3 Topics
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#include<iostream> using namespace std; class Singleton { static Singleton * s; Singleton() { } public: ~Singleton() { s = NULL; } static Singleton * getInstance(); void print() { cout<<this<<endl; } }; Singleton* Singleton::s=NULL; Singleton* Singleton::getInstance() { if(s == NULL) { s = new Singleton(); } return s; } int main() … |
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Hi All I use MS Access to import information from Excel, check for duplicates and post it to an Access data table. The amount of data is making this process extremely slow. I am attempting to move the data tables to MySQL and then running a Stored Procedure to do … |
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Hi guys, I'm running into an issue that's really frustrating me. It's probably the most common newbie oversight, causing me to get the dreaded NullReferenceException. I've encountered it many times before, but this time it's got me stumped. I'm filling a Datagrid with a table from a database. I'm able … |
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