LinkedList链表list，基本用法

add()
get()
size()
remove(i)
remove(数据)
iterator()
addFirst() addLast()
getFirst() getLast()
removeFirst() removeLast()

package day20200818;

import java.util.Iterator;
import java.util.LinkedList;

public class Demo04 {
    
    
	
	public static void main(String[] args) {
    
    
		//LinkedList
		LinkedList<String> linkedlist = new LinkedList<String>();
		linkedlist.add("apple");
		linkedlist.add("banana");
		linkedlist.add("orange");
		System.out.println(linkedlist.get(2));
		System.out.println(linkedlist.size());
		linkedlist.add("bmw car");
		linkedlist.add("Benz car");
		linkedlist.add("audi car");
		linkedlist.remove(2);
		System.out.println(linkedlist);
		linkedlist.remove("apple");
		System.out.println(linkedlist);
		Iterator<String> iterator = linkedlist.iterator();
		while(iterator.hasNext()){
    
    
			System.out.println(iterator.next());
		}
		linkedlist.addFirst("xiaomi");
		linkedlist.addLast("xiaomi");
		System.out.println(linkedlist);
		linkedlist.removeFirst();
		linkedlist.removeLast();
		System.out.println(linkedlist);
		System.out.println(linkedlist.getFirst());
		System.out.println(linkedlist.getLast());
		
		
		
	}

}