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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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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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“Content is not allowed in prolog” when parsing perfectly valid XML on GAE
...ing bug for the last 48 hours, so I thought I'd finally throw in the towel and try asking here before I throw my laptop out the window.
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Uninstall Node.JS using Linux command line?
...js.pc share/man/man1/node.1
Now the only thing I don't know about is npm and what it has installed. If you install npm again into a custom path that starts off empty, then you can see what it adds and then you will be able to make a list for npm similar to the above list I made for node.
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How to permanently add a private key with ssh-add on Ubuntu? [closed]
...ate one. It does not need root rights, so simply:
nano ~/.ssh/config
...and enter the lines above as per your requirements.
For this to work the file needs to have chmod 600. You can use the command chmod 600 ~/.ssh/config.
If you want all users on the computer to use the key put these lines in...
doesn't inherit the font from
I have input and label fields:
4 Answers
4
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how to emulate “insert ignore” and “on duplicate key update” (sql merge) with postgresql?
...m a subquery, you're best of splitting it into two queries, one for INSERT and one for UPDATE (as an appropriate join/subselect of course - no need to write your main filter twice)
share
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improve t...
How can I clear event subscriptions in C#?
...outside the class, you can't do this - events basically expose "subscribe" and "unsubscribe" and that's it.
It's worth being aware of what field-like events are actually doing - they're creating a variable and an event at the same time. Within the class, you end up referencing the variable. From ou...