大约有 9,000 项符合查询结果（耗时：0.0235秒） [XML]
When to use: Java 8+ interface default method, vs. abstract method
Java 8 allows for default implementation of methods in interfaces called Default Methods .
15 Answers
...
How to configure port for a Spring Boot application
... not work for me. I used OS environment variable mode: $ SERVER_PORT=8090 java -jar <path/to/my/jar>
– Soumya Kanti
Oct 8 '15 at 7:38
...
Java heap terminology: young, old and permanent generations?
...What the concepts of young , old and permanent generations are in the Java heap terminology, and more specifically the interactions between the three generations.
...
java get file size efficiently
While googling, I see that using java.io.File#length() can be slow.
FileChannel has a size() method that is available as well.
...
Is there a concurrent List in Java's JDK?
...
There is a concurrent list implementation in java.util.concurrent. CopyOnWriteArrayList in particular.
share
|
improve this answer
|
follow
...
How to invoke a Linux shell command from Java
I am trying to execute some Linux commands from Java using redirection (>&) and pipes (|). How can Java invoke csh or bash commands?
...
Eclipse reported “Failed to load JNI shared library” [duplicate]
...with 64-bit).
Second, the -vm argument in eclipse.ini should point to the java executable. See
http://wiki.eclipse.org/Eclipse.ini for examples.
If you're unsure of what version (64-bit or 32-bit) of Eclipse you have installed, you can determine that a few different ways. See How to find out if a...
What's Up with Logging in Java? [closed]
...) - I don't think it is sensible to decide using this point as the reason.
Java logging because you don't want to add in an extra jar.
SLF4j because it's newer than Commons Logging and provides parameterized logging:
logger.debug("The entry is {}.", entry);
//which expands effectively to
if (log...
How can I hash a password in Java?
I need to hash passwords for storage in a database. How can I do this in Java?
13 Answers
...
Is there a Null OutputStream in Java?
...r an API I'm using, but I don't actually have a need for the output. Does Java have an OutputStream equivalent to > /dev/null ?
...