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Austin, TXoracle.com/javaJoined March 2010
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The Java SE Subscription Enterprise Performance Pack is now available for download under the Java SE OTN License—making it easy to develop, test, prototype, and demonstrate your applications for free. Learn more: social.ora.cl/6013OXyID
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@java
Preview Features have been essential to the delivery of #Java for the past 5 years, and #Java20 is no exception. Check out the latest episode of the Inside Java Podcast for an in-depth conversation about the importance of Preview Features. social.ora.cl/6010OHkg6
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Nicolai Parlog 🇺🇦🕊️
@nipafx
How do you name unused variables? If even just having to make that choice annoys you (it's not just me, right?), read on for how #JavaNext will fix that and make pattern matching (how's that related?!) more maintainable in the process. 🧵
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  • "unused" or similar
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Java Retweeted
Nicolai Parlog 🇺🇦🕊️
@nipafx
Q: How do you get/add/remove the first/last entry of a list, deque, sorted set/map, or any other collection with encounter order? How do you iterate in reverse order? A (on #Java20): Inconveniently 😒 to not at all 🙅🏾‍♂️. A (on #Java21): Easy! 😁 Let me show you how! 🧵
The following Java source code: // getting first/last element on... // ... `List`: var first = list.get(0); 😐 var last = list.get(list.size()-1); // 😬 // ... `LinkedHashSet`: var first = set.iterator().next(); first = set.stream().findFirst(); var last = 🤷
The following Java source code: // getting first/last element on... // ... `List`: var first = list.get(0); 😐 var last = list.get(list.size()-1); // 😬 // ... `LinkedHashSet`: var first = set.iterator().next(); first = set.stream().findFirst(); var last = 🤷 // iterating in reverse order over ... // ... `List`: for (var it = list.listIterator(list.size()); it.hasPrevious();) { var e = it.previous(); // use `e` } // ... `Deque`: for (var it = deque.descendingIterator(); it.hasNext();) { var e = it.next(); // use `e` } // ... `NavigableSet`: for (var e : navSet.descendingSet()) { // use `e` }
The following Java source code: // streaming in reverse order over ... // ... `List`: 🤷 // ... `Deque`: 🤷 // ... `NavigableSet`: navSet.descendingSet().stream()
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Nicolai Parlog 🇺🇦🕊️
@nipafx
Happy #Java20 release day, everybody! Get the freshest JDK right here: jdk.java.net/20/ Let's have a quick look at how the preview features progressed this release (after we looked over all the small and not-so-small additions to 20 last week 👇🏾). 🧵
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Nicolai Parlog 🇺🇦🕊️
@nipafx
The list of big features #Java20 finalizes is rather short: . (That was it already. 🥱) All 20 improves is security, performance, tools, regex, Unicode, and all previews. Maybe worth a closer look after all? ("This thread should've been a blog post." nipafx.dev/java-20-guide/)
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