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How many threads can a Java VM support?
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This depends on the CPU you're using, on the OS, on what other processes are doing, on what Java release you're using, and other factors. I've seen a Windows server have > 6500 Threads before bringing the machine down. Most of the threads were not doing anything, o...
Testing web application on Mac/Safari when I don't own a Mac
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Yes Browserstack is a very good one, you log in to a live OS with browser. Very handy.
– Jeff Clayton
Dec 28 '15 at 15:06
15
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How to copy text programmatically in my Android app?
...Android app and I want to copy the text value of an EditText widget. It's possible for the user to press Menu+A then Menu+C to copy the value, but how would I do this programmatically?
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How to retrieve the current version of a MySQL database management system (DBMS)?
...ile_machine | i686 |
| version_compile_os | pc-linux-gnu |
+-------------------------+------------------------------------------+
5 rows in set (0.04 sec)
MySQL 5.0 Reference Manual (pdf) - Determining Your Current MySQL Version ...
No module named MySQLdb
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You need to use one of the following commands. Which one depends on what OS and software you have and use.
easy_install mysql-python (mix os)
pip install mysql-python (mix os/ python 2)
pip install mysqlclient (mix os/ python 3)
apt-get install python-mysqldb (Linux Ubuntu, ...)
cd /usr/ports/da...
Detect application heap size in Android
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How much heap should my app use, given the constraints of the Android OS version and hardware of the user's device?
There is a different method for determining each of the above.
For item 1 above: maxMemory()
which can be invoked (e.g., in your main activity's onCreate() method) as follows:...
How to set or change the default Java (JDK) version on OS X?
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those really are backticks the export line
– David West
Nov 27 '14 at 19:38
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fstream默认不支持中文路径和输出整数带逗号的解决办法 - C/C++ - 清泛网 -...
...输出创建文件夹失败的信息。
一个解决办法是：在中文操作系统下，调用locale::global(std::locale(""))，将全局区域设置为中文，如下例：
#include <iostream>
#include <fstream>
#include <string>
#include <direct.h>
using namespace std;
void main(...
C++/COM VARIANT实现二维数组 - C/C++ - 清泛网 - 专注C/C++及内核技术
...传递次数是提高效率的一种有效方法。其中，Excel表格的操作就可能涉及到大量数据，一次传递一个二维数组是提高对Excel表的操作效率。下面以两种不同方式来实现VARIANT二维数组的操作。
1、使用SAFEARRAY实现二维数组
SAFEARRAY...
MFC OnKeyDown没反应，不响应键盘操作 - C/C++ - 清泛网 - 专注C/C++及内核技术
MFC OnKeyDown没反应，不响应键盘操作在MFC中添加键盘的消息响应，通常是通过OnKeyDown函数来完成消息的捕捉和响应。afx_msg void OnKeyDown(UINT nChar, UINT nRepCnt, U...在MFC中添加键盘的消息响应，通常是通过OnKeyDown函数来完成消息的捕捉和...