Thinking In Java 4th Edition -

It might be daunting. Newer resources may be better for learning modern syntax first.

Bruce Eckel later released "On Java 8" to address the significant changes in the language (like functional programming), though the 4th Edition remains a reference for Android developers using older Java versions. Thinking In Java 4th Edition

Readers frequently praise the Collections chapter as superb. The coverage of Concurrency and Generics is also noted for going deep beneath the surface. It might be daunting