
What is default method in interface
Functional interface
lambdas
Predicate
Function
Consumer
Supplier
UnaryOperator
BiFunction
BinaryOperator
BiPredicate
BiConsumer
Stream api
forEach()
filter()
map()
collect()
distinct() method
sorted() method
limit() method
skip() method
allMatch() method
anyMatch() method
noneMatch() method
Optional
Method reference
LocalDate
LocalTime
LocalDateTime
ZonedDateTime
Instant
Duration and Period
DateTimeFormatter
List.of()
Set.of()
Map.of()
takeWhile()
dropWhile()
private methods in interface
String isBlank()
String lines()
String strip()
String stripLeading()
String stripTrailing()
String repeat(n)
Optional.isEmpty()
Files.writeString
Files.readString
Predicate.not
Collections toArray
run java files without explicitly compiling them
Switch expressions
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