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年10月14日

240+ Core Java Interview Questions & Answers (45 Pages PDF) Preparing for a Java Interview? Here’s a complete guide covering Core Java from Basic to Advanced, real interview questions with detailed answers to help you crack your next role confidently! 💼 ✅ 240+ Core Java Q&A…

DAIEvolutionHub's tweet image. 240+ Core Java Interview Questions &amp; Answers (45 Pages PDF)

Preparing for a Java Interview?
Here’s a complete guide covering Core Java from Basic to Advanced, real interview questions with detailed answers to help you crack your next role confidently! 💼

✅ 240+ Core Java Q&amp;A…

Dr Milan Milanović

@milan_milanovic

年10月13日

𝗖𝗼𝗻𝗰𝘂𝗿𝗿𝗲𝗻𝘁 𝗶𝘀 𝗻𝗼𝘁 𝘁𝗵𝗲 𝘀𝗮𝗺𝗲 𝗮𝘀 𝗽𝗮𝗿𝗮𝗹𝗹𝗲𝗹 Most developers use these terms interchangeably. That's a mistake. 𝗖𝗼𝗻𝗰𝘂𝗿𝗿𝗲𝗻𝗰𝘆 is about structure. You design your program so that multiple tasks can progress simultaneously without waiting for…

milan_milanovic's tweet image. 𝗖𝗼𝗻𝗰𝘂𝗿𝗿𝗲𝗻𝘁 𝗶𝘀 𝗻𝗼𝘁 𝘁𝗵𝗲 𝘀𝗮𝗺𝗲 𝗮𝘀 𝗽𝗮𝗿𝗮𝗹𝗹𝗲𝗹

Most developers use these terms interchangeably. That's a mistake.

𝗖𝗼𝗻𝗰𝘂𝗿𝗿𝗲𝗻𝗰𝘆 is about structure. You design your program so that multiple tasks can progress simultaneously without waiting for…

SumitM

@SumitM_X

年8月31日

If you see multithreading in Java JD, cover this checklist before going for an interview :

Java Interviewer-Makakmayum

@makakmayumjava

20 小时

In an actual Java interview, asking a simple question like below doesn't actually test in-depth knowledge of a candidate. So a scenario is introduced to check the same. Short Question: How can you force three threads—T1, T2, and T3—to execute in a specific sequence, one after…

Java

@java

年9月16日

Java 25 is now available! #Java25 #JDK25 #OpenJDK 👉 Download Now: social.ora.cl/6014APt6u 👉 Release notes: social.ora.cl/6011APt6X 👉 API Javadoc: social.ora.cl/6015APt6b 👉 Features: social.ora.cl/6010APt6g 👉 Inside Java on JDK 25: social.ora.cl/6012APt6i

Mario Casari

@mario_casari

年10月12日

🚀 Java: With CompletableFuture.allOf(...) you can wait on multiple async tasks without manual join handling. #Java #JavaDev

Gaurav Sharma

@GauravSharmaSDE

年10月15日

Day 38 of #100DaysOfCode (#JavaRevision) #CoreJava - concept of class level & local level variables - default values for class level, mandatory initialization for local variables - default data type of each literal (for eg. int for 4) - type issues while performing lossy…

Cristian Garcia

@cgarciae88

2024年9月24日

Great blog about Parallelism Strategies in JAX. It has lots of detailed figures and simple code. astralord.github.io/posts/explorin…

cgarciae88's tweet image. Great blog about Parallelism Strategies in JAX.
It has lots of detailed figures and simple code.

astralord.github.io/posts/explorin…

Ashutosh Maheshwari

@asmah2107

9 小时

learn - > Consistency vs. Availability (CAP) > Latency vs. Throughput > Push vs. Pull Models > Stateful vs. Stateless Services > Synchronous vs. Asynchronous Communication > Read-heavy vs. Write-heavy Optimization you'll thank yourself.

David Ko

@KoLoyYee

年10月14日

Using JFR in Clojure with :jvm-opts, and you need to upgrade from Java 21 to Java 25 is here! In the pic, you can see 14 pinned virtual threads running on Java 21, Postgres JDBC 42.2.0 After upgrading to Java 25, while keeping the Postgres JDBC 42.2.0, all pinning is GONE!

KoLoyYee's tweet image. Using JFR in Clojure with :jvm-opts, and you need to upgrade from Java 21 to Java 25 is here!

In the pic, you can see 14 pinned virtual threads running on Java 21, Postgres JDBC 42.2.0
After upgrading to Java 25, while keeping the Postgres JDBC 42.2.0, all pinning is GONE!

Tanisha Yadav

@thiside_tanisha

年10月12日

Day 10 of #100DaysOfCode 💻✨ #buildinginpublic Topic: OOPs in Java (continued) Concepts covered: ✅ Super Keyword ✅ Abstract Classes ✅ Interfaces ✅ Revisited Merge Sort

thiside_tanisha's tweet image. Day 10 of #100DaysOfCode 💻✨
#buildinginpublic
Topic: OOPs in Java (continued)

Concepts covered:
✅ Super Keyword
✅ Abstract Classes
✅ Interfaces
✅ Revisited Merge Sort

Carl Dea ⒻⓍ🕊

@carldea

2022年12月20日

Java asynchronous tips: Did you ever make multiple HTTP requests, then come to find out the host system tells you "too many concurrent connections." Use Java's Semaphore API. Below is just to ensure you are only doing 5 or fewer async calls concurrently with a list of tasks.🙂

carldea's tweet image. Java asynchronous tips: Did you ever make multiple HTTP requests, then come to find out the host system tells you "too many concurrent connections."

Use Java's Semaphore API. Below is just to ensure you are only doing 5 or fewer async calls concurrently with a list of tasks.🙂

JAVAPRO

@JAVAPROmagazin

年10月13日

Why does every new language promise to “fix” Java — but borrow half its features anyway? @vipinaiswarya breaks down the influence no one admits, but everyone builds on: garbage collection, threads, classes, VMs... You need to read this: javapro.io/2025/06/24/jav… #JVM #Frameworks

JAVAPROmagazin's tweet image. Why does every new language promise to “fix” Java — but borrow half its features anyway? @vipinaiswarya breaks down the influence no one admits, but everyone builds on: garbage collection, threads, classes, VMs...

You need to read this: javapro.io/2025/06/24/jav…

#JVM #Frameworks

杜和(とわ)

@towa_skm

年10月14日

#見てみてレンちゃん並走したときのPythonコードをJavaに翻訳して書いてみたもの巡回、判定、使う文字の選定……みたいな感じでやることを関数化したおかげで調べながらでも翻訳しやすかったただグローバル変数とか戻り値と副作用を伴う関数とか使ってるのでもうちょっと良い感じにしたかった

towa_skm's tweet image. #見てみてレンちゃん
並走したときのPythonコードをJavaに翻訳して書いてみたもの
巡回、判定、使う文字の選定……みたいな感じでやることを関数化したおかげで調べながらでも翻訳しやすかった
ただグローバル変数とか戻り値と副作用を伴う関数とか使ってるのでもうちょっと良い感じにしたかった

Juarez Junior, MSc

@juarezjunior

12 小时

A #GenAI Solution with #VirtualThreads, Structured Concurrency, JDBC Reactive Extensions, and Pipelined Database Operations rb.gy/19ad36 #AI #Java #Developers #AIVectorSearch #VirtualThreads #JavaOracleDB #Oracle #OracleAIDatabase @OracleDatabase @Oracle @juarezjunior

juarezjunior's tweet image. A #GenAI Solution with #VirtualThreads, Structured Concurrency, JDBC Reactive Extensions, and Pipelined Database Operations rb.gy/19ad36 #AI #Java #Developers #AIVectorSearch #VirtualThreads #JavaOracleDB #Oracle #OracleAIDatabase @OracleDatabase @Oracle @juarezjunior

Java

@java

2019年6月9日

Java concurrency (multi-threading) - Tutorial A very good #Reference for #Programming in #Java @vogella vogella.com/tutorials/Java…

Bhanu

@Bhanu_Codes_404

年10月11日

Day 37/365 🚀 #365DaysOfCode #100DaysOfJava Today's module, JDBC in avd Java ☕ > What is JDBC 📊 > JDBC Architecture > Types & Drivers > Basic Steps > Statement v/s Prepared Statement > Advantages & Disadvantages #DSA #Java #techTwitter #Database #BuildInPublic #DevCommunity

Bhanu_Codes_404's tweet image. Day 37/365 🚀 #365DaysOfCode
#100DaysOfJava

Today's module, JDBC in avd Java ☕

&gt; What is JDBC 📊
&gt; JDBC Architecture
&gt; Types &amp; Drivers
&gt; Basic Steps
&gt; Statement v/s Prepared Statement
&gt; Advantages &amp; Disadvantages

#DSA #Java #techTwitter #Database #BuildInPublic
#DevCommunity

freeCodeCamp.org

@freeCodeCamp

年8月18日

In computer science, multithreading lets two or more threads execute at the same time. This helps performance, which is critical in apps that perform CPU-intensive tasks. In this course, you'll learn how it works in Java + how to handle its challenges. freecodecamp.org/news/multithre…