大约有 45,000 项符合查询结果（耗时：0.0650秒） [XML]
What do REFRESH and MERGE mean in terms of databases?
...
What is the default (if we didnt set any CascadeType), and what is the most sensible/common to set?
– Rosdi Kasim
Jul 30 '10 at 4:56
...
Java - get the current class name?
...
The "$1" is not "useless non-sense". If your class is anonymous, a number is appended.
If you don't want the class itself, but its declaring class, then you can use getEnclosingClass(). For example:
Class<?> enclosingClass = getClass().getEnclosingClass(...
In javascript, is an empty string always false as a boolean?
...
Yes. Javascript is a dialect of ECMAScript, and ECMAScript language specification clearly defines this behavior:
ToBoolean
The result is false if the argument is the empty String (its length is zero);
otherwise the result is true
Quote taken from http://www.ecma-international.org/publications/f...
How do I configure IIS for URL Rewriting an AngularJS application in HTML5 mode?
...se href="/">
Don't forget to install IIS URL Rewrite on server.
Also if you use Web API and IIS, this will work if your API is at www.yourdomain.com/api because of the third input (third line of condition).
share
...
Regex for string contains?
What is the regex for simply checking if a string contains a certain word (e.g. 'Test')? I've done some googling but can't get a straight example of such a regex. This is for a build script but has no bearing to any particular programming language.
...
Can an abstract class have a constructor?
...e concrete class TimesWhat has a constructor that allows the caller to specify the value.
Abstract constructors will frequently be used to enforce class constraints or invariants such as the minimum fields required to setup the class.
NOTE: As there is no default (or no-arg) constructor in the ...
How to remove the last character from a string?
...you need to do is use substring():
public String method(String str) {
if (str != null && str.length() > 0 && str.charAt(str.length() - 1) == 'x') {
str = str.substring(0, str.length() - 1);
}
return str;
}
...
Why java.util.Optional is not Serializable, how to serialize the object with such fields
...hat the caller immediately check the Optional and extract the actual value if it's present. If the value is absent, the caller can substitute a default value, throw an exception, or apply some other policy. This is typically done by chaining fluent method calls off the end of a stream pipeline (or o...
Force an Android activity to always use landscape mode
...
Looking at the AndroidManifest.xml (link), on line 9:
<activity android:screenOrientation="landscape" android:configChanges="orientation|keyboardHidden" android:name="VncCanvasActivity">
This line specifies the screenOrientation as landscape...
How can I get jQuery to perform a synchronous, rather than asynchronous, Ajax request?
...
From the jQuery documentation: you specify the asynchronous option to be false to get a synchronous Ajax request. Then your callback can set some data before your mother function proceeds.
Here's what your code would look like if changed as suggested:
beforecrea...