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What are markers in Java Logging frameworks and what is a reason to use them?
...tps%3a%2f%2fstackoverflow.com%2fquestions%2f16813032%2fwhat-are-markers-in-java-logging-frameworks-and-what-is-a-reason-to-use-them%23new-answer', 'question_page');
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How to update a value, given a key in a hashmap?
Suppose we have a HashMap<String, Integer> in Java.
17 Answers
17
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Maximum number of threads per process in Linux?
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Thank you, it finally allowed me to break through the 32k Java thread count.
– berezovskyi
Mar 11 '16 at 23:12
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Disabling contextual LOB creation as createClob() method threw error
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Which java version did you try this with? Intellij is unable to find this property.
– comiventor
Dec 6 '17 at 8:53
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JRuby on Rails vs. Ruby on Rails, what's difference?
...s Ruby is a C implementation.
Key features to note are:
JRuby runs on Java VM's and it's either compiled or interpreted down to Java byte code.
JRuby can integrate with Java code. If you have Java class libraries (.jar's), you can reference and use them from within Ruby code with JRuby. In the ...
Develop Android app using C#
...Mono and dot42 are licensed products.
Personally, I would recommend using Java with the IntelliJ IDEA dev environment. I say this for 3 reasons:
There is so much Java code out there for Android already; do yourself a favour and don't re-invent the wheel.
IDEA is similar enough to Visual Studio as...
Sort objects in ArrayList by date?
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Since Java 8 the List interface provides the sort method. Combined with lambda expression the easiest solution would be
// sort DateTime typed list
list.sort((d1,d2) -> d1.compareTo(d2));
// or an object which has an DateTime a...
Last iteration of enhanced for loop in java
...: ints) {
sb.append(delim).append(i);
delim = ",";
}
Update: For Java 8, you now have Collectors
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slf4j: how to log formatted message, object array, exception
...ew Exception("something went wrong")});
will yield
one two three: a b c
java.lang.Exception: something went wrong
at Example.main(Example.java:13)
at java.lang.reflect.Method.invoke(Method.java:597)
at ...
The exact output will depend on the underlying framework (e.g. logback, log4j...
Light weight alternative to Hibernate? [closed]
I have a single user java program that I would like to have store data in a light weight database such as Derby or Sqlite. I would like to use a data abstraction layer in my program. Hibernate appears to require a lot of configuration and is overkill for what I need. What are light weight alternativ...