1. Consider the following declarations:

Ifstream datain;

Ofstream dataout

What statement is valid to open an output file named output.txt?

1. Output.txt.open (ofstream);
2. Ofstream.open (output,txt);
3. Output.open (dataOut);
4. dataOut.open (output.txt);

2. Suppose num1 and num2 are int variable and symbol is a char variable. Consider the following input 35 24 $ A. what value (if any) is assigned to num1, num2, and symbol after statement executes? Cin >> num1>>symbol>>num2;
   1. Num1=35, symbol is assigned a whitespace, num2=24
   2. Num1=35, symbol = 24, num2 = $
   3. Num1=35, symbol 2, num2 = 4
3. Which header file must be included to use the manipulators fixed and showpoint? (Hint: these 2 manipulators do not require any parameter)

1. Iomanip
2. Cmath
3. iostream

4. In which of the following statements the computer doesnt have to evaluate the right (2^nd) expression (due to short-circuit evaluation)?

1. (15>=16) || (A==A)
2. (15>=16)&&(A==A)
3. (16>=15)&&(A==B)
4. (16,15) || (A==B)