Show HN: 300k lines of Java UI code running native in browser at desktop speed

Re:Show HN: 300k lines of Java UI code running native in bro... by jeffreportmill1 on Friday April 05, 2019 @10:09AM (#19582631)

Now that hurts :-). Java has been pretty amazing for many years. Many Java desktop apps ran poorly because they were written poorly.

I used to give demos of the Swing version of this app 15 years ago, and people would try to convince me that my app was written in C, because a Java app can't run that fast. Those were weird conversations. I'm not even that clever - I just try to write simple code.

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Re:Show HN: 300k lines of Java UI code running native in bro... by ixtli on Friday April 05, 2019 @10:21AM (#19582759)

This is my experience with java > 7. The JVM with default settings is pretty excellent these days (see JetBrains IDEs: they're MASSIVE but they run just as well as any other native desktop app.) The issue as far as i see it is that the "enterprise" way of thinking that has and still does dominate the majority of development that results in java code is so bad that it starts to seem like its the language/runtime.

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Re:Show HN: 300k lines of Java UI code running native in bro... by garaetjjte on Friday April 05, 2019 @06:05PM (#19587473)

>they're MASSIVE but they run just as well as any other native desktop app

Not for me. They're starting up long, UI is laggy. In comprasion to native IDE like Qt Creator they're really slow.

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Re:Show HN: 300k lines of Java UI code running native in bro... by Yoric on Friday April 05, 2019 @10:23AM (#19582784)

I used to write apps with Swing nearly 20 years ago (before javax), and making even simple apps perform without tearing and atrocious performance was really, really hard.

Fortunately, CPUs have caught up with Java, eventually :)

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