Exam 3: Input/Output

In C++,the dot is an operator called the ____________________operator.

Suppose that x and y are int variables,ch is a char variable,and the input is: 4 2 A 12 Choose the values of x,y,and ch after the following statement executes: Cin >> x >> ch >> y;

In the C++ statement, cin.get(u); u must be a variable of type ____________________.

To use the manipulator setprecision,the program must include the header file ____________________.

It is a good idea to redefine cin and cout in your programs.

C++ provides a header file called ____________________,which is used for file I/O.

____ is a parameterized stream manipulator.

Suppose that outFile is an ofstream variable and output is to be stored in the file outputData.out.Which of the following statements opens the file outputData.out and associates outFile to the output file?

You can use the function getline to read a string containing blanks.

Suppose that x = 1565.683,y = 85.78,and z = 123.982.What is the output of the following statements? cout << fixed << showpoint; Cout << setprecision(3)<< x << ' '; Cout << setprecision(4)<< y << ' ' << setprecision(2)<< z << endl;

The function ____________________ returns the next character in the input stream; it does not remove the character from the input stream.

Suppose that x is an int variable,y is a double variable and ch is a char variable and the input is: 15A 73.2 Choose the values after the following statement executes: Cin >> x >> ch >> y;

To use a parameterized stream manipulator in a program,you must include the header file ____________________.

The extraction operator >> skips only all leading blanks when searching for the next data in the input stream.

In C++,the dot is an operator called the ____ operator.

On some compilers,the statements cin >> fixed; and cin >> scientific; might not work.In this case,you can use the statement ____________________ in place of cin >> fixed;.

Suppose that ch1 and ch2 are char variables and the input is: WXYZ What is the value of ch2 after the following statements execute? Cin >> ch1; Ch2 = cin.peek(); Cin >> ch2;

The manipulator ____________________ is used to output the value of an expression in a specific number of columns.

Suppose that x = 55.68,y = 476.859,and z = 23.8216.What is the output of the following statements? cout << fixed << showpoint; Cout << setprecision(3); Cout << x << ' ' << y << ' ' << setprecision(2)<< z << endl;

Suppose that x and y are int variables,z is a double variable,and the input is: 28 32.6 12 Choose the values of x,y,and z after the following statement executes: Cin >> x >> y >> z;