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What is the way to quick-switch between tabs in Xcode 4
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I think everybody should assume that people are generally used to browser ~ and use CTR + TAB / CTR + SHIFT + TAB to change tabs.
– Paul Brewczynski
Aug 19 '13 at 14:27
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Getting a File's MD5 Checksum in Java
I am looking to use Java to get the MD5 checksum of a file. I was really surprised but I haven't been able to find anything that shows how to get the MD5 checksum of a file.
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How to check if a service is running on Android?
...equires starting the service and I think the best flexible solution should allow you to check whether a service is running without starting it.
– Tom
Apr 4 '12 at 16:23
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Limit ggplot2 axes without removing data (outside limits): zoom
... be thrown away, as they are constraining the data. For a true zoom (keep all the data), you need to set the limits inside of the Cartesian coordinate system (or other coordinate systems https://ggplot2.tidyverse.org/reference/#section-coordinate-systems). For more see: http://docs.ggplot2.org/cur...
Read password from stdin
...s is what I just cooked up (wouldn't be surprised if you find similar code all over the place, though):
import getpass
def login():
user = input("Username [%s]: " % getpass.getuser())
if not user:
user = getpass.getuser()
pprompt = lambda: (getpass.getpass(), getpass.getpass('...
What is the difference between a database and a data warehouse?
...mized for read operations.
High performance for analytical queries.
Is usually a Database.
It's important to note as well that Data Warehouses could be sourced from zero to many databases.
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Remove multiple keys from Map in efficient way?
...s you want to remove, you can use the keySet method and map.keySet().removeAll(keySet);.
keySet returns a Set view of the keys contained in this map. The set is backed by the map, so changes to the map are reflected in the set, and vice-versa.
Contrived example:
Map<String, String> map ...
How to save and load cookies using Python + Selenium WebDriver
How can I save all cookies in Python's Selenium WebDriver to a txt-file, then load them later? The documentation doesn't say much of anything about the getCookies function.
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In what order are Panels the most efficient in terms of render time and performance?
...ates relative to the Canvas area.
The Canvas has the best performance of all the panels for the arrange pass since each item is statically assigned a location. The measure pass also has excellent performance since there is no concept of stretching in this panel; each child simply uses its native ...
Create a custom View by inflating a layout?
...reate a Compound Control. You'll create a subclass of RelativeLayout, add all our your components in code (TextView, etc), and in your constructor you can read the attributes passed in from the XML. You can then pass that attribute to your title TextView.
http://developer.android.com/guide/topics...