大约有 30,000 项符合查询结果（耗时：0.0564秒） [XML]
Which types can be used for Java annotation members?
...n 9.6.1 of the JLS. The annotation member types must be one of:
primitive
String
an Enum
another Annotation
Class
an array of any of the above
It does seem restrictive, but no doubt there are reasons for it.
Also note that multidimensional arrays (e.g. String[][]) are implicitly forbidden by the a...
Long list of if statements in Java
...void exec() {
// ...
}
}
// etc etc
then build a Map<String,Command> object and populate it with Command instances:
commandMap.put("A", new CommandA());
commandMap.put("B", new CommandB());
then you can replace your if/else if chain with:
commandMap.get(value).exec();
...
Getting pids from ps -ef |grep keyword
...rep "keyword" to determine the pid of a daemon process (there is a unique string in output of ps -ef in it).
6 Answers
...
How to create a file in a directory in java?
...
The best way to do it is:
String path = "C:" + File.separator + "hello" + File.separator + "hi.txt";
// Use relative path for Unix systems
File f = new File(path);
f.getParentFile().mkdirs();
f.createNewFile();
...
MySQL select with CONCAT condition
...n my mind.. i have a table with firstname and lastname fields
and i have a string like "Bob Jones" or "Bob Michael Jones" and several others.
...
Replace whole line containing a string using Sed
...tion that I am using the -i and -e flags as follows: sed -i -e "s/.*search_string.*/Replacement_line/' file_being_searched.txt
– Kent Bull
Dec 27 '14 at 19:24
...
Getting all file names from a folder using C# [duplicate]
...s your Folder
FileInfo[] Files = d.GetFiles("*.txt"); //Getting Text files
string str = "";
foreach(FileInfo file in Files )
{
str = str + ", " + file.Name;
}
Hope this will help...
share
|
impr...
Android Studio Project Structure (v.s. Eclipse Project Structure)
...that describe resources of various types. Presently, the folder contains a strings.xml file with String resources definitions. As you will see from the Adding a Color section, the layout folder can also contain, for example, a descriptor of colors.
The drawable folder (7) contains images.
The ge...
How would I create a UIAlertView in Swift?
...should only be used when UIAlertController is not available. if NSClassFromString("UIAlertController") != nil { /* use UIAlertController * / } else { /* use UIAlertView * / }
– phatblat
Apr 16 '15 at 17:01
...
Setting PATH environment variable in OSX permanently
...n't forget to restart all the terminal windows, then echo $PATH. The $PATH string will be PATH_SET_IN_3&4:PATH_SET_IN_1:PATH_SET_IN_2.
Noticed that the first two ways (/etc/paths and /etc/path.d) is in / directory which will affect all the accounts in your computer while the last two ways (~/....