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How I Reduced My Oracle SQL Execution Time from 110s to 2s

🧩 The Problem Recently, I encountered a performance bottleneck while writing a SQL query: the execution time was over 110 seconds. Here’s a simplified version of the query: ⛶SELECT '...

30.03.2025 0 Read More

Emerging Trends in Java Garbage Collection

Efficient garbage collection is essential to Java application performance. What worked well in 1995, when Java was first released, won’t cope with the high demands of modern computing. To stay ahead...

30.03.2025 0 Read More

Clean your Memory: From Finalize to Cleaner

Garbage collection in Java manages memory but does not clean up non-memory resources like sockets or file handles. Resource leaks may occur without proper management, leading to performance degradatio...

30.03.2025 0 Read More

Leetcode 621. Task Scheduler

Problem You are given an array of CPU tasks, each labeled with a letter from A to Z, and a number n. Each CPU interval can be idle or allow the completion of one task. Tasks can be completed ...

30.03.2025 0 Read More

Hibernate is Not a Web Framework!

The other day, I was looking for a list of the top 10 Java web frameworks, and every blog I stumbled upon included Hibernate in the list. And that got me thinking—Hibernate isn’t a web framework! ...

30.03.2025 0 Read More

Java Streams: The Gatherers API

Java 24 introduces a new feature related to streams: the Gatherer interface. This interface (used with the Stream.gather method) allows for more complete and expressive transformation of Java streams ...

31.03.2025 0 Read More

Leetcode 2385. Amount of Time for Binary Tree to Be Infected

Problems You are given the root of a binary tree with unique values, and an integer start. At minute 0, an infection starts from the node with value start.Each minute, a node becomes infected...

31.03.2025 0 Read More

5 TestContainers Strategies That Revolutionize Java Integration Testing

As a best-selling author, I invite you to explore my books on Amazon. Don't forget to follow me on Medium and show your support. Thank you! Your support means the world! Testing is a critical part o...

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Set in Java

Set in JavaIn Java, the set is an interface that belongs to java.util package. The Set interface extends the Collection interface. An unordered collection or list in which duplicates are not allowed i...

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Map Interface

Map InterfaceThe map interface in Java is a structure that holds a set of key-value pairs where each key is unique and points to one value only. It is a component of the java.util package and is being...

31.03.2025 0 Read More

How I Reduced My Oracle SQL Execution Time from 110s to 2s

Emerging Trends in Java Garbage Collection

Clean your Memory: From Finalize to Cleaner

Leetcode 621. Task Scheduler

Hibernate is Not a Web Framework!

Java Streams: The Gatherers API

Leetcode 2385. Amount of Time for Binary Tree to Be Infected

5 TestContainers Strategies That Revolutionize Java Integration Testing

Set in Java

Map Interface

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