clover solution, i don't remember we can access to a char by charAt(), i always used it but i don't know how i forgot that. thanks for a new short way to solution.

Nice ,short, and clean code congratulation !!

long one-liner which is not that easy to read. this good too

looks good

I wrote my code like this one and it didn't work..
Then I clicked see answers, I saw this one, went back to the Test, submitted again without changing anything and it worked.
Honestly, wtf.

nice work! But the question wanted to return NEW array

Yes, that way the original array that was passed in as a parameter is not modified.

what is the equation doing in the Math.min brackets? I don't understand how the 0.05 and 0.25 work.

O(n)

Can be done with BigDecimal rather than with String parsing

this is a very cool solution and still very readable in my opinion, didn't think of using it

Nice Code !

Explain why I have an error

Exception in thread "main" java.lang.NumberFormatException: For input string: "8,6667"
at java.base/jdk.internal.math.FloatingDecimal.readJavaFormatString(FloatingDecimal.java:2054)
at java.base/jdk.internal.math.FloatingDecimal.parseDouble(FloatingDecimal.java:110)
at java.base/java.lang.Double.parseDouble(Double.java:735)
at Main2.barTriang(Main2.java:14)
at Main2.main(Main2.java:21)

Potential Unicode issue: if the string contains Unicode surrogate pairs (i.e. supplementary characters, like emoji and rare characters), this approach reverses those and produces a string with invalid/unintended characters. Solutions with StringBuilder#reverse() preserve the surrogate pair ordering, which is likely what you want in code.