public void delByName(String name){
		Node node=new Node();
		int key=node.hashcode(name);	// generate hash code using node class

		node=bn.findDelNode(key);		//Traverse the tree and find the node(book object) return that object
		if(node!=null){
			boolean cnfrm=bn.deleteNode(node);	//send that object to delete
					if(cnfrm){
						BinTree.printOut(node);			//if deleted show the result
						System.out.println("The record is deleted");
					}
					else
						System.out.println("The record deleted");
		}else
			System.out.println("Sorry No book named "+name);
		
	}