This question already has answers here:
What is the ellipsis (...) for in this method signature?
(5 answers)
What do 3 dots next to a parameter type mean in Java?
(9 answers)
Closed 5 years ago.
I'm looking at the Files class in java 7, and I see this method
copy(InputStream, Path, CopyOptions...)
How do I read "CopyOptions...". What's the ... mean?
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Simple way to repeat a string
(32 answers)
Print character multiple times [duplicate]
(5 answers)
Closed 2 years ago.
How can I print this in java?
###############
I know in python it is like this:
print("#" * 15)
This question already has answers here:
What are XML namespaces for?
(10 answers)
What does "xmlns" in XML mean?
(5 answers)
Closed 5 years ago.
This Java tutorial by Oracle says that
The xmlns:fx attribute is always required and specifies the fx namespace.
but what exactly is the fx namespace?
And what values qualify for this attribute?
This question already has answers here:
What is the "String args[]" parameter in the main method?
(18 answers)
Closed 6 years ago.
What information is actually passed into the program if I pass a file using the command line?
Would this be the file name, or would it be the contents of the file?
In Java, unlike in C/C++, the file name is not the first argument.
Only the arguments are in args[].
This question already has answers here:
:: (double colon) operator in Java 8
(17 answers)
Closed 7 years ago.
What does "::" do in this code?
Files.walk(Paths.get("res")).forEach(System.out::println);
I know that we use ':' for an enhanced for loop but I never saw 2 of them together
Double colon :: is called Method Reference.
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Java String.split() sometimes giving blank strings
(3 answers)
Why in Java 8 split sometimes removes empty strings at start of result array?
(3 answers)
Closed 8 years ago.
I have a string like "2020". When I split it with split(""). Then i checked its length. It is giving me 5 . But it should give 4. What is the reason