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Init method in Spring Controller (annotation version)
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If you need to use the User from SecurityContextHolder, at PostConstruct moment it's not initialized. It's need to be used like a stateless method. (getUser()... { return Security...user(); }
– Joao Polo
Nov 24 '15...
Ruby on Rails: How do I add a not null constraint to an existing column using a migration?
...onstraint, then rollback the migration, it will REMOVE the null constraint from any field that already had it.
– jpw
Jan 16 '19 at 18:50
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s...
Static fields on a null reference in Java
... are not associated with an instance.
The ability to access static fields from an instance reference (as you are doing) is merely a syntactic sugar and has no additional meaning.
Your code compiles to
main.getNull();
Main.value
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POST request send json data java HttpUrlConnection
...putStream())));
String output;
System.out.println("Output from Server .... \n");
while ((output = br.readLine()) != null) {
System.out.println(output);
}
conn.disconnect();
} catch (MalformedURLException e) {
e.printStackTrace();
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Is object empty? [duplicate]
...(you don't need to import all the lodash, you can now import just a method from it, it was divided to multiple micro-packages in npm).
– 108adams
Apr 15 '16 at 6:43
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How do I increase the RAM and set up host-only networking in Vagrant?
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You can obtain the properties that you want to change from the documents for VirtualBox command-line options:
http://www.virtualbox.org/manual/ch08.html#vboxmanage-modifyvm
The vagrant documentation has the section on how to change IP address:
Vagrant::Config.run do |config...
Where should virtualenvs be created?
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From my personal experience, I would recommend to organize all virtual environments in one single directory. Unless someone has extremely sharp memory and can remember files/folders scattered across file system.
Not a big fan...
Open a buffer as a vertical split in VIM
...e editing a file in VIM and then you need to open an existing buffer (e.g. from your buffer list: :buffers ) how can you open it in a vertical split?
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Insert a line break in mailto body
...ith an other platform, my code is working perfectly! it's definitly coming from the solution I use. All those hours lost for nothing... sorry guys, and again thank you for your help
– Marion
Apr 3 '14 at 15:33
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How to detect the swipe left or Right in Android?
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I like the code from @user2999943. But just some minor changes for my own purposes.
@Override
public boolean onTouchEvent(MotionEvent event)
{
switch(event.getAction())
{
case MotionEvent.ACTION_DOWN:
x1 = event...