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The QDialog class is the base class of dialog windows. A dialog window is a top-level window mostly used for short-term tasks and brief communications with the user. QDialogs may be modal or modeless. Note that QDialog (and any other widget that has type Qt::Dialog) uses the parent widget slight...

References: akka.io/docs Check out my blog: https://blog.knoldus.com/2016/08/07/supervision-and-monitoring-in-akka/

Protocols and Delegates are two related but different concept: A Protocol is a interface a class can conforms to, meaning that class implements the listed methods. A Delegate is typically an anonymous object that conforms to a protocol. The application of Delegate called Delegation is a design ...

Traditionally, a literal is an expression denoting a constant whose type and value are evident from its spelling. For example, 42 is a literal, while x is not since one must see its declaration to know its type and read previous lines of code to know its value. However, C++11 also added user-define...

The Cassandra Driver from Datastax very much mirrors the Java JDBC MySQL driver. Session, Statement, PreparedStatement are present in both drivers. The Singleton Connection is from this question and answer: http://stackoverflow.com/a/24691456/671896 Feature wise, Cassandra 2 and 3 are identical...

When you need to handle time information for a worldwide user base in MySQL, use the TIMESTAMP data type in your tables. For each user, store a user-preference timezone column. VARCHAR(64) is a good data type for that column. When a user registers to use your system, ask for the time zone value. ...