C++ loyihalari
Loyihalar va amaliy ilovalar
C++ bo‘yicha bilimlaringizni real loyihalarda qanday qo‘llashni o‘rganing.
Bu bo‘limda darslik davomida o‘rgangan imkoniyatlaringizdan foydalanib kichik ilovalar yaratamiz.
Nega loyihalar yaratish kerak?
Loyihalar C++ tilini o‘rganishning muhim qismidir. Kichikdan boshlang va asta-sekin ko‘proq imkoniyatlar qo‘shing:
- Haqiqiy dasturlar qanday tuzilganini tushuning
- Tushunchalarni (masalan, funksiyalar, sikllar, fayllar bilan ishlash) birgalikda qo‘llashni mashq qiling
- Nosozliklarni tuzatish va muammolarni hal qilish ko‘nikmalaringizni oshiring
- Ish suhbatlari va tegishli mashqlarga tayyorlaning
Maslahat: Qancha ko‘p yaratsangiz, shuncha yaxshi tushunasiz.
Loyiha misollari
Qiziqarli C++ loyihalariga quyidagilarni misol qilish mumkin:
- Talabaning o‘rtacha bahosini hisoblash
- Oddiy kalkulyator
- Manzillar kitobi
- Vazifalar ro‘yxati
- Sonni topish o‘yini
- Viktorina o‘yini
Loyiha: talabaning o‘rtacha bahosini hisoblash
Keling, bir nechta baho asosida talabaning o‘rtacha bahosini hisoblaydigan dastur yarataylik.
Dastur foydalanuvchidan 1 tadan 5 tagacha baho kiritishni so‘raydi va o‘rtachasini hisoblaydi. So‘ng o‘rtacha baho va unga mos harfli baho (A dan F gacha) ko‘rsatiladi:
Misol
// This function returns a letter grade based on the average of a student
char gradeFunction(double avg) {
if (avg >= 90) return 'A';
else if (avg >= 80) return 'B';
else if (avg >= 70) return 'C';
else if (avg >= 60) return 'D';
else return 'F';
}
int main() {
int count; // Number of grades the user wants to enter
double sum = 0, grade; // Sum stores total grades, grade holds each input
// Ask the user to enter total grades between 1 to 5
cout << "How many grades (1 to 5)? ";
cin >> count;
// Validate that count is between 1 and 5
if (count < 1 || count > 5) {
cout << "Invalid number. You must enter between 1 and 5 grades.\n";
return 1; // Exit
}
// Loop to collect each grade
for (int i = 1; i <= count; i++) {
cout << "Enter grade " << i << ": ";
cin >> grade;
sum += grade;
}
// Calculate the average score
double avg = sum / count;
// Display numeric average
cout << "Average: " << avg << "\n";
// Display letter grade
cout << "Letter grade: " << gradeFunction(avg) << "\n";
return 0;
}
Natija namunasi:
How many grades (1 to 5)? 3
Enter grade 1: 85
Enter grade 2: 91
Enter grade 3: 78
Average: 84.6667
Letter grade: B
Qo‘llanilgan asosiy tushunchalar: sikllar, funksiyalar, shartlar, kiritilgan ma’lumotlarni qayta ishlash va oddiy mantiq.
Amaliy topshiriq
O‘z loyihalaringizni yaratib ko‘ring. Masalan, quyidagilarni bajaradigan dastur yozing:
- Ismingizni so‘raydi
- Yoshingizni so‘raydi
- Ekranga chiqaradi:
Hi <name>! You will turn <age+1> next year.
CodeBlocks yoki shunga o‘xshash istalgan C++ IDE’sini oching va mustaqil tajriba qilib ko‘ring!
Kichikdan boshlang. Har safar bitta imkoniyat qo‘shing. Tez-tez sinab ko‘rishni unutmang!
Maslahat: Shuningdek, Hayotiy misollar sahifamizda oddiy loyihalar to‘plamini jamlaganmiz.
W3Schools Pathfinder
Yutuqlaringizni kuzating – bu bepul!