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Java: Difference between PrintStream and PrintWriter
...ns between PrintStream and PrintWriter are that a PrintWriter cannot write raw bytes and the two classes wrap different types of destinations.
– Ted Hopp
May 9 '13 at 3:47
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How do I encode/decode HTML entities in Ruby?
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To decode characters in Rails use:
<%= raw '<html>' %>
So,
<%= raw '&lt;br&gt;' %>
would output
<br>
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Create an Android Jar library for distribution
...ormal Java project in Eclipse, add the android.jar to the build path, then select Export - Java - Jar File.
– Jeff Gilfelt
Feb 16 '11 at 10:47
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Best C++ Code Formatter/Beautifier
...grated with Visual Studio, Emacs, Vim (and others) and can format just the selected lines (or with git/svn to format some diff).
It can be configured with a variety of options listed here.
When using config files (named .clang-format) styles can be per directory - the closest such file in parent d...
Storing a Map using JPA
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@ElementCollection(fetch = FetchType.LAZY)
@CollectionTable(name = "raw_events_custom", joinColumns = @JoinColumn(name = "raw_event_id"))
@MapKeyColumn(name = "field_key", length = 50)
@Column(name = "field_val", length = 100)
@BatchSize(size = 20)
private Map<String, String>...
Execute SQLite script
...return to my shell script, I think this works well:
$ sqlite3 example.db 'SELECT * FROM some_table;'
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Vagrant ssh authentication failure
... vagrant@localhost -p 2222
then copy the public key content from https://raw.githubusercontent.com/mitchellh/vagrant/master/keys/vagrant.pub to the authorised_keys file with the following command
echo "ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEA6NF8iallvQVp22WDkTkyrtvp9eWW6A8YVr+kz4TjGYe7gHzIw+niNltGEFH...
How to make unicode string with python3
..., \u000A, etc. And also emojis that encoded with 16 bytes.
example = 'raw vegan chocolate cocoa pie w chocolate &amp; vanilla cream\\uD83D\\uDE0D\\uD83D\\uDE0D\\u2764\\uFE0F Present Moment Caf\\u00E8 in St.Augustine\\u2764\\uFE0F\\u2764\\uFE0F '
import codecs
new_str = codecs.unicode_escape...
How to use a variable to specify column name in ggplot
... on the value if the name is not found. This is actually what happens with select, but not with group_by ... It's possible to hack around it but not obvious. If it's important to you I think it would deserve its own question.
– Moody_Mudskipper
Aug 20 '19 at 23...
How to avoid “cannot load such file — utils/popen” from homebrew on OSX
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Uninstall homebrew:
ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/uninstall)"
Then reinstall
ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
Warning: This script will remove: /Library/Caches/Hom...