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How should I validate an e-mail address?
... ")+"
);
You can use function
private boolean checkEmail(String email) {
return EMAIL_ADDRESS_PATTERN.matcher(email).matches();
}
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What does the “assert” keyword do? [duplicate]
...y simple to understand:
When you have a similar situation like this:
String strA = null;
String strB = null;
if (2 > 1){
strA = "Hello World";
}
strB = strA.toLowerCase();
You might receive warning (displaying yellow line on strB = strA.toLowerCase(); ) that strA...
How do I use Django templates without the rest of Django?
...from django.conf import settings
settings.configure(DEBUG=False)
template_string = "Hello {{ name }}"
template = Template(template_string, engine=Engine())
context = Context({"name": "world"})
output = template.render(context) #"hello world"
...
Android basics: running code in the UI thread
...nLooper());
private class TextViewUpdater implements Runnable{
private String txt;
@Override
public void run() {
searchResultTextView.setText(txt);
}
public void setText(String txt){
this.txt = txt;
}
}
It can be used from anywhere like this:
textViewUpdat...
What are detached, persistent and transient objects in hibernate?
...ot associated with a Session, has no representation in the database and no identifier value is considered transient by Hibernate:
Person person = new Person();
person.setName("Foobar");
// person is in a transient state
A persistent instance has a representation in the database, an identifier va...
Bootstrap Carousel : Remove auto slide
I'm using Bootstrap Carousel. All I want is that the slider will only slide when a navigation or a pagination is clicked.
I've tried removing
...
Use didSelectRowAtIndexPath or prepareForSegue method for UITableView?
...s? I'll have to pass a couple objects to the detail view. But do I use didSelectRowAtIndex or -(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender ?
...
Facebook App: localhost no longer works as app domain
...
The protocol seems to keep changing, and the accepted answer didn't work for me today. In case it helps other searchers, this is what did work for me:
All changes were made on the Settings page under the Basic tab
1.) In the center under the first box of options, click "+ Add Plat...
WARNING: UNPROTECTED PRIVATE KEY FILE! when trying to SSH into Amazon EC2 Instance
...C2 documentation we have "If you're using OpenSSH (or any reasonably paranoid SSH client) then you'll probably need to set the permissions of this file so that it's only readable by you." The Panda documentation you link to links to Amazon's documentation but really doesn't convey how important it ...
How to change a nullable column to not nullable in a Rails migration?
...lse, <put a default value here> )
# change_column(:users, :admin, :string, :default => "")
end
Changing a column with NULL values in it to not allow NULL will cause problems. This is exactly the type of code that will work fine in your development setup and then crash when you try to d...