Exam 3: Input/Output

Suppose that ch1 and ch2 are char variables,alpha is an int variable,and the input is: A 18 What are the values after the following statement executes? cin.get(ch1); cin.get(ch2); cin >> alpha;

The following statements will result in input failure if the input values are not on a separate line.(Assume that x and y are int variables.) cin >> x; cin >> y;

Suppose that x is an int variable and y is a double variable and the input is: 10 20.7 Choose the values after the following statement executes: cin >> x >> y;.

Suppose that x = 25.67,y = 356.876,and z = 7623.9674.What is the output of the following statements? cout << fixed << showpoint; Cout << setprecision(2); Cout << x << ' ' << y << ' ' << z << endl;

Entering a char value into an int variable causes serious errors,called input failure.

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.get(ch1); cin.putback(ch1); cin >> ch2;

Suppose that ch1,ch2,and ch3 are variables of the type char and the input is: A B C Choose the value of ch3 after the following statement executes: Cin >> ch1 >> ch2 >> ch3;

Consider the following program segment. Ifstream inFile; //Line 1 Int x,y; //Line 2 ... //Line 3 InFile >> x >> y; //Line 4 Which of the following statements at Line 3 can be used to open the file progdata.dat and input data from this file into x and y at Line 4?

C++ comes with a wealth of functions,called ____________________ functions,that are written by other programmers.

Suppose that x is an int variable,ch is a char variable,and the input is: 276. Choose the values after the following statement executes: Cin >> ch >> x;