Putting It All Together
We have now successfully learned all about operators, conditions, and loops in C++. Let's take this opportunity to revisit all we've learned while also diving into a hypothetical financial situation.
Suppose you have an investment with a fixed return rate and you wish to see how much your investment grows after six years -- we can simulate this using a for
loop. With if-else
statements, we can indicate whether the investment has doubled or not.
Furthermore, we can simulate trading activities, such as executing three trades with a do-while
loop which guarantees at least one execution of the loop. This is beneficial in situations such as when the market opens and we want to execute at least one trade.
Lastly, for decision-making processes we can use switch-case
statements. For instance, when our automated trading system has various options like 'buying stocks', 'selling stocks', or 'waiting'. Based on the available data, our system can use a case structure to decide on the action to take.
Understanding and effectively using these fundamental constructs of C++ such as operators, conditions, and loops is the key to creating efficient and flexible programs. Especially in the context of real-world use cases like finance or AI, these tools become incredibly valuable.
In this tutorial we've built a sound foundation. Our next steps should be diving deeper into C++, exploring more complex data structures and advanced features of the language.
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}
using namespace std;
int main() {
int investment = 500;
// compound interest calculation using for loop
for(int i = 0; i < 6; i++) {
investment += investment * 0.05;
}
// investment boundary check using if-else
if(investment > 1000) {
cout << "Investment doubled\n";
} else {
cout << "Investment not doubled yet\n";
}
// simulating trading using do-while
int count = 0;
do {
cout << "Trade " << count << " executed\n";
count++;
} while (count < 3);
// Decision making using switch-case
int option = 2;
switch(option) {
case 1: cout << "Buying stocks\n"; break;