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Android - get children inside a View?
..., so the recursive call of getAllChildren could cause an exception, as the cast fails. So you should add a if (!(v instanceof ViewGroup)) return; before the cast
– Phil
Sep 27 '12 at 7:19
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Converting from a string to boolean in Python?
... have just spent 4 hours trying to debug my code. My mistake was trying to cast bool("False"). It will always cast to True.
– Ev.
Sep 2 '16 at 12:37
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Why is Swift compile time so slow?
...ule optimization' in the 'Swift Compiler - Code Generation' build setting. Select 'Fast, Whole Module Optimization'
In 'Swift Compiler - Custom Flags', for your development builds, add '-Onone'
When these flags are set, the compiler will compile all Swift files in one step. We found with o...
Why do we need boxing and unboxing in C#?
...ble)o;
First we have to explicitly unbox the double ((double)o) and then cast that to an int.
What is the result of the following:
double e = 2.718281828459045;
double d = e;
object o1 = d;
object o2 = e;
Console.WriteLine(d == e);
Console.WriteLine(o1 == o2);
Think about it for a second befor...
Are negative array indexes allowed in C?
...ss the array index is explicitly promoted to 64 bits (e.g. via a ptrdiff_t cast). I have actually seen a bug of his nature with the PowerPC version of gcc 4.1.0, but I don't know if it's a compiler bug (i.e. should work according to C99 standard) or correct behaviour (i.e. index needs a cast to 64 b...
Value Change Listener to JTextField
...cumentListener can, sometime, receive two events. For instance if the user selects the whole field content, then press a key, you'll receive a removeUpdate (all the content is remove) and an insertUpdate.
In your case, I don't think it is a problem but, generally speaking, it is.
Unfortunately, it s...
Is there a way to iterate over a slice in reverse in Go?
...rface{} will not take a []string as input anymore. Even if string can be casted in interface{}, []string cannot be casted in []interface{}. Unfortunately, the present reverse function is the kind of function that needs to be rewritten a lot.
– user983716
Oct...
Declaring an unsigned int in Java
...nsigned integers. A few operations (division, right shift, comparison, and casting), however, are different. As of Java SE 8, new methods in the Integer class allow you to fully use the int data type to perform unsigned arithmetic:
In Java SE 8 and later, you can use the int data type to represe...
What is a covariant return type?
...ference to a MyFoo object will be able to invoke clone() and know (without casting) that the return value is an instance of MyFoo. Without covariant return types, the overridden method in MyFoo would have to be declared to return Object - and so calling code would have to explicitly downcast the re...
How to print (using cout) a number in binary form?
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Can I typecast the bitset value (i.e, x or y in this example) to a char*?
– nirvanaswap
Mar 16 '16 at 5:04
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