大约有 41,000 项符合查询结果（耗时：0.0355秒） [XML]
Is it OK to use == on enums in Java?
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Just my 2 cents: Here is the code for Enum.java, as published by Sun, and part of the JDK:
public abstract class Enum<E extends Enum<E>>
implements Comparable<E>, Serializable {
// [...]
/**
* Returns true if the specified object is equal to this
* enu...
How do I use VaryByParam with multiple parameters?
In ASP.NET MVC2 I use OutputCache and the VaryByParam attribute. I got it working fine with a single parameter, but what is the correct syntax when I have several parameters on the method?
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How can I iterate through the unicode codepoints of a Java String?
...Java uses a UTF-16-esque encoding for internal representations of Strings, and, yes, it encodes characters outside the Basic Multilingual Plane (BMP) using the surrogacy scheme.
If you know you'll be dealing with characters outside the BMP, then here is the canonical way to iterate over the charact...
Which characters are valid/invalid in a JSON key name?
...ull character (U+0000, plain "null byte" in UTF-8), etc? The both json.org and the linked official/formal ECMA specification PDF seem to imply that yes, those are valid in JSON, even in their literal forms (not just in the \u four-hex-digits form).
– mtraceur
J...
PHP code to convert a MySQL query to CSV [closed]
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Among above two which one is better, safer and why?
– Chella
Jul 25 '14 at 7:25
1
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Thin web server: `start_tcp_server': no acceptor (RuntimeError) after git branch checkout
A Rails 3.2.0 app, working fine with Thin web server, both locally and on Heroku cedar stack.
9 Answers
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Remove file extension from a file name string
...p 9 '11 at 1:22
R. Martinho FernandesR. Martinho Fernandes
203k6565 gold badges404404 silver badges487487 bronze badges
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Django admin: how to sort by one of the custom list_display fields that has no database field
...ustom manager for Customer which includes the number of orders aggregated, and then setting admin_order_field to that aggregate, ie
from django.db import models
class CustomerManager(models.Manager):
def get_query_set(self):
return super(CustomerManager, self).get_query_set().annotat...
format statement in a string resource file
...t markers - %[POSITION]$[TYPE] (where [POSITION] is the attribute position and [TYPE] is the variable type), rather than the short versions, for example %s or %d.
Quote from Android Docs: String Formatting and Styling:
<string name="welcome_messages">Hello, %1$s! You have %2$d new messages....
How do I escape a single quote?
... @Pascal, w3c validator shows single quotes are valid for attributes. And see stackoverflow.com/questions/2210430/…
– ChrisJJ
Feb 16 '15 at 15:02
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