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Count Rows in Doctrine QueryBuilder

I'm using Doctrine's QueryBuilder to build a query, and I want to get the total count of results from the query. 10 Answ...
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How to convert an Array to a Set in Java

I would like to convert an array to a Set in Java. There are some obvious ways of doing this (i.e. with a loop) but I would like something a bit neater, something like: ...
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Removing duplicates in lists

Pretty much I need to write a program to check if a list has any duplicates and if it does it removes them and returns a new list with the items that weren't duplicated/removed. This is what I have but to be honest I do not know what to do. ...
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Converting ISO 8601-compliant String to java.util.Date

I am trying to convert an ISO 8601 formatted String to a java.util.Date . 29 Answers ...
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C++模板-继承-具现化 - C/C++ - 清泛网 - 专注C/C++及内核技术

C++模板-继承-具现化今天在学习effective c++中的第49个条款时,遇到一个模板继承的方法,让我打开眼界,感慨万千啊!具体的代码如下:class NewHandlerHolde 今天在学习effective c++中的第49个条款时,遇到一个模板继承的方法,让我...
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[完整源码实例] 修改 CListCtrl 的标题栏字体颜色;重绘 CListCtrl 标题栏 ...

[完整源码实例] 修改 CListCtrl 的标题栏字体颜色;重绘 CListCtrl 标题栏如果只需设置标题栏字体的话,无需自绘CHeaderCtrl,部分代码如下:CFont *f = new CFont; f->CreateFont(13, nHeight ...如果只需设置标题栏字体的话,无需自绘CHeaderC...
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C++ 取得系统当前时间 - C/C++ - 清泛网 - 专注C/C++及内核技术

C++ 取得系统当前时间方法一,只能精确到秒#include <time.h> time_t tt = time(NULL); 这句返回的只是一个时间戳 tm* t= localtime(&tt); printf("%d...方法一,只能精确到秒 #include <time.h> time_t tt = time(NULL);//这句返回的只是一个时间戳 tm* t= l...
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ifstream 线程安全读文件 - C/C++ - 清泛网 - 专注C/C++及内核技术

ifstream 线程安全读文件函数 safeGetline:std::istream& safeGetline(std::istream& is, std::string& t){ t clear(); 使用std::streambuf 函数 safeGetline: std::istream& safeGetline(std::istream& is, std::string& t) { t.clear(); //这比使用std::istream逐个读...
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C#中数组、ArrayList和List三者的区别 - 更多技术 - 清泛网 - 专注C/C++及内核技术

C#中数组、ArrayList和List三者的区别在C#中数组,ArrayList,List都能够存储一组对象,那么这三者到底有什么样的区别呢。数组 数组在C#中最早出现的。在内存中是连续存储的,...在C#中数组,ArrayList,List都能够存储一组对象,那么...
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Linq 多字段排序,二次排序 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...q 多字段排序,二次排序Linq:ordered = source.OrderByDescending( t => t.f1 ).ThenBy( t => t.f2 );类似SQL:select * from t1 order by f1 d...Linq:ordered = source.OrderByDescending( t => t.f1 ).ThenBy( t => t.f2 ); 类似SQL:select * from t1 order by f1 desc ,f2 asc 这种写法...