J260713/授课代码/c260730/src/course/Demo01.java

package course;

import java.util.ArrayList;
import java.util.List;

/**
 * @author WanJl
 * @version 1.0
 * @title Demo01
 * @description List.of方法
 * @create 2026/7/30
 */
public class Demo01 {
    /*
        List接口的特殊方法
        List.of()
        ....... 系列方法

     */
    public static void main(String[] args) {
        //
        List<String> list1=new ArrayList<>();
        //JAVA9之后，为List提供了一系列的of方法，用来快速创建一个List列表集合对象，而且是不可改变的集合。
        List<String> list = List.of("张三","李四","wangwu");
        //list.add("张三");
        //list.set(1,"晚五");
        for (int i = 0; i < list.size(); i++) {
            System.out.println(list.get(i));
        }

        Student s1=new Student("张三",20,"S001");
        Student s2=new Student("张三2",20,"S002");
        Student s3=new Student("张三3",20,"S003");
        Student s4=new Student("张三4",20,"S004");
        List<Student> studentList = List.of(s1, s2, s3, s4);

        for (int i = 0; i < studentList.size(); i++) {
            System.out.println(studentList.get(i));

        }
        s2.setName("李四");
        for (int i = 0; i < studentList.size(); i++) {
            System.out.println(studentList.get(i));

        }
        studentList=List.of();

    }

}