大约有 44,000 项符合查询结果（耗时：0.0370秒） [XML]
Check if a string contains a number
...mbers, whereas I'm looking for numbers in what I'd like to be a numberless string.
I need to enter a string and check to see if it contains any numbers and if it does reject it.
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Parse date string and change format
I have a date string with the format 'Mon Feb 15 2010'. I want to change the format to '15/02/2010'. How can I do this?
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How do you create a dictionary in Java? [closed]
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You'll want a Map<String, String>. Classes that implement the Map interface include (but are not limited to):
HashMap
LinkedHashMap
Hashtable
Each is designed/optimized for certain situations (go to their respective docs for more info)....
How should I escape strings in JSON?
When creating JSON data manually, how should I escape string fields? Should I use something like Apache Commons Lang's StringEscapeUtilities.escapeHtml , StringEscapeUtilities.escapeXml , or should I use java.net.URLEncoder ?
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JSON parsing using Gson for Java
I would like to parse data from JSON which is of type String .
I am using Google Gson .
11 Answers
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Spring 3 RequestMapping: Get path value
...lic void foo(@PathVariable("id") int id, HttpServletRequest request) {
String restOfTheUrl = (String) request.getAttribute(
HandlerMapping.PATH_WITHIN_HANDLER_MAPPING_ATTRIBUTE);
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}
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StringIO in Python3
I am using Python 3.2.1 and I can't import the StringIO module. I use
io.StringIO and it works, but I can't use it with numpy 's genfromtxt like this:
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What exactly does the .join() method do?
...d by .join() which I have read is the preferred method for concatenating strings.
9 Answers
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What is a good Java library to zip/unzip files? [closed]
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import net.lingala.zip4j.core.ZipFile;
public static void unzip(){
String source = "some/compressed/file.zip";
String destination = "some/destination/folder";
String password = "password";
try {
ZipFile zipFile = new ZipFile(source);
if (zipFile.isEncrypted()) ...
How do you create a random string that's suitable for a session ID in PostgreSQL?
I'd like to make a random string for use in session verification using PostgreSQL. I know I can get a random number with SELECT random() , so I tried SELECT md5(random()) , but that doesn't work. How can I do this?
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