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  • Satyajit Rakshit thinks this is interesting:

API

From

Cover of OCA Java SE 8 Programmer I Study Guide (Exam 1Z0-808), 3rd Edition

Note

java.util
java.util.concurrent
java.util.concurrent.atomic
java.util.concurrent.locks
java.util.function
java.util.jar
java.util.logging
java.util.prefs
java.util.regex
java.util.spi
java.util.stream
java.util.zip

go to https://docs.oracle.com/javase/8/docs/api/ for more details