Chapter 2 C++
Which of the following lines must be included in a program that has string variables?
Hinclude <string
Which of the following statements correctly assigns the character Mto the variable named letter?
Letter = 'M';
The float data type is considered ———precision and the double data type is considered ———precision.
O single, double
A named constant is like a variable, but it its content cannot be changed while the program is running.
True
Every complete C++ program must have a
function named main
Which of the following is NOT a valid C++ identifier?
luser
Assuming that a program has the following string object definition, which statement correctly assigns the string literal "Jane" to the string object? stringe name
name = "Jane";
Astatement that starts with a hashtag (or pound) symbol (#) is called a
preprocessor directive
In the following statement, the characters Hello! are a(n) cout « "Hello!";
string literal
Which of the following must be included in any program that uses the cout object?
the header file Lostream
A variable definition tells the computer
the variable's name and the type of data it will hold
What will the following code display? int number - 23; cout << "The number is " << "number" << endl;
• The number is number