March 2025
Intermediate to advanced
2016 pages
69h 59m
English
This appendix summarizes miscellaneous updates and changes to the APIs since Java 17 that are relevant for the Java SE 21 Developer Professional Exam (1Z0-830). The exam objectives affected are listed below. For more information on the APIs mentioned here, we recommend consulting the Java SE 21 Platform API Documentation.
Java SE 21 Developer Professional Exam Objectives |
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[1.2] Manipulate text, including text blocks, using String and StringBuilder classes. |
New methods for searching in a string and repeatedly extending a string builder |
[10.1] Implement localization using locales and resource bundles. Parse and format messages, dates, times, and numbers, including currency and percentage values. ... |
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