i am only writing a basic test class to test my environment, i cant imagine why the output from javac.exe would be garbled like that

Jubei: what encoding did you save it in?

If I want to start listening to UDP on a DataGram socket all I need is to do is open it and loop socket.receive() right?

Jubei: looks like you have an encoding or locale problem

Erm, what type would I use to iterate thru a Map?

reverend, cybereal: let me check.

I mean for(... : ...)

you can't foreach on a map itself

Angel-SL: get one of the Sets and iterate through that. There are methods to get the keys, values, and pairs

reverend: encoding is ANSI

s/pairs/entries

hmm, odd

reverend: here is the complete output from javac.exe http://pastie.org/262270

paste your source

done, same pastie

well, even without being able to read that, I can see your class name doesn't match the file name

I'm trying to listen in on a port on a server... I don't know if some firewall is blocking it on the server, if the router stops signals from getting to there... What do I even look for?

Fanook, reverend: my problems are not the compiler errors, I know how to fix the errors, the problem is why the output is garbled?

right

no idea on that

that just looks odd in general

java has localized error messages? i dont think so.

hendrixski, if you have a router that has NAT(e.g. every router made this decade), you need to forward your ports

Jubei: what locale are you set for?

oh hay! i did it

added ma servlets.

concernedcitizen, :D

concernedcitizen: =)

grats

good job :) (not condescending)

good job :) (condescending)

just kiddin :)

reverend: English (united states)

weuweu

Jubei: then i've got nothing

anybody used ECJ? interesting little library for evolutionary computation in java

reverend: thanks anyway for trying.

that output is odd and includes things that shouldn't be in the error message at all

regardless of locale

ok i have some a bunch of BigDecimals that basically represent military time and only the decimals .15, .3 or .45 are allowed

they represent quarters of an hour

what's the smart way to find durations without using any time libraries

like, just with math

is there one?

~homework

Homework is meant to be done by YOU so that YOU learn something. Stop cheating. We didn't like doing our own, why should we bother with yours? Besides, we'd rather you failed so we have less competition. Have a nice day!

use integer types

wtf are you using BigIntegers for?

tazle: no, sorry, just phrased the question in an interesting way

i guess i apologize for that

er. ignore that

reverend: they are accurate unlike float/double

er.. i don't see any need for accuracy here

or at least, that amount of accuracy

reverend: came from a database and thats what i get

vinse: what type of duration? just hours?

vinse: define 'time libraries' Do you include java.util.Date/Calendar?

or do you need to go to other units?

Fanook: yeah i wanted to avoid that

what are they stored as in the db?

cybereal: yeah just hours, they're all in the same day

reverend: it's irrelevant, but they're oracle Numbers

i think

vinse: scale to fit decimal system or write your own base-60 arithmetic

i think you need to hurt the person who decided to store time as numbers

it's actually rows with a start and end column

vinse: you seem to have received a rathe rannoying format for you rtime

vinse: maybe you should just split on the period and call the right half minutes and the left hours and normalize the hours to minutes, add 'em all up and do whatever?

cybereal: yeah, like half one format and half another

cybereal: i'm thinking somethign like that is the nicest i can manage

vinse: if you convert .15 to .25, .3 to .5, do regular decimal arithmetic and convert back, you should the the results you want

tazle: yeah i suppose that's the answer, kinda messy

but it'll beat anything involving Calendar

vinse: not really messy at all - certainly beats writing mixed-base arithmetic

Can someone reccomend a simple syntax-highlighting notepad for me? (I'm moving from netbeans to a commandline)

new SimpleDateFormat("HH.mm").parse(poorlyFormattedTimeAsString);

strategy: Notepad++, JEdit, TextPad

thanks Fanook

vim, editeur if you're euro!

vim :)

i'm on windows ;(

vim works on windows just fine

gvim

or use Cygwin then :)

:p

strategy: forwarding ports....

hendrixski, google is your friend

hendrixski: you did read the networking tutorials?

strategy: thanks. I didn't know what to google for, now I know :-)

joed: like java networking tutorials?

I've done like basic Socket crap in college, but forgot all of it. And now i wish I hadn't. but we never had routers to worry about.

joed is there a specific one you would recommend I read?

~networking

r0bby, networking is http://java.sun.com/tutorial/networking

those

hendrixski: yep.

hendrixski: start there.

cool

I'll go through those then. Thanks :-)

hendrixski and if your computer osm

isn't public facing (not behind a router_ then you need to open the port on the router

to forward to your system

hendrixski, your router is a central train station, and packets are the trains. You need to tell your router where to send which packets

hendrixski, portforwarding is saying "If any trains come in in port 3, send them to YourTrainStation"

strategy: good explaination :P

ty r0bby

Now do multicast!

OH NOES

And ICMP!

my analogy was bad enough as it was.. :P

Then explain why UDP and filesharing is funny.

it's pretty decent, i was seeing your train come into my station :P

Go on, I'm listening.

that sounded wrong..

Yeah, you always see that train and tunnel.

choo choo.

strategy: party pooper!@

oh got that sounded wrong

i was just outside looking as the massive storm

no i wanted the explaination :P

joed, that was even wrongerererest..

strategy: Indeed.

uh.... UDP the dudes at the train stations dont tell eachother about the trains, they just send em. and the trains go really fast and sometimes get derailed.....

...i guess

joed laughs

Yeah.

:P

i am <epic voice>ANALOGY MAN</epic voice>!!

nah dude udp is more like lasers... pew! pew!

cybereal: my eye!

yeah.

lasers, perfect..

minime, stop humping the 'laser'

and sometimes you miss. (just had to add onto the whole train & tunnel thing)

MINE WAS BETTER!

everytime i see that word, i think of that line

;p

r0bby: a "" lay .. zer ""

lol!

cybereal: pfft

oh yeah austin powers was 100% innuendo :)

I was just trying to put into text the way dr. evil says it is all

and 100% not java

cybereal: hehe

has anyone here used netbeans for a plain old java editor? (without project/etc stuff) (it's a tad offtopic, but less so than the whole austin powers thing)

ummm no I think it would be a mistake to use netbeans for that

well i like the control i get with the commandline :p

actually after using netbeans for a few months I think it would be a mistake to use it for nearly anything

xD

that's fine

use a better standalone editor

I personally realy like TextMate as my standalone editor

but I used to be a vim fan

i've been using Notepad++, it's nice but i'm so spoiled by netbeans indenting for me, having templates, adding close braces and such.. etc

and there are a few java addons useful for vim I think

mmm on windows hrm

I always used gvim on windows

oh hang on

I'd use vim, emacs, etc

Keep masturbating.

you can't seriously say you like the command line on windows

i used gvim to write assembly :)

unless maybe you have ... PowerShell?

well..

pfft powershell isn't there yet :)

sure the commandline is ass, but the args to java(c) are the same

then again i looked at it for like not long :>

strategy: vim/gedit/gvim/emacs etc

jedit

i tried jedit.. couldnt find the code highlighting XD

just use a standard text editor if you need to *JUST* do a one-file thing :)

it worked out of the box for me :0

;D

on linux i use the best thing evar.... gEdit

okay

but im on windblows :(

then you got it :>

?

dont use netbeans for that :P

:p

strategy: tip: stop using javac and friends directly it's a big pain in the ass compared to a half decent ant script

ant is amazing

hm

is gEdit based on that one common editor toolkit? damn I forgot its anme, SCiTE uses it

GTK+ i think

no

I said editor toolkit

scintilla

hrm

because if it is, there are a few scintilla based editors for windows

Sigh

SciTE being one

~interesting

this is all very interesting (not really) but please take it somewhere else.

help save joed some keystrokes

nonsense this is right on topic we're talking about useful tools on windows for java development

uh-huh.

jedit, gvim, textpad

alternatives to heavy IDE's as he suggested he only wanted to use it as the editor....

~next

Another satisfied customer. Next!

oh yeah jedit is decent

joed smacks cybereal with a wet towel..

notepad++

well it's ugly but it works well

hey, im trying to write a class to update a dyndns account. I need to make 'raw http get request' (http://www.dyndns.com/developers/specs/syntax.html). how would u guys suggest i do this?

I hate the author, but like it

oh come on, r0bby, slava isn't even a participant in its development anymore

if so, just a very minor one

it's mostly community driven

wtf,

?

anyone have any ideas?

commmmodo: send it out...

GET ...

commmmodo: it's very easy to make a get request

~tell commmmodo about networking

commmmodo, networking is http://java.sun.com/tutorial/networking

commmmodo, myPrintWriter.println("GET http://dyndns.com/updatePage.jsp/ HTTP/1.1");

how about you just use a URLConnection?

joed: that wtf wasnt for me was it?

so i literally just send each line of text, 1 at a time? if thats the case a URLConnection would work

just use a URLConnection and see if it works, it should be fine

you just have to construct that url properly

the first example with the auth in the url will probably work even

yeah, i was not sure which one to do cybereal

hm now that you've pointed out how extremely trivial this is, I was actually needing to write a client for dyndns myself heheh

cybereal will just do it with a bash script and CURL

er curl

hahah, yeah, im limited to java for this one

I have a router at work of my own to keep unnecessary traffic off my subnet of machines

I'll take hw for 300 alex

it gets a new ip all the time and never shows up in DNS/WINS

so I was using dyndns to keep tabs on its internal ip (in vpn)

no r0bby

but it stopped updating randomly

weird cybereal

well not really it's a linksys product

they are quite shit

I wonder if there's a launchd compatible updater already

i'm working on a midi-over-internet program, and i want to make it so the user doesn't have to know the other person's ip... just their dyndns domain name

if r0bby is curious why it's not homework...

the only thing is that I can't have it using the internet public IP, it has to use a specific hop's ip

ah, home network cybereal?

no at home I have no issues, all apple hardware, and also a mobileMe subscriber so on my macs at work I have a magical hostname (Back To My Mac feature)

but at work I have to VPN in first

then the router's IP will be available in that private space

but I have to know what it is :)

ah

anyway its' just nice to know dyndns interface is so trivial, so if I need to write my own then it'll work fine

yeah, its so easy i can't figure it out.

another alternative is to write it into my webdav storage whenever it changes

ur a mac guy cybereal?

commmmodo: I was a linux fanatic for years but got sick of all the time sunk into just getting a half decent working machine or all the hacking to get new-ish hardware or heaven-forbid, devices, working on it.

commmmodo: but I couldn't stomach the idea of Vista

cybereal: welcome to the club