Question

what is the output values printed by the following code? You need to explain step by step how each printed value is calculated. #include <iostream> using namespace std; int m = 0; void SampleMethod (int); int SampleMethod(); void increase(); int main() { int j = 9; SampleMethod(j); cout << j<<endl; return 0; w Y == void SampleMethod(int i) { if (j%2 1) cout << SampleMethod() <<endl; else cout << j << " "; m = m + second digit of your student number +2; cout <<m << endl; j = j+1; Y

Id: 40100885

in c++

output text please

thanks!

Answer 1

#include <iostream>
using namespace std;

int m = 0;
void SampleMethod(int);
int SampleMethod();
void increase();

int main()
{
  int j=9;
  SampleMethod(j);
  cout << j <<endl;
  return 0;
}

// This function can not return any value because the return type is void
void SampleMethod(int j){
  if(j%2 == 1)
    cout << SampleMethod() << endl;   //print the value return by SampleMethod()
  else
    cout << j << " ";
  m = m + 2;
  cout << m << endl;
  j = j+1;
}

// This function return the value because the return type is int
int SampleMethod(){
  int j=10;
  cout << j*3 <<endl;   // it print 30
  increase();   // call the increase() function
  return j + 3;
}

void increase(){
  m = m + 5;
}

Output :-
30
13
7
9

Explanation:-

Execution is starts from main method. In main method j = 9 then we call SampleMethod( 9 ) ; function  
In SampleMethod(int j) check if( 9 % 2 == 1 ) is true it means that cout << SampleMethod() << endl; statement is executed and the value return by SampleMethod() is printed.
In SampleMethod() j = 10 ; cout << j*3 <<endl; means 30 is printed and after that increase() function is call.
In increase() m = m + last digit of your student id ; and the last digit of your student id = 5 because  Id: 40100885 given so m = 5;
After that in SampleMethod() last statement return j + 3; is executed , so it will return 13 to SampleMethod(int j) and
With the help of this statement cout << SampleMethod() << endl; 13 is printed.
After that In SampleMethod(int j) this statement m = m + second digit of your student number + 2; is executed and the value of second digit of your student number is 0 from Id: 40100885 and m = 5+2=7 and 7 is printed with the help of cout << m << endl;

After executing the SampleMethod(j) in main method , the statement cout << j <<endl; is executed and 9 is printed.

So the output is :-
30
13
7
9