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May 29
In 1995, a small team of engineers unveiled a new programming language designed for flexibility, portability, and robustness. That language was Java. And three decades later, it remains one of the most influential technologies in the software world. Thank you for helping us celebrate #30YearsOfJava this past year. We look forward to many, many more years of pushing the boundaries of innovation and the pursuit of developer excellence. ❤️
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Apr 15
We couldn’t have #30YearsOfJava without Duke leading the way. 💪 Do you have a favorite Duke? Let us know below! 👇
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Mar 31
If you guessed Thread.destroy, you're correct! 🥳 Come back the same time next month for our FINAL #30YearsOfJava pop quiz.
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Replying to @java
Easy one for Java devs 👀 The correct answer is Thread.destroy() ✅ It was declared in the API but never actually implemented because it could leave locks unreleased and freeze the JVM. Classic example of why thread primitives were later marked unsafe. #Java #30YearsOfJava
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Mar 30
We're marching on with our #30YearsOfJava pop quiz. 💪 Today's question: Which of the following long-deprecated APIs was never implemented?
56% Thread.destroy
23% Thread.stop
12% Thread.suspend
10% Thread.resume
115 votes • Final results
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Feb 28
There's no 30th in the month of February, but that's not going to stop us from testing your #30YearsOfJava knowledge. 🙅‍♀️ Today's pop quiz question: What does JEP stand for?
6% Java Electronic Platform
63% JDK Enhancement Proposal
10% JDK Evaluation Process
22% Java Extension Protocol
286 votes • Final results
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Feb 16
Over #30YearsOfJava, Duke has traveled the globe to attend events, take in the sights, and spread the word on Java's impact on the world. 🌎 Have you spotted Duke in your area? Share your pics in the comments! 📸
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Jan 30
Are you ready for the first #30YearsOfJava pop quiz of the new year? Let's find out... Question: What year did the first @JavaOne conference take place?
43% 1996
33% 1998
7% 1992
18% 1994
183 votes • Final results
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Jan 26
Java is nothing without its rich, diverse community supporting it around the globe. ❤️ 🌎 Let us know what you love most about the Java community. #30YearsOfJava
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30 Dec 2025
'Tis the season... for another #30YearsOfJava pop quiz! 🎁 Question: What was the first data structure in the Java API that provided an association between keys and values?
26% HashTable
12% Dictionary
37% HashMap
24% Hashtable
650 votes • Final results
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30 Nov 2025
What are we thankful for? Another #30YearsOfJava pop quiz, of course! Today's question: Which Mars rover mission was powered by Java?
54% Curiosity
15% Spirit
9% Ingenuity
23% Opportunity
212 votes • Final results
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19 Nov 2025
What's better than Java? Java swag! 😎 We know you've accumulated tons of Java swag over #30YearsOfJava, and it's time to show it off. Drop your favorites down below. 👇
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31 Oct 2025
Congrats to everyone who guessed New York Java SIG—you're correct! 🎉 Check back next month for our next #30YearsOfJava quiz.
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30 Oct 2025
We have a sweet treat for you—another #30YearsOfJava pop quiz! 🎃 Question: What was the first Java User Group (JUG)?
24% Brown JUG
15% Westeros JUG
36% New York Java SIG
25% London Java Community
146 votes • Final results
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20 Oct 2025
There are an endless number of words to describe Java: Innovative, exciting, and awesome are just a few that come to mind. See what the community had to say and drop your thoughts below. #30YearsOfJava
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30 Sep 2025
Pop quiz time! ✍️ Today's #30YearsOfJava question: What is the Java class file "magic number" in hex?
20% 0xDEADBEEF
14% 0xF005BA11
59% 0xCAFEBABE
7% 0xACED1337
286 votes • Final results
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10,617
31 Aug 2025
Thanks to everyone who voted! The correct answer is... 15! The majority of you got it right. Gold star for you all. ⭐ #30YearsOfJava
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30 Aug 2025
We continue to test your knowledge of #30YearsOfJava with today's pop quiz. Question: How many Java releases have been delivered since 2018?
30% 10
12% 200
20% 42
37% 15
401 votes • Final results
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20 Aug 2025
From exciting new features to community events, and everything in between—there’s plenty to love about Java! See what community members had to say about why they love Java and share your thoughts below. #30YearsOfJava
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