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C# 通过代码安装、卸载、启动、停止服务 - .NET(C#) - 清泛IT论坛，有思想、有深度
...sp; IDictionary _SavedState = new Hashtable();
ServiceController service = new ServiceController(serviceName);
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Simplest way to read json from a URL in java
...StringBuilder();
int cp;
while ((cp = rd.read()) != -1) {
sb.append((char) cp);
}
return sb.toString();
}
public static JSONObject readJsonFromUrl(String url) throws IOException, JSONException {
InputStream is = new URL(url).openStream();
try {
BufferedReader...
How can I calculate the difference between two dates?
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Not all days have 86400 seconds. For a trivial example that's fine but it's not a good idea in the real world. DST changes, leap seconds, etc can all mess with it. NSCalendar can tell you how many seconds are in a given day.
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Java NIO FileChannel versus FileOutputstream performance / usefulness
...is buffer size is ripe for tuning. I've settled on 4KB for one part of my application, 256KB for another. I suspect your code is suffering with such a large buffer. Run some benchmarks with buffers of 1KB, 2KB, 4KB, 8KB, 16KB, 32KB and 64KB to prove it to yourself.
Don't perform java benchmarks ...
Download large file in python with requests
...er failure. f.flush() makes the code slower here for no reason. The flush happens when the correponding file buffer (inside app) is full. If you need more frequent writes; pass buf.size parameter to open().
– jfs
Sep 28 '15 at 19:08
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Git status ignore line endings / identical files / windows & linux environment / dropbox / mled
.... Try using bitbucket (it have free private repositories), just make one small repo and test on your 2 machines with some small text files.
– Saša Šijak
Dec 13 '13 at 9:11
1
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How does the bitwise complement operator (~ tilde) work?
...ng the binary representation of a number, taking its complement (inverting all the bits) and adding one. Two starts as 0000 0010, and by inverting the bits we get 1111 1101. Adding one gets us the result above. The first bit is the sign bit, implying a negative.
So let's take a look at how we get ~2...
When to use volatile with multi threading?
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However two threads both accessing a shared variable is something which calls for protection via a mutex isn't it?
But in that case, between the thread locking and releasing the mutex the code is in a critical section where only that one thread can access the variable, in which case the variable ...
How to configure PostgreSQL to accept all incoming connections
I've got a PostgreSQL data base that I'd like to configure to accept all incoming connections regardless of the source IP address. How can this be configured in the pg_hba.conf file? I'm using postgreSQL version 8.4.
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How to use executables from a package installed locally in node_modules?
How do I use a local version of a module in node.js . For example, in my app, I installed coffee-script:
22 Answers
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