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Difference between 3NF and BCNF in simple terms (must be able to explain to an 8-year old)
...ypes:
one type of cheese
one type of meat
one type of vegetable
So we order two pizzas and choose the following toppings:
Pizza Topping Topping Type
-------- ---------- -------------
1 mozzarella cheese
1 pepperoni meat
1 olives vegetable
2 mozzarell...
Is null an Object?
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If null were an Object, it would support the methods of java.lang.Object such as equals(). However, this is not the case - any method invocation on a null results in a NullPointerException.
And this is what the Java Language Specification has to say on this top...
Initialize parent's protected members with initialization list (C++)
Is it possible to use the initialization list of a child class' constructor to initialize data members declared as protected in the parent class? I can't get it to work. I can work around it, but it would be nice if I didn't have to.
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BroadcastReceiver with multiple filters or multiple BroadcastReceivers?
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instead, you may provide two different intent filters:
filter for refresh only
IntentFilter filterRefresh = new IntentFilter(Params.INTENT_REFRESH);
filter for refresh and update
IntentFilter filterRefreshUpdate = new IntentFilter();
filterRefreshUpdate.addAction(Params.INTENT_REFRES...
Get list of a class' instance methods
...hod1/) # => ["method1"]
TestClass.methods.grep(/new/) # => ["new"]
Or you can call methods (not instance_methods) on the object:
test_object = TestClass.new
test_object.methods.grep(/method1/) # => ["method1"]
s...
What is TypeScript and why would I use it in place of JavaScript? [closed]
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I originally wrote this answer when TypeScript was still
hot-off-the-presses. Five years later, this is an OK overview, but look
at Lodewijk's answer below for more depth
1000ft view...
TypeScript is a superset of JavaS...
Android: What is better - multiple activities or switching views manually?
I have developed some apps for Android, and this questions stays always:
7 Answers
7
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Can you control how an SVG's stroke-width is drawn?
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No, you cannot specify whether the stroke is drawn inside or outside an element. I made a proposal to the SVG working group for this functionality in 2003, but it received no support (or discussion).
As I noted in the proposal,
you can achieve the same visual result as "inside"...
When should the xlsm or xlsb formats be used?
Since Excel 2007, Microsoft has split the classical .xls format to several formats (in particular, .xlsx , .xlsm , .xlsb ). I've got no problem to understand the use and purpose of .xlsx format but I am still wondering whether we should use a .xlsm or a .xlsb format when creating a file c...
Using bitwise OR 0 to floor a number
A colleague of mine stumbled upon a method to floor float numbers using a bitwise or:
6 Answers
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