Executable Statements

• Assignment Statements

  The = operator is used to assign a value to a memory location identified by an identifier. The assigned value and the identifier must have the same datatype. In some cases C++ implicitly promotes or truncates data values when the data types of the assigned value and the identifier are not the same

• Expressions

  arithmetic and logical operators are used to perform the computations on the data. Expressions involving variables of different data types results in vaariables being promoted to the highest datatype in the expression. C++ evaluates expressions based on its internally defined hierarchy of operations.

• Input and Output statements

  C++ treats inputs and outputs as streams. In order to perform input/output, the data stream must be directed to the appropriate input/output stream object. cin and cout are the standard input and standard output stream objects, respectively. The extractor function >> is used to extract data from input streams, and the insertor function << is used to insert data into the output stream.

Back to Previous Page