Java's SimpleDateFormat is a Disaster Waiting to Happen

[@nunya1120]

I would love to see a video where you explain threads, web applications etc in Java. I am on my second year in my Java courses and I haven't even heard any of these terms in class. You seem very knowledgeable and I would enjoy learning about it.

[@ndk8111]

7:27 thank you. I can not stress the importance of always offering a solution to an identified problem. Thanks.

[@myselfyuvi]

Thanks John for enlightening video. I never knew SDF can blow up line that. Tomorrow I need to fix some shit in our application! 😂✌️

[@jalowery1246]

This can be so frustrating!

[@cthoadmin7458]

FastDateFormat wierdness: Ran the example given. Gives the expected output: 10 x "Successfully parsedThu Oct 17 12:34:51 AEST 2024" Every now and again though (if I hit it hard enough) I get: "Successfully parsedThu Oct 17 12:34:51 GMT+10:00 2024" Which is the same, but how come sometimes it picks up the correct named timezone, and sometimes not?

[@jack.hodkinson]

This is absolutely wild

[@pascalclement4461]

I realy like your videos. Short and very clear. hmm is the naming convention of dataFormat not DATE_FORMAT?

[@brucehartweg4946]

Ok. I’m an experienced developer, so I know what and why this happening. But blaming SDF is an oversimplified and misleading to newer folks. There are many many classes that are not thread safe. Any time you are doing things in multi-threaded manor you should *never* used shared instances of things unless you absolutely *know* for certain they are thread safe.

[@Exiide89]

SDF is a nightmare.

[@javalady]

thanks for good hint

[@vaishnavi_art]

Can I store yyyy-mm-dd formate in Date date; veriable and not in string

[@anthonyanyama]

Could this be happening only on particular date patterns? I guess I can carry out a test and find out

[@NLxDoDge]

@Coding with John can this not also be prevented by using good Unit Tests instead?

[@paulolvilar1]

Thanks :)

[@vijaykumarreddyt3287]

Great tutorial

[@Chupacabras222]

Another way would be simply to synchronize on that object.

[@MrSajjadgul]

But that would be slow and kills the parallelism

[@abdellahlabied828]

I can't find parse method

[@CodingWithJohn]

You should be able to find it on the SimpleDateFormat object we create here - dateFormat.parse()

[@ndk8111]

1:17 oops. Caught John’s bad manners. Unsubscribing. Ok. Ok. Will stay but last warning. 😉