Stack using Array

Data Structures/Stack and Queue /stackarray.cpp

@@ -0,0 +1,80 @@
+#include<iostream.h>
+#include<conio.h>
+#include<stdlib.h>
+class stack
+{
+	     int stk[5];
+	     int top;
+      public:
+	     stack()
+	      {
+		top=-1;
+	       }
+	     void push(int x)
+	      {
+		 if(top >  4)
+		       {
+			   cout<<"Stack OverFlow.";
+			   return;
+		       }
+		 stk[++top]=x;
+		 cout <<"Inserted element is: " <<x;
+	       }
+	     void pop()
+	       {
+		  if(top <0)
+		   {
+			 cout <<"Stack UnderFlow.";
+			 return;
+		    }
+		    cout <<"Deleted element is: " <<stk[top--];
+		}
+	     void topp()
+	     {
+		 {
+		  if(top <0)
+		   {
+			 cout <<"Stack UnderFlow.";
+			 return;
+		    }
+		    cout <<"Element at the top is : " <<stk[top]<<endl;
+		}
+	     }
+	     void display()
+	       {
+		   if(top<0)
+		    {
+			    cout <<"Stack is Empty.";
+			    return;
+		    }
+		    for(int i=top;i>=0;i--)
+			cout <<stk[i] <<" ";
+		}
+};
+void main()
+{
+     clrscr();
+     int ch;
+     stack st;
+     cout<<"*****Stack Implementation using array*****";
+     while(1)
+	{
+	     cout<<"\n1.Push  2.Pop  3.Top  4.Display  5.Exit\nEnter your choice: "<<endl;
+	     cin>>ch;
+	     switch(ch)
+	      {
+	       case 1:  cout <<"\nEnter the element to be added: "<<endl;
+			cin>>ch;
+			st.push(ch);
+			break;
+	       case 2:  st.pop();
+			break;
+	       case 3:  st.topp();
+			break;
+	       case 4:  st.display();
+			break;
+	       case 5:  exit(0);
+	       }
+	 }
+    getch();
+}