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onKeyPress Vs. onKeyUp and onKeyDown
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This is of critical importance if you are doing something that relies on knowing the new value after the input rather than the current value such as inline validation or auto tabbing.
Scenario:
The user types 12345 into an input element.
The user selects the text 12345.
The user types the letter...
JUnit vs TestNG [closed]
... tests being written but I have been keeping an eye on TestNG for a while now. What experiences have you all had with either JUnit 4 or TestNG, and which seems to work better for very large numbers of tests? Having flexibility in writing tests is also important to us since our functional tests cove...
Get the IP address of the machine
...ires that you choose a specific external host. Most of the time, any well-known public IP should do the trick. I like Google's public DNS server address 8.8.8.8 for this purpose, but there may be times you'd want to choose a different external host IP. Here is some code that illustrates the full app...
git replace local version with remote version
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This is the safest solution:
git stash
Now you can do whatever you want without fear of conflicts.
For instance:
git checkout origin/master
If you want to include the remote changes in the master branch you can do:
git reset --hard origin/master
This will m...
How to flatten nested objects with linq expression
...is code sample may answer the question, it lacks explanation. As it stands now, it adds no value, and stands the change of being downvoted / deleted. Please add some explanation what is does and why it is a solution for the problem of the OP.
– oɔɯǝɹ
Feb 2 ...
Implements vs extends: When to use? What's the difference?
...c String doThis(int number) {
//specfiy what must happen
}
}
now extending a class
public class SuperClass {
public int getNb() {
//specify what must happen
return 1;
}
public int getNb2() {
//specify what must happen
return 2;
}
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How to use an existing database with an Android application [duplicate]
...ption.toString());
throw mSQLException;
}
}
}
Now you can use it like:
TestAdapter mDbHelper = new TestAdapter(urContext);
mDbHelper.createDatabase();
mDbHelper.open();
Cursor testdata = mDbHelper.getTestData();
mDbHelper.close();
EDIT: Thanks to JDx
For Android 4...
How to specify font attributes for all elements on an html web page?
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I know it's been 5 years, but I'm surprised nobody has noticed until now: you should never specify just a Windows font in "font-family" (unless of course it's a webfont) - Arial,helvetica,sans-serif is more compatible.
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Rails “validates_uniqueness_of” Case Sensitivity
... If you do not have a database constraint, the insert will succeed and you now have two rows with 'foo' as the name.
See also "Concurrency and integrity" in the validates_uniqueness_of Rails documentation.
From Ruby on Rails 3rd Edition:
...despite its name, validates_uniqueness_of doesn’t ...
Using sed and grep/egrep to search and replace
...ining about 10 unions, so like:
.jpg | .png | .gif etc. This works well, now I would like to replace all strings found with .bmp
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