Merge pull request #84 from UG-SEP/UG

Added Function overloading

Author: smv1999

OOPs/Polymorphism/function_overloading.cpp

@@ -0,0 +1,53 @@
+/*Suppose a teacher said to his student to create a class Display which have a
+  member function show through which it can print integer,float and string.So student
+  said OK sir i will use function overloading to do that..
+  Function Overloading: It is a way through which you can create more than one function
+  of same name but different argument or you can say that different signature */
+#include<iostream>
+#include<string.h>
+using namespace std;
+// creating Display class which will display integer,float and string.
+class Display
+{
+public:
+    //this show function will display you integer
+    void show(int n)
+    {
+       cout<<n<<"\n";
+    }
+    //this show function will display you float value
+    void show(float n)
+    {
+        cout<<n<<"\n";
+    }
+    //this show function will display you string value
+    void show(string n)
+    {
+        cout<<n<<"\n";
+    }
+};
+//driver code
+int main()
+{
+    //initialize variable
+    int n;
+    float a;
+    char *str;
+    //dynamically memory allocation
+    str=(char*)malloc(sizeof(char)*1000);
+    //initialize Display class variable d to access the show function
+    Display d;
+    cout<<"Enter a string, integer and float: ";
+    //taking inputs
+    cin.getline(str,1000);
+    cin>>n>>a;
+    //resizing str length
+    realloc(str,strlen(str)+1);
+    //calling Display member function show by passing string
+    d.show(str);
+    //calling Display member function show by passing integer
+    d.show(n);
+    //calling Display member function show by passing float
+    d.show(a);
+    return 0;
+}