Operator Overloading Sample (Visual Basic)
This solution illustrates the concepts and usage of overloaded operators, using U.S. Dollars and Euros as an example.
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This sample code is intended to illustrate a concept, and it shows only the code that is relevant to that concept. It may not meet the security requirements for a specific environment, and it should not be used exactly as shown. We recommend that you add security and error-handling code to make your projects more secure and robust. Microsoft provides this sample code "AS IS" with no warranties.
To run this sample
The sample consists of two classes, EURO, representing Euros, and USD, representing U.S. Dollars. Form1 acts as a test application for the two classes. Users can enter various values for USD, execute the operators, and convert USD to EURO.
The following programming techniques are demonstrated:
Overloaded operators. The USD class has these overloaded operators: constructor, +, -, *, /.
Narrowing and Widening operators. Both the EURO and USD classes have widening and narrowing conversion to and from Double.