Tutorial by Topics: explicit

Explicit Conversion (aka "Casting"): (type) expression "Explicit conversion" is also commonly referred to as "casting".

An expression can be explicitly converted or cast to type T using dynamic_cast<T>, static_cast<T>, reinterpret_cast<T>, or const_cast<T>, depending on what type of cast is intended. C++ also supports function-style cast notation, T(expr), and C-style cast notation, (T)expr. ...

Option Explicit On is a recommended good practice with Visual Basic .Net. It helps you as the developer to produce cleaner, more stable, more bug-free, more maintainable code. In some cases it may also help you write programs with better performance too! with ref to https://support.microsoft.com/...