Intervals Pattern in Java — A Detailed Guide
Intervals problems are mostly about ordering and overlap rules. Once sorted, many become simple linear scans.
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Heap and Priority Queue Pattern in Java — A Detailed Guide
Use heaps when you need repeated access to the smallest or largest element under updates. Java provides this via PriorityQueue.
Monotonic Queue (Deque) Pattern in Java — A Detailed Guide
Monotonic deque extends monotonic-stack thinking to moving windows. It gives fast max/min queries while the window slides.
Java 26 New Features — Complete Guide with Examples
Java 26 is the next non-LTS release in the six-month cadence. The OpenJDK JDK 26 schedule lists general availability on March 17, 2026, and the JDK 26 projec...
Monotonic Stack Pattern in Java — A Detailed Guide
Monotonic stack helps find next/previous greater or smaller elements in linear time. It avoids repeated backward or forward scans.