linkedList

import java.util.LinkedList;
import java.util.List;

public class LinkedL {
    public static void main(String[] args) {
        //LinkedList
        //1--创建对象
        LinkedList linkedList=new LinkedList();
        //2--调用方法
        //add(是list的子类所以说还是有序，并且可以重复的)
        linkedList.add("张三");
        linkedList.add(123);
        linkedList.addFirst("李四");//指定从第一位置开始添加
        linkedList.addLast("吴大");
        System.out.println(linkedList);
        LinkedList linkedList1=new LinkedList(linkedList);
        System.out.println(linkedList1);
        //remove
        linkedList1.remove(1);
        linkedList1.remove("张三");
        linkedList1.removeFirst();
        System.out.println(linkedList1);
        System.out.println("00000000000");
        //set
        linkedList1.set(0,"张三");//前面是指定的位置，后面是要修改成的内容
        //get
        System.out.println(linkedList1.get(1));//下标对应的内容
        System.out.println(linkedList1.getFirst());
        System.out.println(linkedList1.getLast());//获取最后位置的内容
        System.out.println(linkedList1.size());
        System.out.println(linkedList1.isEmpty());
        System.out.println(linkedList1.contains("吴大"));

    }
}