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Java for Testing
Java for Testing
Tutorials, guides, and interview prep for QA automation engineers.
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Beginner
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Intermediate
JDBC and Database Connectivity in Java: Steps & Examples
Learn JDBC in Java — what it is, what a JDBC driver does, and the standard steps to connect a Java application to a database, with a full code example.
Java Collections: Set, HashMap, ArrayList vs LinkedList & Thread-Safe Maps
Learn Java collections — the Set interface, HashMap internals, ArrayList vs LinkedList, synchronized maps vs ConcurrentHashMap, and forEach vs Iterator.