大约有 9,000 项符合查询结果（耗时：0.0209秒） [XML]
Recommended way to save uploaded files in a servlet application
...Simplest way to serve static data from outside the application server in a Java web application (in case you want to serve it back)
How to save generated file temporarily in servlet based web application
share
|
...
What is an “unwrapped value” in Swift?
...you write much safer code. E.g. imagine all the null pointer exceptions in Java crashing a program because somebody forgot to check for null. Or weird behaviour on Objective-C because you forgot to check for nil. With Optional type you can't forget to deal with nil. The compiler forces you to deal w...
How does C compute sin() and other math functions?
...will generate code that calls these assembly instructions. (By contrast, a Java compiler will not. Java evaluates trig functions in software rather than hardware, and so it runs much slower.)
Chips do not use Taylor series to compute trig functions, at least not entirely. First of all they use CO...
Performance difference for control structures 'for' and 'foreach' in C#
...
Note: this answer applies more to Java than it does to C#, since C# doesn't have an indexer on LinkedLists, but I think the general point still holds.
If the list you're working with happens to be a LinkedList, the performance of the indexer-code (array-styl...
How to implement Rate It feature in Android App
...ies {
implementation 'com.vorlonsoft:androidrate:1.0.8'
}
MainActivity.java:
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
AppRate.with(this)
.setStoreType(StoreType.GOOGLEPLAY) //default i...
How many socket connections can a web server handle?
...tps://github.com/valyala/fasthttp
The leading languages are Rust, Go, C++, Java, C, and even C# ranks at 11 (6.9M per second). Scala and Clojure rank further down. Python ranks at 29th at 2.7M per second.
At the bottom of the list, I note laravel and cakephp, rails, aspnet-mono-ngx, symfony, zend. A...
What is the motivation for bringing Symbols to ES6?
...Ruby is needless; we could easily use plain strings instead, like we do in JavaScript. And now they decide to complicate things in JS with that.
...
When is a language considered a scripting language? [closed]
... own apps so much as getting an existing app to act the way you want, e.g. JavaScript for browsers, VBA for MS Office.
share
answered Sep 19 '08 at 10:56
...
How can I assign an ID to a view programmatically?
...can change from build to build so never copy an id from gen/package.name/R.java, just use "R.id.somename".
(Also, an id assigned to a Preference in XML is not used when the Preference generates its View.)
Assign id via code (programmatically)
Manually set ids using someView.setId(int);
The int m...
Why should C++ programmers minimize use of 'new'?
...n adding to the stack pointer going on. It's equally valid to say that in Java it takes no instructions to allocate space, because the compiler will manage the references at compile time.
– Charlie Martin
Jun 28 '11 at 0:33
...