大约有 43,000 项符合查询结果（耗时：0.0508秒） [XML]
Java ResultSet how to check if there are any results
...row sections:
http://docs.oracle.com/javase/7/docs/api/java/sql/ResultSet.html#isBeforeFirst()
http://docs.oracle.com/javase/7/docs/api/java/sql/ResultSet.html#first()
Okay, basically this means that you should use "isBeforeFirst" as long as you have a "forward only" type. Otherwise it's less over...
What is an .inc and why use it?
...hp and .inc. PHP includes also work with other file types. Including an, '.html', '.js', '.css', '.txt' or any custom file extensions you can think of will also make PHP parse read PHP code from it. Useful when you want to create file based database and want to tell if it's a database file. like .da...
How can I use MS Visual Studio for Android Development?
...udio:
http://ian-ni-lewis.blogspot.com/2011/01/its-like-coming-home-again.html
Download WinGDC for Android from
http://www.wingdb.com/wgMobileEdition.htm
share
|
improve this answer
|
...
How to print matched regex pattern using awk?
...arenthesized subexpression.
http://www.gnu.org/software/gawk/manual/gawk.html#String-Functions
share
|
improve this answer
|
follow
|
...
Generating a PNG with matplotlib when DISPLAY is undefined
...plotlibrc (as an example, seehttp://matplotlib.org/faq/troubleshooting_faq.html#locating-matplotlib-config-dir). See also matplotlib.org/users/customizing.html, which has an example config file at the bottom of the page. Find "agg" on that page and you'll see the config option you need.
...
Is there a portable way to get the current username in Python?
...efer to the pwd docs for more details:
http://docs.python.org/library/pwd.html
share
|
improve this answer
|
follow
|
...
How to make a promise from setTimeout
...xample, which isn't remotely Promises-A compliant: Live Copy
<!DOCTYPE html>
<html>
<head>
<meta charset=utf-8 />
<title>Very basic promises</title>
</head>
<body>
<script>
(function() {
// ==== Very basic promise implementation, no...
Set the value of an input field
...
The answer is really simple
// Your HTML text field
<input type="text" name="name" id="txt">
//Your javascript
<script type="text/javascript">
document.getElementById("txt").value = "My default value";
</script>
Or if you want to avoid J...
Convert duration to hours:minutes:seconds (or similar) in Rails 3 or Ruby
...
See: http://api.rubyonrails.org/classes/ActionView/Helpers/DateHelper.html
distance_of_time_in_words(3600)
=> "about 1 hour"
share
|
improve this answer
|
follow
...
When to use StringBuilder in Java [duplicate]
...
Have a look at: http://www.javaspecialists.eu/archive/Issue068.html and http://www.javaspecialists.eu/archive/Issue105.html
Do the same tests in your environment and check if newer JDK or your Java implementation do some type of string operation better with String or better with StringB...