String Class

1: Which method do we use to append more than one character at a time?

A. append

B. operator+=

C. data

D. both a & b

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2

What is the output of this program?

1.
   #include 
2.
   #include 
3.
   using namespace std;
4.
   int main ()
5.
   {
6.
       string str ("Ubuntu");
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       cout << str.capacity();
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       cout << str.max_size();
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       return 0;
10.
   }

A. 61073741820

B. 51073741820

C. 6 and max size depends on compiler

D. none of the mentioned

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3

What is the output of this program?

1.
    #include 
2.
    #include 
3.
    using namespace std;
4.
    int main ()
5.
    {
6.
        string str ("Microsoft");
7.
        for (size_t i = 0; i < str.length();)
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        {
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            cout << str.at(i-1);
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        }
11.
        return 0;
12.
    }

A. M

B. Microsoft

C. Micro

D. runtime error

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4

What is the output of this program?

1.
    #include 
2.
    #include 
3.
    using namespace std;
4.
    int main ()
5.
    {
6.
        string str ("steve jobs is legend");
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        string::iterator it;
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        str.erase (str.begin()+ 5, str.end()-7);
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        cout << str << endl;      
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        return 0;
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    }

A. jobs is

B. steve legend

C. steve

D. none of the mentioned

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5

What is the output of this program?

1.
   #include 
2.
   #include 
3.
   using namespace std;
4.
   int main ()
5.
   {
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       string str ("nobody does like this");
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       string key ("nobody");
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       size_t f;
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       f = str.rfind(key);
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       if (f != string::npos)
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           str.replace (f, key.length(), "everybody");
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       cout << str << endl;
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       return 0;
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   }