大约有 31,500 项符合查询结果(耗时:0.0546秒) [XML]
Draw on HTML5 Canvas using a mouse
... trying to use this code, but have issues with the drawing being off vertically when I'm not scrolled all the way down on the page. What should I change in this code?
– Cameron Darlington
Dec 11 '14 at 22:13
...
In JPA 2, using a CriteriaQuery, how to count results
...onfuse these concepts :-) JPA comes with very powerfull/ complex API that allows you to do multiple joins/ fetches/ aggregations/ aliases etc in a single query. You have to deal with it while counting.
– G. Demecki
Sep 14 '15 at 8:16
...
Java regex email
First of all, I know that using regex for email is not recommended but I gotta test this out.
20 Answers
...
How to install a specific version of a ruby gem?
Using the command-line gem tool, how can I install a specific version of a gem?
6 Answers
...
Why is (object)0 == (object)0 different from ((object)0).Equals((object)0)?
...
The reason the calls behave different is they bind to very different methods.
The == case will bind to the static reference equality operator. There are 2 independent boxed int values created hence they are not the same reference.
In th...
Programmatically Lighten or Darken a hex color (or rgb, and blend colors)
Here is a function I was working on to programmatically lighten or darken a hex color by a specific amount. Just pass in a string like "3F6D2A" for the color ( col ) and a base10 integer ( amt ) for the amount to lighten or darken. To darken, pass in a negative number (i.e. -20 ).
...
How can I make SQL case sensitive string comparison on MySQL?
...y default. This means that if you search with col_name LIKE 'a%', you get all column values that start with A or a. To make this search case sensitive, make sure that one of the operands has a case sensitive or binary collation. For example, if you are comparing a column and a string that both have...
Why do we have map, fmap and liftM?
Why do we have three different functions that do essentially the same thing?
1 Answer
...
Randomize a List
... Shuffle method, which is asking for trouble if the method is going to be called repeatedly. Below is a fixed, full example based on a really useful comment received today from @weston here on SO.
Program.cs:
using System;
using System.Collections.Generic;
using System.Threading;
namespace Simple...
Converting ISO 8601-compliant String to java.util.Date
... hours off UTC, so the string does not necessarily end with ":00".
ISO8601 allows only the number of hours to be included in the time zone, so "+01" is equivalent to "+01:00"
ISO8601 allows the usage of "Z" to indicate UTC instead of "+00:00".
The easier solution is possibly to use the data type c...