Become one of the first Java 17 developers in the world
The key to being certified early is to learn the material before the objectives are even announced. Here's a guide to the new topics based on my guesses of what will be on an exam
beginning From end Per line strip() Leading Trailing No stripIndent() Incidental Incidental Yes stripLeading() Leading n/a No stripTrailing() n/a Trailing No 15 26
@jeanneboyarsky Subclass reference 82 17 Location How reference in permits clause same file Package name optional
Permits clause optional same package in named/ unnamed module Package name optional different package in named module Package name required different package in unnamed module Not allowed
@jeanneboyarsky Picking the right bundle Looks for file Reason Zoo_fr_FR.properties Requested locale Zoo_fr.properties Requested language Zoo_en_US.properties Default locale Zoo_en.properties Default language Zoo.properties Default bundle throws exception No matches Once finds bundle, can only get values from it or parent 144
@jeanneboyarsky Module 5 - Question 8 Suppose rb is Locale_en.properties in this example. Which file will Java look at first if there is no match in that file?
@jeanneboyarsky Useful Path methods toFile() Legacy file toAbsolutePath() / or c: or … getParent() One level up getRoot() Top level normalize() Simplifies . and .. relativize(Path) Relative path from
object to parameter
(both must be absolute or relative) resolve(Path) Add parameter to path of object