College Activities

college/2 constructor.cpp

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+/* WAP to print area of the three rooms usin differenttypes of constrctors
+default -- parameterized constructor*/
+
+#include<iostream>
+using namespace std;
+
+class Area
+{
+    int length, breadth;
+public:
+    Area()
+    {
+        cout<<"Enter length and breadth of room 1"<<endl;
+        cin>>length>>breadth;
+        cout<<"Area of room 1 is "<<length*breadth<<endl;
+    }
+
+    Area(int l, int b)
+    {
+        cout<<"Area of room 2: "<<l*b<<endl;
+    }
+
+    Area(double l, double b)
+    {
+        cout<<"Area of room 3: "<<l*b;
+    }
+
+};
+
+int main(void)
+{
+    Area a;
+    Area ar(12,12);
+    Area are(1.2,2.5);
+}

college/Exception Handling/c2e3.cpp

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+/*WAP a program to input the age of the user. If it is above 18 print,
+ * "You are eligible to apply! do the following:
+ * a. Less than 0, "Invalid Age"
+ * b. Less than 18, "Want some years!"
+ * c. Greater than 30, "Not eligible"
+ * d. Greater than 200, "No such age!"
+ */
+
+#include<iostream>
+using namespace std;
+
+int main()
+{
+
+
+    return 0;
+}

college/Exception Handling/case1.cpp

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+/*
+ * case 1 -- One catch and one throw
+ *        -- three keywords -> try throw catch
+*/
+
+
+#include<iostream>
+using namespace std;
+
+int main()
+{
+    int a = 2, b = 0;
+    int c;
+
+    try
+    {
+        if(b==0)
+            throw 1;
+        else
+            c=a/b;
+            cout<<c<<endl;
+    }
+    catch(int x)
+    {
+        cout<<"Divided by 0 case";
+    }
+
+    return 0;
+}

college/Exception Handling/case2.cpp

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+/* multiple throws and multiple catches
+ *
+ * /*
+ * WAP to input only +ve numbers.
+ * If user inputs -ve number show   --  "Negative Numbers Not Allowed" as exception
+ * If user inputs 0 number show   --  "Zero Not Allowed" as exception
+ */
+
+
+
+#include<iostream>
+using namespace std;
+
+int main()
+{
+    int PN;
+    cout<<"Input any positive number"<<endl;
+    cin>>PN;
+    try
+    {
+        if(PN<0)
+            throw 1;
+        else
+            cout<<"You've entered: "<<PN;
+    }
+    catch(int x)
+    {
+        cout<<endl<<"Negative Numbers Not Allowed"<<endl<<endl;
+    }
+
+    try
+    {
+        if(PN==0)
+            throw 1.1f;
+    }
+    catch(float y)
+    {
+        cout<<endl<<"Zero Not Allowed"<<endl<<endl;
+    }
+
+    return 0;
+}

college/Exception Handling/caseg2.cpp

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+/*
+ * WAP to input only +ve numbers. If user inputs -ve number show
+ * "Negative Numbers Not Allowed" as exception
+ */
+
+
+
+#include<iostream>
+using namespace std;
+
+int main()
+{
+    int PN;
+    cout<<"Input any positive number"<<endl;
+    cin>>PN;
+    try
+    {
+        if(PN<0)
+            throw 0;
+        else
+            cout<<"You've entered: "<<PN;
+    }
+    catch(int x)
+    {
+        cout<<endl<<"Negative Numbers Not Allowed"<<endl<<endl;
+    }
+    return 0;
+}

college/Exception Handling/eg.cpp

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+#include<iostream>
+using namespace std;
+
+int main()
+{
+    int a = 2, b = 0;
+    int c;
+
+    try
+    {
+        if(b==0)
+            throw 1;
+        else
+            c=a/b;
+            cout<<c<<endl;
+    }
+    catch(int x)
+    {
+        cout<<"Divided by 0 case";
+    }
+
+    return 0;
+}

college/Lab 8 - Polymorphism/function overloading.cpp

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+#include<iostream>
+using namespace std;
+
+class fxnover
+{
+public:
+    void sum(int a,int b)
+    {
+        int sum = a+b;
+        cout<<"Sum: "<<sum<<endl;
+    }
+    void sum(double a, double b)
+    {
+        double sum = a+b;
+        cout<<"Sum: "<<sum<<endl;
+    }
+};
+
+int main()
+{
+    fxnover fo;
+    fo.sum(1,2);
+    fo.sum(1.2,2.1);
+    return 0;
+}

college/Lab 8 - Polymorphism/operator overloading.cpp

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+/*
+ * Note: can't overload these operators   ::  .  .*  ?:
+ * operator overloading is fuction of Polymorphism i.e OOP -- hence operator overloading isn't available in C
+*/
+
+
+#include<iostream>
+using namespace std;
+
+class Complex
+{
+    int real,imag;
+
+public:
+    Complex()
+    {
+        real = 0;
+        imag = 0;
+    }
+
+    Complex(int r, int i)
+    {
+        this->real = r;      //this
+        this->imag = i;
+    }
+    void show()
+    {
+        cout<<real<<"+"<<imag<<"i"<<endl;
+    }
+
+    Complex operator +(Complex o) //copy constructor , operator is a keyword
+    {
+        Complex c;
+        c.real = this->real + o.real;
+        c.imag = this->imag + o.imag;
+        return c;
+    }
+};
+
+int main()
+{
+    Complex c1(2,3);
+    cout<<endl<<"First Input"<<endl;
+    c1.show();
+
+    Complex c2(4,3);
+    cout<<endl<<"Second Input"<<endl;
+    c2.show();
+
+    cout<<endl<<"Sum"<<endl;
+    Complex c3;
+    c3 = c1 + c2;
+    c3.show();
+
+    return 0;
+}

college/all construtor.cpp

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+/*WAP to print sum and difference of two float numbers using all three types of constructors*/
+
+#include<iostream>
+using namespace std;
+
+class calc
+{
+        float a,b;
+public:
+    calc()
+    {
+        float x=28.34, y=22.21;
+        cout<<"Sum: "<<x+y<<endl<<"Difference: "<<x-y<<endl<<endl;
+    }
+    calc(float x, float y)
+    {
+        a=x;b=y;
+        cout<<"Sum: "<<a+b<<endl<<"Difference: "<<a-b<<endl<<endl;
+    }
+    calc(calc &ulate)
+    {
+        a=ulate.a;
+        b=ulate.b;
+        cout<<"Sum: "<<a+b<<endl<<"Difference: "<<a-b;
+    }   
+};
+
+int main()
+{
+    calc ua;
+    calc mn(12.2,1.22);
+    calc op(ua);
+    calc opq(mn);
+
+    return 0;
+}
+
+

college/c.cpp

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+#include <iostream>
+#include <string>
+#include <windows.h>
+// #include<windows.h>
+// Sleep(milliseconds);
+using namespace std;
+
+class k
+{
+    int num, n = 1;
+    string name[100];
+    static int counter;
+
+public:
+    // IT IS THE INPUT SECTION
+    void input()
+    {
+        // cout << "Press 1 to exit from the program" << endl;
+        cout << "Enter the name of the item " << endl;
+        for (int i = 0; i < n; i++)
+        {
+            Sleep(100);
+            cin >> name[i];
+            n++;
+            counter++;
+            cin >> num;
+            if (num == 0)
+            {
+                break;
+            }
+            else
+                continue;
+        }
+    }
+
+    // IT IS THE OUTPUT SECTION
+    void output()
+    {
+        cout << endl
+             << "The name of the stored items is" << endl;
+        for (int i = 0; i < counter; i++)
+        {
+            cout << name[i] << endl;
+        }
+    }
+    static void dc()
+    {
+        cout << "Total no of stored items is : " << counter << endl;
+    }
+};
+int k::counter;
+int main()
+{
+    k c;
+    c.input();
+    c.output();
+    k::dc();
+    return 0;
+}
+
+/*
+
+Yaha maile main kura chai user le input function ma ta jatti pani items haru halna milyo ni ta 
+Ani yesi user lai for eg:5 item halesi input function bata bahira niklina mann xa re haina tara 
+user le harek patak ko string input sang sangai num vanne varaible ko value ni magxa , so yesto huda user 
+le harek patak ma number ko value haliraknu parxa, which is not simple and easy for each repeattion of loop
+*/