我不知道哪里错了。。

import java.util.Scanner;

public class NewClass {
  Student student = new Student();
  int n;
  public void init(Student student) {
  System.out.println("How many students do you want to input?");
  Scanner str = new Scanner(System.in);
  n = str.nextInt();
  student.scores = new int[n];
  student.number = new String[n];
  student.name = new String[n];
  System.out.println("Please input " + n + " students' number,name and scores");
  Scanner string = new Scanner(System.in);
  Scanner string1 = new Scanner(System.in);
  Scanner string2 = new Scanner(System.in);
  for (int i = 0; i < n; i++) {
  student.number[i] = string.nextLine();
  student.name[i] = string1.nextLine();
  student.scores[i] = string2.nextInt();
  }
  sort(student);
  }

  public void sort(Student student) {

  String numbertemp, nametemp;
  int scorestemp;
  for (int i = 0; i < n - 1; i++) {
  for (int j = 1; j < n; j++) {
  if (
  student.scores[i] < student.scores[j]) {
  numbertemp = student.number[i];
  student.number[i] = student.number[j];
  student.number[j] = numbertemp;
  nametemp = student.name[i];
  student.name[i] = student.name[j];
  student.name[j] = nametemp;
  scorestemp = student.scores[i];
  student.scores[i] = student.scores[j];
  student.scores[j] = scorestemp;
  }
  }
  }
  output(student);
  }

  public void output(Student student) {
  for (int i = 0; i < n; i++) {
  System.out.println(student.name[i]);
  }
  }

  public static void main(String args[]) {
  NewClass application = new NewClass();

  application.init(student);
  }
}
class Student{
   
  String number[];
  String name[];
  int scores[];
  Student(String number[],String name[],int scores[]){
  this.name = name;
  this.number = number;
  this.scores = scores;
  }

  Student() {
  throw new UnsupportedOperationException("Not yet implemented");
  }
}

------解决方案--------------------
刚运行了一下你的代码发现不能运行 给你改了一下可以运行了 希望对你有帮助
import java.util.Scanner;

public class NewClass {
Student student = new Student();
int n;
public void init() {//这里给你改了 这里不能再定义student了
System.out.println("How many students do you want to input?");
Scanner str = new Scanner(System.in);
n = str.nextInt();
student.scores = new int[n];
student.number = new String[n];
student.name = new String[n];
System.out.println("Please input " + n + " students' number,name and scores");
Scanner string = new Scanner(System.in);
Scanner string1 = new Scanner(System.in);
Scanner string2 = new Scanner(System.in);
for (int i = 0; i < n; i++) {
student.number[i] = string.nextLine();
student.name[i] = st