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The simplest way to comma-delimit a list?
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Java 8 and later
Using StringJoiner class :
StringJoiner joiner = new StringJoiner(",");
for (Item item : list) {
joiner.add(item.toString());
}
return joiner.toString();
Using Stream, and Collectors:
return list.stream().
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Unable to resolve host “”; No address associated with hostname [closed]
In my Android application for reading RSS links, I am getting this error:
17 Answers
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Eclipse compilation error: The hierarchy of the type 'Class name' is inconsistent
I have downloaded some open source software written in Java and tried to compile it using Eclipse.
I got the error: " The hierarchy of the type 'Class name' is inconsistent " in some files.
What causes these errors and how do I fix them?
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Android Studio/Intellij Idea: “Table of Contents” for a class
I have been messing around with Android Studio and so far I like most of what I have seen. One thing that has been annoying me though is this lack of "Table of Contents" for a class. I apologize for not knowing exactly what to call it. But what I am referring to is the dropdown menu in eclipse that ...
How does java do modulus calculations with negative numbers?
...modulus of negative numbers are in use - some languages use one definition and some the other.
If you want to get a negative number for negative inputs then you can use this:
int r = x % n;
if (r > 0 && x < 0)
{
r -= n;
}
Likewise if you were using a language that returns a neg...
'git status' shows changed files, but 'git diff' doesn't
I've had a look at all similar questions. However, I've double checked and something strange is definitely happening.
13 An...
How do I check if an element is really visible with JavaScript? [duplicate]
... elementFromPoint() says that element is completely overlapped by another (and you treat it as invisible) but user can see it.
– Konstantin Smolyanin
Aug 27 '13 at 20:02
1
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how to access iFrame parent page using jquery?
I have an iframe and in order to access parent element I implemented following code:
9 Answers
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Re-entrant locks in C#
...g on the same object. The recursive code effectively already has the lock and so can continue unhindered.
lock(object) {...} is shorthand for using the Monitor class. As Marc points out, Monitor allows re-entrancy, so repeated attempts to lock on an object on which the current thread already has ...
Authorize Attribute with Multiple Roles
...n let my Role be an enum rather than a string. What would a good namespace and location in the project hierarchy be for placing this custom authorize attribute?
– Simon Shine
Oct 5 '15 at 9:46
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