C++

 

1. What is the output of the following program?

 

#include <iostream>

using namespace std;

int main()

{

     int x1, x2, i, j, k, y, z;

     float f;

    x1 = 1;

    x2 = 1;

    y = 5 + x1--;

    z = 5 + ++x2;

    i = 6 % 4;

    j = 1;

    j += j + 3;

    k = 25 / 2;

    f = (float)((2 / 5) * k);

 

    cout<<"x1 is "<<x1<<"nx2 is "<<x2<<"ni is "

           <<i<<"nj is "<<j<<"nk is "<<k<<"nk is "

           <<k<<"ny is "<<y<<"nz is "<<z<<"nf is "<<f<<endl;

     return 0;

}

 

 

 

2.Explain when a Switch statement may be more appropriate than an if/else statement and provide a code example.

 

 

 

3.Using a loop, write a program that adds and displays the total of all even integers from 1 to 10.