C++ 5 T/F questions need help! Syed needs help with C++ Programming as soon as p

Question

C++ 5 T/F questions need help!

Syed needs help with C++ Programming as soon as possible. Syed wrote:
Can you help me solve these few T/F questions?

96. The following function call agrees with its prototype:

swap(&x, &y); // x and y are of ‘int’ type

void swap(int * p, int * q);

T__ F__

97. To create an output stream, you must declare a stream object to
be of class ‘ifstream’.

T__ F__

98. The following statement is syntactically illegal because of
using \ instead of for file-folder specifier:

ifstream inputFile("c:\demofile.txt");

T__ F__

99. The following code-segment of ‘main()’ is syntactically legal:

#include <iostream> #include <fstream> using namespace std;
int main()
{
ofstream outputFile("c:\demofile.txt");

if(outputFile.is_open())
outputFile << "Bach " << "Beethoven " <<"Mozart ";
outputFile.close();
}

T__ F__

100. The following code-segment of ‘main()’ is syntactically incorrect:

#include <iostream>
#include <fstream>
#include <string>
using namespace std;

int main()
{
string name;

ifstream inputFile("c:\demofile.txt");

if(!inputFile)
{
cout << "File is not open ";
exit(EXIT_FAILURE);
}

while(inputFile >> name)
cout << name << endl;
}

T__ F__

Explanation / Answer

1)

swap(&x, &y); // x and y are of ‘int’ type

void swap(int * p, int * q);

Answer: True

2)

To create an output stream, you must declare a stream object to
be of class ‘ifstream’.

Reason:

you may or may not declare a stream object to
be of class ‘ifstream’.

Answer: False.

3)

using \ instead of for file-folder specifier:

ifstream inputFile("c:\demofile.txt");

Anser: True

4)

#include <iostream>
#include <fstream>
using namespace std;

int main()
{
ofstream outputFile("c:\demofile.txt");

if(outputFile.is_open())
outputFile << "Bach " << "Beethoven " <<"Mozart ";
outputFile.close();
}

Answer:True

5)

#include <iostream>
#include <fstream>
#include <string>
using namespace std;

int main()
{
string name;

ifstream inputFile("c:\demofile.txt");

if(!inputFile)
{
cout << "File is not open ";
exit(EXIT_FAILURE);
}

while(inputFile >> name)
cout << name << endl;
}

Answer:True

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