5A_4_OOP

ConsoleApplication1/ConsoleApplication1.cpp

@@ -3,27 +3,43 @@
 
 using namespace std;
 
+class FunkcjaKwadratowa {
+    float a, b, c;
+    float delta;
+public:
+    void podajDane(float a, float b, float c) {
+        this->a = a;
+        this->b = b;
+        this->c = c;
+
+        this->delta = (b * b) - (4 * a * c);
+    }
+
+    void rownanie() {
+        cout << setprecision(2) << fixed;
+        if (delta < 0) cout << "Brak pierwiastkow" << endl;
+        else if (delta == 0) {
+            float x = -b / (2 * a);
+            cout << "1 pierwiastek: x = " << x << endl;
+        }
+        else {
+            float x1, x2;
+            float sq = sqrt(delta);
+            x1 = (-b - sq) / (2 * a);
+            x2 = (-b + sq) / (2 * a);
+            cout << "2 pierwiastki: x1 = " << x1 << ", x2 = " << x2 << endl;
+        }
+    }
+
+    void wypisz() {
+        cout << "Rownanie: " << a << "x^2 + " << b << "x + " << c << " = 0" << endl;
+    }
+};
+
 int main()
 {
-    cout << setprecision(2);
+    FunkcjaKwadratowa q;
-    float a, b, c;
+    q.podajDane(4, 4, 1);
-    cout << "Podaj a: ", cin >> a;
+    q.wypisz();
-    cout << "Podaj b: ", cin >> b;
+    q.rownanie();
-    cout << "Podaj c: ", cin >> c;
-
-    cout << "Rownanie: " << a << "x^2 + " << b << "x + " << c << " = 0" << endl;
-
-    float delta = (b * b) - (4 * a * c);
-    if (delta < 0) cout << "Brak pierwiastkow" << endl;
-    else if (delta == 0) {
-        float x = -b / (2 * a);
-        cout << "1 pierwiastek: x = " << x << endl;
-    }
-    else {
-        float x1, x2;
-        float sq = sqrt(delta);
-        x1 = (-b - sq) / (2 * a);
-        x2 = (-b + sq) / (2 * a);
-        cout << "2 pierwiastki: x1 = " << x1 << ", x2 = " << x2 << endl;
-    }
 }