GRGanesh Rama Hegdeinkotlinflow.hashnode.dev·Jan 27 · 2 min readChapter 13 : UseCase10 -distinctUntilChangedIn real streams, values often repeat. But sometimes, we only care when the value actually changes. distinctUntilChanged() ensures that the same consecutive value is not emitted twice. It filters out d00
JNJayRam Naiinjramnai.hashnode.dev·May 11, 2025 · 1 min readFixing Non-Incrementing Primary Key in PostgreSQLProblem While inserting data into a PostgreSQL table, I got this error: ERROR: Key (“userId“)=(1234) already exists.duplicate key value violates unique constraint “User_pkey“ SQL state: 23505 Details: Key (“userId“)=(1234) already exists. The userId...00
MMKhalidinmkbytes.com·Dec 17, 2023 · 3 min readEfficient File Management: How to Find and Remove Duplicate Files Using PythonIntroduction Duplicate files can clutter your storage space and make it difficult to manage your data efficiently. Whether you want to free up disk space or simply keep your files organized, finding and removing duplicate files is a useful task. In t...00
HHanineunhanlee.hashnode.dev·Jun 7, 2022 · 2 min readwhat is fastest removing deplicates from ArrayList in Java?The Best Winner private static ArrayList<String> rmDupliArrayList(ArrayList<String> input) { ArrayList<String> resultList = new ArrayList<String>(); for (String temp : input) { if (!resultList.contains(temp)) { ...00
