Lesson 15 Source Code

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Lesson 15 Video

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Lesson 15: Increment and Decrement part 1

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Examples of incrementing and decrementing


The vale on the right of the assignment operator ("=") will ALWAYS be the new value of the variable that is on the left hand sign of the assignment operator. 

(Don't forget there can be only one variable on the left side of the assignment operator.
#include <iostream>
using namespace std;

int main()
{
 int rocks=5, coins=71;
 coins = rocks + 3;
 cout << coins;
 cin.get();
 return 0;
}


The same rules still apply... The vale on the right hand side of the assignment operator will be the new value of the left hand side
#include <iostream>
using namespace std;

int main()
{
 int rocks=5, coins=71;
 coins = coins + 3;
 cout << coins;
 cin.get();
 return 0;
}


Here is a larger example of how to apply the increment and decrement technique.
#include <iostream>
using namespace std;

int main()
{
 int rocks=5, coins=71;
 char choice = 'b';
 cout << "would you like to buy a rock for 1 coin? ";
 cin >> choice;
 if(choice == 'y')
 {
  coins = coins - 1;
  rocks = rocks + 1;
  cout << "Thankyou!";
 }
 else
 {
  cout << "Thats too bad";
 }
 cout << coins;
 system("pause");
 return 0;
}