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Java Pass Method as Parameter
...void execute(Object data)
{
System.out.println(data.toString());
}
}
public static void callCommand(Command command, Object data)
{
command.execute(data);
}
public static void main(String... args)
{
callCommand(new PrintCom...
boost::filesystem指南 - C/C++ - 清泛网 - 专注C/C++及内核技术
...(bf::exists(path))
{
std::ofstream out(path.file_string().c_str());
if(!out) return 1;
out << "一个测试文件\n";
} else {
std::cout << path << "不存在\n";
//目录不存在，创建
...
How do you debug MySQL stored procedures?
...
This doesn't seem to work for FUNCTIONS and I have no idea why. It always gives "Error Code: 1415. Not allowed to return a result set from a function". Is there any recourse?
– Patrick M
Jul 28 '15 at 21:29
...
How to write loop in a Makefile?
...r shell operations nor a need for the developer to schpeel out a hardcoded string of numeric values.
the $(eval ....) builtin macro is your friend. Or can be at least.
define ITERATE
$(eval ITERATE_COUNT :=)\
$(if $(filter ${1},0),,\
$(call ITERATE_DO,${1},${2})\
)
endef
define ITERATE_DO
$(if...
Java 8 NullPointerException in Collectors.toMap
...esult, thus the lambda for your case would be () -> new TreeMap<>(String.CASE_INSENSITIVE_ORDER) to create a case insensitive String keyed TreeMap.
– Brett Ryan
Oct 19 '15 at 12:58
...
Gridview height gets cut
I'm trying to display 8 items inside a gridview. Sadly, the gridview height is always too little, so that it only shows the first row, and a little part of the second.
...
Unit Testing AngularJS directive with templateUrl
... we are going to have a big piece of html that we are going to inject as a string into the template cache then what are we gonna do when we change the html on the front end? Change the html in the test as well? IMO that is an unsustainable answer and the reason we went with using the template over t...
How do I add more members to my ENUM-type column in MySQL?
...
enum is just a fancy integer, with a string representation. adding items to the end is fine, since you just add meaning old values. but changing the order / removing enums will make those numbers undefined. (eg. 1=>italy, 2=>germany), then extending will b...
How to programmatically set style attribute in a view
...mmatically; you can set the look of a screen, or part of a layout, or individual button in your XML layout using themes or styles. Themes can, however, be applied programmatically.
There is also such a thing as a StateListDrawable which lets you define different drawables for each state the your B...
Flexbox and Internet Explorer 11 (display:flex in ?)
... {
#flexible-content{
flex: 1;
}
}
Since flexbox is a W3C Candidate and not official, browsers tend to give different results, but I guess that will change in the immediate future.
If someone has a better answer I would like to know!
...