Webkafeen

[Equerm]

Sammenligner du med === i PHP må vel datatypen go innholdet i den vere identisk, i Java må datatypen vere identisk uansett?

[jorgis]

Sammenligner du med === i PHP må vel datatypen go innholdet i den vere identisk, i Java må datatypen vere identisk uansett?

 

Stemmer, ellers får du vel en kompileringsfeil. == i Java sammenligner objektreferanser på ikke-primitive variabler, ikke verdier, så hvis du kopierer en streng kan du muligens få == til å virke som i PHP, men det er jo absolutt ikke optimalt.

[Lovskogen]

Lezioni apprese mentre Sviluppare un iPhone del sito

[sparks]

God lesning det Ble spurt om å lage en iPhone application her om dagen faktisk.

 

Noen som har noe god lesning på det området?

[OlafG]

Webapp, eller App Store-app?

 

http://www.bokkilden.no/SamboWeb/produkt.d...9984&rom=MP

 

Den spesialiserer seg vel mest på det siste. Har hørt den skal være bra.

[Steinmann]

<br> elements suck

Yes they do...

[Arve Systad]

Var berre veldig ORLY over den artikkelen der. Pluss at fyren som har sida har brukt U-elementet for å få underline på tekst han vil framheve. Lame.

[prebenl]

JSP er for øvrig sykt tungvindt i forhold til PHP. Hvorfor finnes/brukes det i det hele tatt? Noen som vet?

Jeg bruker JSP til daglig. Programmerte hovedsakelig i PHP noen år tidligere, og lengter absolutt ikke tilbake. Java EE er i mye større grad designet med tanke på god arkitektur, og i prosjekter av en viss størrelse er det veldig, veldig viktig. Nå kan man jo til en viss grad utøve god arkitektur i PHP, men det er forsvinnende få som faktisk gjør det, bare se på kildekoden til prosjekter som phpBB (frysninger).

 

Nå har jo JSF erstattet JSP på mange måter, men JSP er fortsatt et godt og velytende alternativ med MVC-orientert design og fine rammeverker (JPA, log4j). Det tar jevnt over mye lengre tid å sette seg inn i enn PHP, så nytten er kanskje størst på prosjekter over et par tusen kodelinjer.

 

Arve: Det er sykt mye styr med datatyper, for eksempel. (Variabel == "hallo"), altså sammenlikning av strenger, funker ikke, såvidt jeg kan se, så man må bruke egne funksjoner for den jobben. Kobling mot mySQL er et helvete i forhold til PHP, og krever flere lange kodelinjer. Feilmeldingene er som regel ubrukelige.

"==" tester jo om det er samme objekt, du er nok ute etter .equals().

 

Slik kobler jeg til databaser (bruker JPA).

	@PersistenceUnit
EntityManagerFactory emf;

 

Og tilkoblingsinfo er definert i en datasource-fil. Veldig snedig å ikke ha dette liggende i koden, siden databasebrukeren gjerne er ulik avhgenig om det er lokalt, på testserver eller i produksjon. Også greit at du kan bytte fra MySQL til et titalls andre databaser ved bare å endre et par linjer i datasource-filen.

 

<datasources>
 <local-tx-datasource>
 <jndi-name>databaseDS</jndi-name>
 <connection-url>jdbc:mysql://localhost:3306/database</connection-url>
 <driver-class>com.mysql.jdbc.Driver</driver-class>
 <user-name>bruker</user-name>
 <password>passord</password>
</datasources>

 

Feilmeldingene er jo veldig greie: melding, type og stacktrace, hva mer trenger du? Siden det er såpass systematisk skjønner jeg som regel feilen selv om den ligger i ekstern kode, vil si at det er en av de store fordelene med Java/JSP.

[loathsome]

<br> elements suck

Yes they do...

 

Har vel alle oppegående webutviklere vært klar over i et par år nå...

 

Alt til sitt bruk.

I want a "line-end" in the same paragraph:

<p>First line<br />Second line</p>

Endret 8. november 2008 av loathsome

[Steinmann]

Ganske mange ikke oppegående webutviklere ute å går da!

[loathsome]

Ikke i webkafeen

[sparks]

Jo, se på meg for eksempel. Jeg er i mot bruk av padding/margin og bruker <br> til alt.

[Haraldson]

Artikkelen du lenket til var en wake-up call for meg, Sebastian. Ikke bare kan det hende jeg kutter bruken av <br /> nå – kanskje jeg til og med slutter å bruke <font>-taggen.

 

Men å sette opp nettsteder med tabeller, det får dere meg ikke fra!

[sparks]

Skal du melde deg ut av klubben min, Haraldson? Vi har jo sverget på både tabellbruk, <font> og <br> (<br /> anbefales ikke)!

 

Dette er min favoritt URL:

http://www.eddamedia.no/eway/default.aspx?id=271&trg=Content_5594&Main_5571=5594:0:10,1731:1:0:0:::0:0&Content_5594=5577:0:10,1736:1:0:0:::0:0

Endret 8. november 2008 av sparks

[loathsome]

http://www.thelongestlistofthelongeststuffatthelongestdomainnameatlonglast.com/wearejustdoingthistobestupidnowsincethiscangoonforeverandeverandeverbutitstilllookskindane
tinthebrowsereventhoughitsabigwasteoftimeandenergyandhasnorealpointbutwehadtodoitanyways.h
ml

Endret 8. november 2008 av loathsome

[Bolson]

Jeg bruker <br> stadig vekk jeg, - når jeg skriver artikler altså.

 

@sparks: Ikke rart at eGroup må nedbemanne.

Endret 8. november 2008 av Bolson

[loathsome]

Denne er definitivt min favoritt

 

 

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rms.+Permission+to+use+the+software+is+conditional+upl+of+the+license+on+your+agreeing+to+
he+license+terms.+Installation+or+use+of+the+software+bour+agreeing+to+the+license+y+you+w
ll+be+deemed+to+be+acceptance+of+the+license+terms.+Acceptance+will+u+will+be+deemed+to+be
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es+thereof+and+remove+and+delete+the+Software+from+your+hard+disk+or+other+storage+device.
%0D%0AThis+agreement+constitutesyour+hard+disk+or+other+storage++the+entire+agreement+between+
ou+and+SAMSUNG.+This+agreement+shall+be+gover+entire+agreement+between+you+and+ned+and+con
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Sende hele eulaen via URL ..

[Lovskogen]

Jeg sier som prosjektlederen våres; *LOL*

[Haraldson]

Hvilken av dem? :O

[sparks]

Gaute