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My docker container has no internet
...n docker daemon.json
Edit /etc/docker/daemon.json
{
"dns": ["10.1.2.3", "8.8.8.8"]
}
Restart the docker daemon for those changes to take effect:
sudo systemctl restart docker
Now when you run/start a container, docker will populate /etc/resolv.conf with the values from daemon.json.
2. Fi...
How do I call ::std::make_shared on a class with only protected or private constructors?
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edited May 23 '17 at 12:10
Community♦
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answered Nov 16 '11 at 5:53
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What does the ^ operator do in Java?
... (binary)
5 = 101
6 = 110
------------------ xor
3 = 011
This the truth table for bitwise (JLS 15.22.1) and logical (JLS 15.22.2) xor:
^ | 0 1 ^ | F T
--+----- --+-----
0 | 0 1 F | F T
1 | 1 0 T | T F
More simply, you can also think of xor as "t...
Changing Java Date one hour back
...k = cal.getTime();
java.util.Date
new Date(System.currentTimeMillis() - 3600 * 1000);
org.joda.time.LocalDateTime
new LocalDateTime().minusHours(1)
Java 8: java.time.LocalDateTime
LocalDateTime.now().minusHours(1)
Java 8 java.time.Instant
// always in UTC if not timezone set
Instant.now(...
Convert Newtonsoft.Json.Linq.JArray to a list of specific object type
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edited Jan 30 '15 at 20:19
James Newton-King
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How do Google+ +1 widgets break out of their iframe?
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answered Sep 5 '11 at 23:03
rookrook
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Adding a column to an existing table in a Rails migration
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edited Oct 24 '19 at 10:35
ARK
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answered Jan 29 '11 at 3:10
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Difference between StringBuilder and StringBuffer
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33 Answers
33
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What's the nearest substitute for a function pointer in Java?
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edited Dec 31 '15 at 5:02
Mateen Ulhaq
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How to duplicate a whole line in Vim?
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edited Jul 10 '19 at 22:30
iono
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answered Sep 16...