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Big-O for Eight Year Olds? [duplicate]
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answered Sep 20 '08 at 5:08
Don NeufeldDon Neufeld
20.8k1010 gold badges4949 silver badges4949 bronze badges
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Difference between null and empty (“”) Java String
... can still invoke methods or functions on it like
a.length()
a.substring(0, 1)
and so on.
If the String equals null, like b, Java would throw a NullPointerException if you tried invoking, say:
b.length()
If the difference you are wondering about is == versus equals, it's this:
== compares ...
How can I center a div within another div? [duplicate]
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109
You need to set the width of the container (auto won't work):
#container {
width: 640px; /*...
Include all existing fields and add new fields to document
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edited Dec 29 '19 at 20:27
Kaspar Lee
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answer...
Javascript trick for 'paste as plain text` in execCommand
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edited Oct 30 '18 at 21:56
Quinn Keaveney
6321010 silver badges2929 bronze badges
answered...
How to turn off caching on Firefox?
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230
Enter "about:config" into the Firefox address bar and set:
browser.cache.disk.enable = false
br...
How to delete an object by id with entity framework
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answered Jan 20 '15 at 16:33
dwkddwkd
2,0501414 silver badges1515 bronze badges
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Java ArrayList - how can I tell if two lists are equal, order not mattering?
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edited Nov 21 '12 at 20:30
answered Nov 21 '12 at 20:06
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What is the fastest way to send 100,000 HTTP requests in Python?
I am opening a file which has 100,000 URL's. I need to send an HTTP request to each URL and print the status code. I am using Python 2.6, and so far looked at the many confusing ways Python implements threading/concurrency. I have even looked at the python concurrence library, but cannot figure ...
Android update activity UI from service
...vice implements BmService {
private static final int PRESSURE_RATE = 500000; // microseconds between pressure updates
private SensorManager sensorManager;
private SensorEventListener pressureListener;
private ObservableEmitter<Float> pressureObserver;
private Observable&...