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Installing Ruby Gem in Windows
I'm new to ruby. I tried to install GEM on my PC by following the steps given in the site http://rubygems.org/pages/download .
...
How to get a list of current open windows/process with Java?
...
This is another approach to parse the the process list from the command "ps -e":
try {
String line;
Process p = Runtime.getRuntime().exec("ps -e");
BufferedReader input =
new BufferedReader(new InputStreamReader(p.getInputStream()));
while ((line = input.readLine()) !=...
Closing Database Connections in Java
...with them, something like that:
Connection conn = null;
PreparedStatement ps = null;
ResultSet rs = null;
try {
// Do stuff
...
} catch (SQLException ex) {
// Exception handling stuff
...
} finally {
if (rs != null) {
try {
rs.close();
} catch (SQLE...
Can I get “&&” or “-and” to work in PowerShell?
.../27: The &&operator is now available for PowerShell 7 Preview 5+:
PS > echo "Hello!" && echo "World!"
Hello!
World!
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How do I get the current username in Windows PowerShell?
...ect as argument 2.
Usage:
$cred = Get-Credential UserTo.RunAs
Run-AsUser.ps1 "whoami; pause" $cred
Run-AsUser.ps1 "[System.Security.Principal.WindowsIdentity]::GetCurrent().Name; pause" $cred
Contents of Run-AsUser.ps1 script:
param(
[Parameter(Mandatory=$true)]
[string]$script,
[Paramete...
Does PowerShell support constants?
...rom http://poshcode.org/4063
function Set-Constant {
<#
.SYNOPSIS
Creates constants.
.DESCRIPTION
This function can help you to create constants so easy as it possible.
It works as keyword 'const' as such as in C#.
.EXAMPLE
PS C:\> Set-Constan...
“历史遗留”漏洞：浅析新型SSL/TLS漏洞FREAK - 创意 - 清泛网 - 专注C/C++及内核技术
...RSA-EXPORT Keys）。黑客或情报机构能借此强迫客户端使用低版本且包含漏洞的加密方式，包括美国的出口级密钥——512位的RSA密钥。
FREAK漏洞是由法国国家信息与自动化研究所(Inria)和微软的研究人员共同发现的。为此，他们曾研...
VS工程“生成事件”之文件拷贝 - C/C++ - 清泛网 - 专注C/C++及内核技术
...拷贝有时工程下面引用了lib文件，但是编译Debug Release等版本时需要将dll拷至指定目录才能运行，如果有多个编译版本需要拷贝多份，这样不便于...有时工程下面引用了lib文件，但是编译Debug/Release等版本时需要将dll拷至指定目录...
error C2662: “Screen::move”: 不能将“this”指针从“const Screen”转...
...Screen myScreen(5,3);
const Screen blank(5,3);
//调用非const版本display
myScreen.display(cout).set('#').display(cout);
cout << endl;
//调用 const版本display
blank.display(cout);
return 0;
}
这样非常量myScreen调用非const版本的display函数...
PHP开源导航网站（114la）安装体验 - 开源 & Github - 清泛网 - 专注C/C++及内核技术
...截图：
这里不得不吐槽一下，明明是官网下载的是2.0.1版本，结果里面却是2.0版本（落后了几个月），安装后最终也是2.0版本。
环境检查：如果PDO检测通不过，请查https://www.tsingfun.com/it/tech/1644.html
安装完成后，进入...