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25 Cards in this Set
- Front
- Back
functions
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All procedure like entities are called functions in C++ . Things that are called procedures, methods, functions, or subprograms in other languages are all called functions in C++.
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program
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A C++ program is basically just a function called main;
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This line says that main is a function with no parameters that returns int its value
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int main ( )
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The program ends when the following statement is executed
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return 0 ;
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This statement ends the invocation of the function main and returns 0 as the function value
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return 0 ;
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String/ C-string
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The text inside the quotation marks
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This is a symbol for a newline character which instructs the computer to start a new line of output
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\n
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Identifier
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The name of a variable or other items you might define in a program
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A C++ identifier must start with
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A letter or the underscore symbol
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All the rest of the characters in an identifier must be
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Letters, digits, or the underscore symbol.
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True or false: C++ is a case sensitive language
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True
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True or false: a C++ identifier can be of any length
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True
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Keyword or reserved word
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Special class of identifiers which have a predefined meaning in C++ and cannot be used as names for variables or anything else
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Every variable in a C++ program must be ______ before it is used
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declared
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What are you telling the compiler and the computer when you declare a variable ?
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What kind of data you will be storing in the variable
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What type of number is an int ?
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Whole number
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The type int is one of the types for____
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whole numbers
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type double
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One of the types for numbers with a decimal point known as floating-point numbers
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When there is more than one variable in a definition, the variables are separated by ___
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commas
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Each definition/ variable declaration ends with a
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semicolon
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True or false: every variable must be declared before it is used
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True
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True or false: variables cannot be declared any place
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False: variables may be declared any place
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Typically where are variables declared ?
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Either just before they are used or at the start of a block ( indicated by an opening brace { )
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The ranges for the types float, double, and long double are the ranges for _____ numbers
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positive
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To use the String class you must first include the string library by adding what code at the top of your program?
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#include <string>
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