Absolute C++ Chapter 3 Self-Test Exercise(3)

15.

Hello

Goodbye

One more time

Hello

End of program

16.

It will occur an error only there is 0 person to divide to ice-cream.

17. 

#include<iostream>
using namespace std;
void product(int num1,int num2,int num3);
int main()
{
　　cout<<"Give me 3 integers."
　　cin>>num1>>num2>>num3;
　　product(num1,num2,num3);
　　return 0;
}

void product(int num1,int num2,int num3)
{　　
　　pro=num1*num2*num3;
　　cout<<"the product of"<<num1<<","<<num2<<","<<num3<<" is "<<pro;

}

 

18.略

19.略

20.function definition

21.yes

22. Blackbox method

23.略

24.略

25.

{
int x1 = 1;// output in this column
cout << x1 << endl;// 1<new line>
{
cout << x1 << endl;// 1<new line>
int x2 = 2;
cout << x2 << endl;// 2<new line>
{
cout << x2 << endl;// 2<new line>
int x3 = 3;
cout << x3 << endl;// 3<new line>
}
cout << x2 << endl;// 2<new line>
}
cout << x1 << endl;// 1<new line>
}