大约有 7,479 项符合查询结果（耗时：0.0264秒） [XML]
Grab a segment of an array in Java without creating a new array on heap
I'm looking for a method in Java that will return a segment of an array. An example would be to get the byte array containing the 4th and 5th bytes of a byte array. I don't want to have to create a new byte array in the heap memory just to do that. Right now I have the following code:
...
What causes “Unable to access jarfile” error?
...
I had encountered this issue when I had run my Jar file as
java -jar TestJar
instead of
java -jar TestJar.jar
Missing the extension .jar also causes this issue.
share
|
improve t...
How to set a timer in android
...ask (a function that I create which does not change the UI)?
Use this the Java way:
http://docs.oracle.com/javase/1.5.0/docs/api/java/util/Timer.html
...
How to fluently build JSON in Java?
...
This is still the cleaner option. It's ridiculous that Java devs still have to pause to figure the best option for JSON parse/build in 2020.
– mtyson
Dec 23 '19 at 20:11
...
What are all the escape characters?
I know some of the escape characters in Java, e.g.
4 Answers
4
...
How to get current moment in ISO 8601 format with date, hour, and minute?
...There are two different packages for 'DateFormat', remember to use 'import java.text.DateFormat'
– oabarca
Jun 24 '14 at 19:12
3
...
Weird Integer boxing in Java
...
This range can be extended using java.lang.Integer.IntegerCache.high property. Interesting that Long doesn't have that option.
– Aleksandr Kravets
Aug 31 '15 at 10:29
...
What is a 'SAM type' in Java?
Reading up on the Java-8 spec, I keep seeing references to 'SAM types'. I haven't been able to find a clear explanation of what this is.
...
Can a constructor in Java be private?
...
So...former chief Java architect at Google Joshua Bloch advocates static factory methods that use private constructors (Effective Java 2nd edition)...considering his expertise with the language and his creation of the Java Collections Framewor...
Retrieve column names from java.sql.ResultSet
With java.sql.ResultSet is there a way to get a column's name as a String by using the column's index? I had a look through the API doc but I can't find anything.
...