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RequestDispatcher.forward() vs HttpServletResponse.sendRedirect()
...directed address. It’s not transparent.
sendRedirect is slower because one extra round trip is required, because a completely new request is created and the old request object is lost. Two browser request are required.
But in sendRedirect, if we want to use the same data for a new resource we ...
How to make my layout able to scroll down?
...</ScrollView>
As David Hedlund said, ScrollView can contain just one item... so if you had something like this:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_...
Android Google Maps v2 - set zoom level for myLocation
...not zoom in, but if you modify the onLocationChanged method to be like the one below, you can choose whatever zoom level you like:
@Override
public void onLocationChanged(Location location)
{
if( mListener != null )
{
mListener.onLocationChanged( location );
//Move the cam...
Python try…except comma vs 'as' in except
... 2.6, there is multicatch which allows you to catch multiple exceptions in one except block. In such a situation, it's more expressive and pythonic to say
except (exception1, exception2) as e
rather than to say
except (exception1, exception2), e
which would still work
...
How to Define Callbacks in Android?
...ss that takes the callback
class Worker {
MyCallback callback;
void onEvent() {
callback.callbackCall();
}
}
// Option 1:
class Callback implements MyCallback {
void callbackCall() {
// callback code goes here
}
}
worker.callback = new Callback();
// Option 2:
worker...
How do I connect to a MySQL Database in Python?
... and fast to setup then use. It makes my day for small projects or stand alone apps, Where using big tools like SQLAlchemy or Django is overkill :
import peewee
from peewee import *
db = MySQLDatabase('jonhydb', user='john', passwd='megajonhy')
class Book(peewee.Model):
author = peewee.CharFi...
How to apply unmerged upstream pull requests from other forks into my fork?
...
I was not able to see the pending pull requests mentioned in step 4. Instead, I selected the branch that corresponded to the pull request made by OtherFork, from the right hand 'compare' dropdown. I then selected the left side as the base fork as described above as was able t...
Color picker utility (color pipette) in Ubuntu [closed]
... more features than gcolor2 but is still extremely simple to use: click on one of the hex swatches, move your mouse around the screen over the colours you want to pick, then press the Space bar to add to your swatch list.
If that doesn't work, another way is to click-and-drag from the centre of the...
What are namespaces?
...yProject\output();
\RSSLibrary\output();
Or we can declare that we're in one of the namespaces and then we can just call that namespace's output():
namespace MyProject;
output(); # Output HTML page
\RSSLibrary\output();
No Namespaces?
If we didn't have namespaces we'd have to (potentially) ch...
What's the difference between nohup and ampersand
... answered Mar 24 '13 at 5:04
nemonemo
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