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Unloading classes in java?
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Note also that according to java.sun.com/docs/books/jls/second_edition/html/… unloading of classes is an optimization and, depending on the JVM implementation, may or may not actually occur.
– user21037
Feb 18 '1...
Difference between Java Enumeration and Iterator
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Looking at the Java API Specification for the Iterator interface, there is an explanation of the differences between Enumeration:
Iterators differ from
enumerations in two ways:
Iterators allow the caller to remove elements from the under...
IntelliJ IDEA JDK configuration on Mac OS
...ble under IntelliJ IDEA File menu.
Direct JDK path after the recent Apple Java update is:
/System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home
In IDEA you can configure the new JSDK in File | Project Structure, select SDKs on the left, then press [+] button, then specify the above JD...
PHP equivalent of .NET/Java's toString()
...didn't mention that at all. The user asked for an answer that was like the Java toString() method, and in PHP, that's the __toString() function.
– Supuhstar
Apr 9 '13 at 1:41
2
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How do you create a dictionary in Java? [closed]
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@Cruncher It also implements Map (check the javadoc)
– arshajii
Nov 24 '12 at 17:17
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Java Singleton and Synchronization
... return InstanceHolder.instance;
}
This solution takes advantage of the Java memory model's guarantees about class initialization to ensure thread safety. Each class can only be loaded once, and it will only be loaded when it is needed. That means that the first time getInstance is called, Instan...
Access restriction: The type 'Application' is not API (restriction on required library rt.jar)
...ipse is not really right (that's what happened to me, I just wanted to use javax.smartcardio). In that case, we get this error in Eclipse.
Solution
The solution is to change the access restrictions.
Go to the properties of your Java project,
i.e. by selecting "Properties" from the context ...
What is the difference between javac and the Eclipse compiler?
Is Eclipse's Java compiler just a wrapper around the same core that the javac program is wrapped around, or is it a separate compiler altogether? If the latter, why would they reinvent the wheel?
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Get Mouse Position
I would like to simulate a natural mouse movement in Java (going from here to there pixel by pixel). To do that I need to know the starting coordinates.
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What is the difference between Set and List?
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WRONG! A Java set can be ordered, depending on the implementation; for example, a Java TreeSet is ordered. In the context of Java, the only difference between a List and a Set is that the Set contains unique items. In the context of m...