Initial commit

c++/Others/Implementing Queue as a Class.cpp

@@ -0,0 +1,90 @@
+Implementing Queue as a Class
+
+# include<iostream.h>
+# include<conio.h>
+# define SIZE 20
+
+class queue
+{
+	int a[SIZE];
+	int front;
+	int rear;
+public:
+	queue();
+	~queue();
+	void insert(int i);
+	int remove();
+	int isempty();
+	int isfull();
+};
+
+queue::queue()
+{
+front=0;
+rear=0;
+}
+queue::~queue()
+{
+delete []a;
+}
+void queue::insert(int i)
+{
+if(isfull())
+{
+	cout<<"
+
+******
+Queue is FULL !!!
+No insertion allowed further.
+******
+";
+	return;
+}
+a[rear] = i;
+rear++;
+}
+int queue::remove()
+{
+if(isempty())
+{
+	cout<<"
+
+******
+Queue Empty !!!
+Value returned will be garbage.
+******
+";
+	return (-9999);
+}
+
+return(a[front++]);
+}
+int queue::isempty()
+{
+if(front == rear)
+	return 1;
+else
+	return 0;
+}
+int queue::isfull()
+{
+if(rear == SIZE)
+	return 1;
+else
+	return 0;
+}
+
+void main()
+{
+clrscr();
+queue q;
+q.insert(1);
+q.insert(2);
+cout<<"
+"<<q.remove();
+cout<<"
+"<<q.remove();
+cout<<"
+"<<q.remove();
+getch();
+}