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Task 1 - Basic CRUD for Library Management System using pure Java 21 + JDBC (MySQL). No Spring, no Hibernate, no Maven. DriverManager, PreparedStatement, manual ResultSet mapping. 3 entities (Author, Member, Book), 9 DAO methods, enums, service layer with step comments. Includes library.sql + library.mwb.
Hexaware Java + React FSD training journal (2026-09-21 to 2026-11-12) - all 112 trainer commits mirrored across 10 branches: PL/SQL, Core Java 21, Maven/JUnit, Spring Core, Hibernate/JPA, Spring Boot REST + Security, JavaScript/React, and the HelpDesk full-stack app. Training complete!