单向链表

package Linked;

import java.util.HashSet;


public class LinkedTable {
	
	int size;
	Node head =null;
	Node tail =null;
	public void add(int i){
		Node n =new Node(i,null);
		if(head==null){
		 	head = n;
		 	tail = n;
		}else{
			tail.setNext(n);
			tail = n;
			size++;
		}
	}
	public int size(){
		return size;
	}
	public String visit(){
		String i = "";
		Node next = head;
		 while(next!=null){
		  i = i+next.getData()+"--";
		  next = next.getNext();
		 
		}
		 return i;
		
	}
}


class Node{
	int data;
	Node next;
	public Node(int data, Node next) {
		super();
		this.data = data;
		this.next = next;
	}

	
	public int getData() {
		return data;
	}
	public void setData(int data) {
		this.data = data;
	}
	public Node getNext() {
		return next;
	}
	public void setNext(Node next) {
		this.next = next;
	}

}