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7.1 Records, Canonical Constructors & Immutability
Topic Summary
Eliminate boilerplate getters, equals, hashCode, and toString with Java records and compact invariant validation.
What You Will Learn
• Declare transparent data carrier records in 1 line.
• Use compact constructors for validation without redundant assignments.
• Understand record inheritance rules (cannot extend classes, can implement interfaces).
Included in Java Intermediate: Collections, Streams & Modern OOP • Lifetime access for ₹99