大约有 47,000 项符合查询结果（耗时：0.0525秒） [XML]
Scanner vs. StringTokenizer vs. String.Split
I just learned about Java's Scanner class and now I'm wondering how it compares/competes with the StringTokenizer and String.Split. I know that the StringTokenizer and String.Split only work on Strings, so why would I want to use the Scanner for a String? Is Scanner just intended to be one-stop-shop...
SQL - The conversion of a varchar data type to a datetime data type resulted in an out-of-range valu
...ormatting the date to build the SQL statement. I had used Format(DateTime.Now, "yyyymmdd") when it should have been Format(DateTime.Now, "yyyyMMdd")
– Jay Imerman
Jan 12 '17 at 14:43
...
Returning value from Thread
...;Integer>() {
@Override
public Integer call() {return 2;}
});
Now all you do is say value.get() whenever you need to grab your returned value, the thread is started the very second you give value a value so you don't ever have to say threadName.start() on it.
What a Future is, is a pro...
jQuery 'input' event
...
Do you know if jQuery makes up the missing browser support? (IE8, IE9 inconsistencies, etc)
– jcsanyi
Jun 29 '13 at 20:12
...
How to get IP address of the device from code?
...oid) file. I've run this code only on few devices and Emulator but let me know here if you find weird results.
// AndroidManifest.xml permissions
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
//...
In PowerShell, how do I define a function in a file and call it from the PowerShell commandline?
... your functions in it to MyFunctions.psm1 (you've just created a module!). Now for a module to load properly, you have to do some specific things with the file. First for Import-Module to see the module (you use this cmdlet to load the module into the shell), it has to be in a specific location. The...
Split Strings into words with multiple word boundary delimiters
...
Now if only I could remember the difference between \w, \W, \s, and \S. Whoever thought that the capitalization of a flag should invert its meaning needs to be shot through the head.
– ArtOfWarfare
...
Why does csvwriter.writerow() put a comma after each character?
...
Now it also writes the quotation marks of the string. Is there a way around that?
– CGFoX
Nov 5 '16 at 19:07
...
Is there a way to get a collection of all the Models in your Rails app?
...ection to search for every classes that extends ActiveRecord::Base. Don't know how you can list all the classes though...
EDIT: Just for fun, I found a way to list all classes
Module.constants.select { |c| (eval c).is_a? Class }
EDIT: Finally succeeded in listing all models without looking at di...
How does the static modifier affect this code?
... all static variables are detected and initialized with default values.
So now the values are:
A obj=null
num1=0
num2=0
The second phase, execution, starts from top to bottom. In Java, the execution starts from the first static members.
Here your first static variable is static A obj = new A();, s...