Java错误:-"没有找到合适的方法来排序(Student[],j)"

Question

大家好，我是java编程新手，在练习的时候遇到了一个错误，请大家帮我解决我上面说的这个问题（标题）。我也把我的代码附在这里，请解决这个问题，先谢谢你:)

代码。

import java.util.Collections;
import java.util.Comparator;
class Student{
    public int marks;
    public String name;
    public Student(int marks, String name){
        this.marks = marks;
        this.name = name;
    }
    @Override
    public String toString(){
        return ("Name: " + this.name + " Marks: " + this.marks);
    }
}
public class j implements Comparator<Student>{
    @Override
    public int compare(Student o1, Student o2){
        if (o1.marks < o2.marks)
            return 1;
        else
            return -1;
    }
    public static void main(String[] args) {
        Student[] array = new Student[2];
        array[0] = new Student(10, "varun");
        array[1] = new Student(20, "gupta");
        Collections.sort(array, new j());
        for (Student i : array)
            System.out.println(i);
    }
}

Answer 1

你应该把Collections.sort(array, new j());改为Arrays.sort(array, new j())。