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Why can't variable names start with numbers?
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It is for Java, and while the original question was for C++, it also applies to many other languages, like Java. But I agree. This isn't the original reason why identifiers can't start with numbers.
– Pyrolistic...
Which annotation should I use: @IdClass or @EmbeddedId
The JPA (Java Persistence API) specification has 2 different ways to specify entity composite keys: @IdClass and @EmbeddedId .
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What Android tools and methods work best to find memory/resource leaks? [closed]
...e of the most common errors that I found developing Android Apps is the “java.lang.OutOfMemoryError: Bitmap Size Exceeds VM Budget” error. I found this error frecuently on activities using lots of bitmaps after changing orientation: the Activity is destroyed, created again and the layouts are ...
What is the Simplest Way to Reverse an ArrayList?
...nt, but also more verbose.
Alternatively, we can rewrite the above to use Java 8's stream API, which some people find more concise and legible than the above:
static <T> List<T> reverse(final List<T> list) {
final int last = list.size() - 1;
return IntStream.rangeClosed(0...
How to open existing project in Eclipse
... the next screen to decide whether or not to copy. I was looking for plain Java, not Android, and Lanaru's answer helped.
– AnneTheAgile
Apr 11 '13 at 16:54
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Objective-C Static Class Level variables
I have a class Film, each of which stores a unique ID. In C#, Java etc I can define a static int currentID and each time i set the ID i can increase the currentID and the change occurs at the class level not object level. Can this be done in Objective-C? I've found it very hard to find an answer for...
How do you make a deep copy of an object?
... A good article, which explains the deep copy through serialization : javaworld.com/article/2077578/learn-java/…
– Ad Infinitum
Aug 26 '16 at 10:58
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Begin, Rescue and Ensure in Ruby?
...s always evaluated. That's why it's called ensure. So, it is equivalent to Java's and C#'s finally.
The general flow of begin/rescue/else/ensure/end looks like this:
begin
# something which might raise an exception
rescue SomeExceptionClass => some_variable
# code that deals with some excep...
Returning value from Thread
... Here is an example of CountDownLatch: developer.android.com/reference/java/util/concurrent/…
– Seagull
Oct 27 '17 at 7:21
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Create instance of generic type whose constructor requires a parameter?
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At least you CAN do such constraints - Java always disappoints me.
– Marcel Jackwerth
Apr 9 '09 at 0:58
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