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Default value of 'boolean' and 'Boolean' in Java
...ull. Primitives have different default values:
boolean -> false
byte, char, short, int, long -> 0
float, double -> 0.0
Note (2): void has a wrapper Void which also has a default of null and is it's only possible value (without using hacks).
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What does “@private” mean in Objective-C?
...lic
int publicNumber;
@protected // Protected is the default
char protectedLetter;
@private
BOOL privateBool;
}
@end
@implementation MyFirstClass
- (id)init {
if (self = [super init]) {
publicNumber = 3;
protectedLetter = 'Q';
privateBool = NO;
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How do I create and access the global variables in Groovy?
...nny tried to edit to change then to than in the first line, SO wants a six-char edit!
– JimLohse
Jan 15 '16 at 18:50
1
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How can I return NULL from a generic method in C#?
...l if T is a reference type (or a nullable value type), 0 for int, '\0' for char, etc. (Default values table (C# Reference))
Restrict T to be a reference type with the where T : class constraint and then return null as normal
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Convert seconds to Hour:Minute:Second
...2:22:05
See: SEC_TO_TIME
Run the Demo
PostgreSQL example:
SELECT TO_CHAR('8525 second'::interval, 'HH24:MI:SS');
# 02:22:05
Run the Demo
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How to test if parameters exist in rails
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Better, 3 chars shorter, simpler.
– Bengala
Mar 17 '16 at 0:35
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Recommended method for escaping HTML in Java
Is there a recommended way to escape < , > , " and & characters when outputting HTML in plain Java code? (Other than manually doing the following, that is).
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How to find files that match a wildcard string in Java?
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The wildcard project on github works like a charm as well: github.com/EsotericSoftware/wildcard
– Moreaki
Jan 12 '15 at 23:04
1
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How to show a confirm message before delete?
...se thanks to the event.preventDefault() function. You can replace the hash char with a url, it won't be triggered. But, if JavaScript is disabled the link will work as expected.
– DevAntoine
May 13 '16 at 8:18
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Getting file names without extensions
....GetFileNameWithoutExtension is not best way as it checks for invalid path chars and try to extract the DirectorySeparatorChar, AltDirectorySeparatorChar or VolumeSeparatorChar in a loop which seems not necessary for file names (not full path's)!
– S.Serpooshan
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