classes in cpp

Author: DeRoyace

Student1.cpp

@@ -0,0 +1,63 @@
+#include <iostream>
+#include <string.h>
+using namespace std;
+
+class Student1
+{
+private:
+    char name[40];
+    int mks[4], total;
+
+public:
+    void accept();
+    void display();
+
+    Student1()
+    {
+        strcpy(name, "\0");
+        for (int i = 0; i < 4; i++)
+            mks[i] = 0;
+        total=0;
+    }
+};
+
+void Student1::accept()
+{
+    char nm[2];
+    cout << "\nEnter your name: ";
+    // gets(name);
+    cin.getline(name, 40);
+    cout << "\nEnter the marks of 4 subjects: \n";
+    for (int i = 0; i < 4; i++)
+    {
+        cin >> mks[i];
+        total += mks[i];
+    }
+    cin.getline(nm, 2);
+}
+
+void Student1::display()
+{
+    cout << "\n Name : " << name;
+    cout << "\n Marks Obtained :  ";
+    for (int i = 0; i < 4; i++)
+        cout << mks[i] << ",";
+    cout << "\n Total marks = "<< total;
+}
+int main()
+{
+    Student1 s[3];
+    int i = 0;
+    for (i = 0; i < 3; i++)
+    {
+        s[i].accept();
+        printf("-----------------------------------------------------");
+    }
+
+    for (i = 0; i < 3; i++)
+    {
+        s[i].display();
+        printf("\n");
+    }
+    return 0;
+}

Student1.exe

@@ -0,0 +1,60 @@
+#include <iostream>
+using namespace std;
+
+class Student2
+{
+private:
+    char name[100];
+    double marks[3];
+    double total;
+
+public:
+    void display();
+
+    Student2()
+    {
+        cout << "\nEnter name of Student: ";
+        cin >> name;
+        for (int i = 0; i < 3; i++)
+        {
+            cout << "Enter marks of Subject " << i + 1 << " : ";
+            cin >> marks[i];
+        }
+        total = 0.0;
+    }
+
+    Student2(double mrks[3])
+    {
+        cout << "\nEnter name of Student: ";
+        cin >> name;
+        for (int i = 0; i < 3; i++)
+        {
+            marks[i] = mrks[i];
+        }
+    }
+
+};
+
+void Student2::display()
+{
+    cout << "\nStudent Name : " << name;
+    for (int i = 0; i < 3; i++)
+    {
+        total += marks[i];
+    }
+    cout << "\nTotal marks = " << total << endl;
+}
+
+int main()
+{
+    double mr[] = {80, 90, 100};
+    Student2 s1(mr);
+    s1.display();
+
+    cout << "\n------------------------------------------";
+
+    Student2 s2;
+    s2.display();
+
+    return 0;
+}

Student2.cpp

@@ -0,0 +1,83 @@
+//product name, quantity, code, price, instock, outstock;
+#include <iostream>
+using namespace std;
+
+class product
+{
+private:
+    char name[100];
+    long code;
+    double price;
+    int stocks, newstk;
+    int nitems;
+
+public:
+    void accept();
+    void display();
+    void instock();
+    void outstock();
+};
+
+void product::accept()
+{
+    cout << "\nEnter product name: ";
+    gets(name);
+    cout << "Enter product code: ";
+    cin >> code;
+    cout << "Enter product price: Rs. ";
+    cin >> price;
+}
+
+void product::display()
+{
+    cout << "\nProduct Name : " << name;
+    cout << "\nCode : " << code;
+    cout << "\nPrice : Rs. " << price;
+}
+
+void product::instock()
+{
+    stocks=0;
+    cout << "Enter number of new stocks: ";
+    cin >> newstk;
+    stocks += newstk;
+}
+
+void product::outstock()
+{
+    char ch;
+    display();
+    cout << "\nEnter no. of items required for customer : ";
+    cin >> nitems;
+
+    if (stocks >= nitems)
+    {
+        stocks -= nitems;
+        cout << "In stock !";
+        cout << "\nNo. of products left: " << stocks << endl;
+    }
+    else
+    {
+        cout << "\nOut of stock!" << endl;
+        cout << "\nNo. of products left: " << stocks << endl;
+    }
+    cout << "\n---------------------------------------------------------------------\n";
+    cout << "\nDo you want to continue for next customer (Press Y -YES or N -NO): ";
+    cin >> ch;
+    if (ch == 'Y' || ch == 'y')
+    {
+        instock();
+        outstock();
+    }
+    else
+        exit(0);
+}
+
+int main()
+{
+    product p;
+    p.accept();
+    p.instock();
+    p.outstock();
+    return 0;
+}