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How to close a Java Swing application from the code
...ing it with System.exit is a very bad idea).
The most common culprits are java.util.Timer and a custom Thread you've created. Both should be set to daemon or must be explicitly killed.
If you want to check for all active frames, you can use Frame.getFrames(). If all Windows/Frames are disposed of,...
How to maintain a Unique List in Java?
How to create a list of unique/distinct objects (no duplicates) in Java?
7 Answers
7
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Something like 'contains any' for Java set?
... @Xipo is right. Check grepcode.com/file/repository.grepcode.com/java/root/jdk/openjdk/…
– Lluis Martinez
Feb 23 '17 at 22:06
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What is Scala's yield?
...tes a new element into the resulting sequence.
Simple example (from scala-lang)
/** Turn command line arguments to uppercase */
object Main {
def main(args: Array[String]) {
val res = for (a <- args) yield a.toUpperCase
println("Arguments: " + res.toString)
}
}
The corresponding e...
Single huge .css file vs. multiple smaller specific .css files? [closed]
...'s unlikely you'd want to do without one.
http://lesscss.org
http://sass-lang.com
If you don't want to mess around with Ruby, this LESS compiler for Mac is great:
http://incident57.com/less/
Or you could use CodeKit (by the same guys):
http://incident57.com/codekit/
WinLess is a Windows GUI f...
“Conversion to Dalvik format failed with error 1” on external JAR
...
Go to Project » Properties » Java Build Path » Libraries and remove all except the "Android X.Y" (in my case Android 1.5). click OK. Go to Project » Clean » Clean projects selected below » select your project and click OK. That should work.
It is al...
Calling remove in foreach loop in Java [duplicate]
In Java, is it legal to call remove on a collection when iterating through the collection using a foreach loop? For instance:
...
What is the main difference between Inheritance and Polymorphism?
...dule open book exam today and found myself lost. I was reading Head first Java and both definitions seemed to be exactly the same. I was just wondering what the MAIN difference was for my own piece of mind. I know there are a number of similar questions to this but, none I have seen which provide a...
Preferred Java way to ping an HTTP URL for availability
...e topic here. The question is: What is the preferred way to ping a URL in java?
6 Answers
...
What is “the inverse side of the association” in a bidirectional JPA OneToMany/ManyToOne association
... table that should be used. This way you have a unidirectional relation in Java while still having a foreign key column in the Order table. So in the Object world, the Order doesn't know about Customer while in the database world, the Customer doesn't know about Order.
– Henno ...