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Difference between sampling and profiling in jVisualVM
VisualVM has two separate tabs for sampling and profiling. What is the difference between sampling and profiling in VisualVM?
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How to create an instance of anonymous class of abstract class in Kotlin?
Assume that KeyAdapter is an abstract class with several methods that can be overridden.
1 Answer
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Passing arguments with spaces between (bash) script
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$*, unquoted, expands to two words. You need to quote it so that someApp receives a single argument.
someApp "$*"
It's possible that you want to use $@ instead, so that someApp would receive two arguments if you were to call b...
Inconsistent accessibility: property type is less accessible
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make your class public access modifier,
just add public keyword infront of your class name
namespace Test
{
public class Delivery
{
private string name;
private string address;
private DateTime arriva...
How to find the Windows version from the PowerShell command line
...C
System Locale : ru;Russian
Hotfix(s) : 274 Hotfix(s) Installed.,[01]: KB2849697,[02]: KB2849697,[03]:...
Windows 10 output for the same command:
OS Name : Microsoft Windows 10 Enterprise N 2016 LTSB
OS Version : 10.0.14393 N/A Build 14393
OS Manufacturer ...
Join an Array in Objective-C
I'm looking for a method of turning a NSMutableArray into a string. Is there anything on a par with this Ruby array method?
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What is the syntax for a default constructor for a generic class?
Is it forbidden in C# to implement a default constructor for a generic class?
3 Answers
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Convert array of strings to List
I've seen examples of this done using .ToList() on array types, this seems to be available only in .Net 3.5+ . I'm working with .NET Framework 2.0 on an ASP.NET project that can't be upgraded at this time, so I was wondering: is there another solution? One that is more elegant than looping throug...
STL中map容器使用自定义key类型报错详解 - C/C++ - 清泛网 - 专注C/C++及内核技术
...定义一个结构体来试试：[cpp]view plaincopystructa{char*pName;intm_a;} 引言
STL的map容器中，key的类型是不是随意的呢？
实践
编写测试代码
定义一个结构体来试试：
struct a
{
char* pName;
int m_a;
};
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map<a, int> mp;
a ...
Rails Migration: Remove constraint
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Not sure you can call t.address? Anyway... I would use change_column like so
change_column :users, :address, :string, :null => true
Docs...
http://apidock.com/rails/ActiveRecord/ConnectionAdapters/SchemaStatements/change_col...