C++ Please !! 1. Predict the output of this code: #include <iostream> #include <

Question

C++ Please !!

1. Predict the output of this code:

#include <iostream>

#include <string>

using namespace std;

int main()

{

      string mascot = "Go Cougars";

      mascot.replace(4, 7, "alBaptist");

      mascot.append("!");

      mascot.insert(13, " Lancers");

      cout << mascot << endl;

    return 0;

}

2. Debug this code segment. There is only one error. Output should have two different randoms, the first is not seeded with time, the other is.

#include <iostream>

#include <cstdlib>   // Enables use of rand()

#include <ctime>     // Enables use of time()

using namespace std;

int main()

{

      //int randomNum = rand();

      cout << "Look at this semi-random number: ";

      cout << rand();

      cout << "." << endl;

      srand(time(0));

      cout << "Look at this actual random number: ";

      cout << rand

      cout << "."<< endl;

    return 0;

}

3. Debug this code segment. There is only one error. (Hint: this is a different type of error). Objective of this program is to get a sentence input from the user and display the sentence (including spaces).

#include "stdafx.h"

#include <iostream>

#include <string>

using namespace std;

int main()

{

      string output;

      cout << "Please input your sentence." << endl;

      cin >> output;

      cout << "Here is your sentence " << output << endl;

    return 0;

}

4. Predict the output of this program:

#include "stdafx.h"

#include <cmath>

#include <iostream>

using namespace std;

int main()

{

      float annualIncome = 20000.00, taxTotal;

      if (annualIncome < 20000) {

            taxTotal = annualIncome* 0.05;

            taxTotal = taxTotal * 100;

            taxTotal = floor(taxTotal) / 100;

            cout << "Your tax rate is 5% and your tax amount is " << taxTotal << endl;

      }

      else if (annualIncome < 100000.00) {

            taxTotal = annualIncome * 0.1;

            taxTotal = taxTotal * 100;

            taxTotal = floor(taxTotal) / 100;

            cout << "Your tax rate is 10% and your tax amount is " << taxTotal << endl;

      }

      else {

            taxTotal = annualIncome * 0.15;

            taxTotal = taxTotal * 100;

            taxTotal = floor(taxTotal) / 100;

            cout << "Your tax rate is 15% and your tax amount is " << taxTotal << endl;

      }

      return 0;

}

Explanation / Answer

Ans1. Output: Go CalBaptist Lancers!

Ans2. The correct program is

#include <iostream>

#include <cstdlib> // Enables use of rand()

#include <ctime> // Enables use of time()

using namespace std;

int main()

{

//int randomNum = rand();

cout << "Look at this semi-random number: ";

cout << rand();

cout << "." << endl;

srand(time(0));

cout << "Look at this actual random number: ";

cout << rand(); //Correction at this line. it should be a rand() function.

cout << "."<< endl;

return 0;

}

Ans3. Here is the correct code

#include <iostream>

#include <string>

using namespace std;

int main()

{

string output;

cout << "Please input your sentence." << endl;

getline(cin,output); //getline should be used for entering a sentence as white space will no more be assumed as line break

cout << "Here is your sentence " << output << endl;

return 0;

}

Ans4. Output: Your tax rate is 10% and your tax amount is 2000

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