大约有 47,000 项符合查询结果（耗时：0.0675秒） [XML]
Why is the JVM stack-based and the Dalvik VM register-based?
...n't find a reference, but I think Sun decided for the stack-based bytecode approach because it makes it easy to run the JVM on an architecture with few registers (e.g. IA32).
In Dalvik VM Internals from Google I/O 2008, the Dalvik creator Dan Bornstein gives the following arguments for choosing a r...
Static nested class in Java, why?
...edList's members, it makes sense for it to be static - it's a much cleaner approach.
As Jon Skeet points out, I think it is a better idea if you are using a nested class is to start off with it being static, and then decide if it really needs to be non-static based on your usage.
...
A migration to add unique constraint to a combination of columns
What I need is a migration to apply unique constraint to a combination of columns. i.e. for a people table, a combination of first_name , last_Name and Dob should be unique.
...
What is a semaphore?
...For example, to limit the number of simultaneous calls to a database in an application.
Here is a very pedagogic example in C# :-)
using System;
using System.Collections.Generic;
using System.Text;
using System.Threading;
namespace TheNightclub
{
public class Program
{
public stat...
Remote debugging with Android emulator
Is it possible to write the code/compile Android application on one machine and debug it remotely on the emulator launched on another? I'm sick and tired of the emulator constantly eating half of my laptop's CPU.
...
What reason is there to use null instead of undefined in JavaScript?
...vars to null. Then I'm (pretty) sure that undefined means that a disaster happened. Just imho.
– Pete Wilson
Jul 7 '11 at 1:14
...
What are .dex files in Android?
...nstructions are the same as Java bytecode instructions.
Compiled Android application code file.
Android programs are compiled into .dex (Dalvik Executable) files, which are in turn zipped into a single .apk file on the device. .dex files can be created by automatically translating compiled appli...
VS 2010 Test Runner error “The agent process was stopped while the test was running.”
... different in different test runs. I don't know exactly the reason why it happens, but it began to occur when I added a finalizer to one of my classes. When I disable the finalizer - the problem disappears. When I turn the finalizer on - the problem comes back.
Right now I don't know how to overcom...
SQL Server Configuration Manager not found
...
If you happen to be using Windows 8 and up, here's how to get to it:
The newer Microsoft SQL Server Configuration Manager is a snap-in for
the Microsoft Management Console program.
It is not a stand-alone
program as used in the pr...
Android Debug Bridge (adb) device - no permissions [duplicate]
...rks but it's not very comfortable to do so everytime you want to test your app.
– Kristopher
May 8 '13 at 14:45
5
...