Exam 6: Io Streams As an Introduction to Objects and Classes

To open a file with a user supplied name,you would need to store the name in a variable.If the file name was to have no more than 20 characters in it,which would be an appropriate declaration of the file name variable?

You may use a read extraction)as a boolean expression in an if or while statement.

Which function returns true if the character argument is a letter?

The manipulator used to change the number of decimal places displayed is _________

Data that is sent to an output stream representing a file will be immediately saved to disk.

What is the output of the following code? Char ch='G'; Cout << tolowerch)<< endl;

If you use the width command,it stays in effect for all values that are send to the stream.

The _______ function puts one character back into the input stream.

In the following function declaration,the istream object cin is called a ___________________. void outputistream& in=cin);

Which of the following is the correct way to close a file stream named outFile?

What is wrong with the following code? While ! fileIn.eof)) { FileIn >> value; FileOut << value; }