Java 无法将 From Student 转换为 Student[]

Question

嘿伙计们，我可以得到一些关于这个java项目的帮助吗我的问题是这一行Student s = new Student(r.getChar(),r.getChar(),r.getNum(),r.getNum());我想让它成为一个数组，但如果我尝试替换 Student s 惠特 Student s[i]= new Student(r.getChar()........) 我收到一条错误消息，告诉我无法从 Student 转换对于 Student[]，我需要一个解决方案，使其成为一个数组

不介意 r.getChar()

public class Student extends Person {
  private int grade;
  public Student(String name, String address, int age, int grade) {
    super(name, address, age);
    this.grade = grade;
  }

  public void setGrade(int grade){
    this.grade = grade;
  }

  public int getGrade(){
    return grade;
  }
}

public class Person{
  private String name;
  private String address;
  private int age ;

  public Person(String name,String address,int age){
    this.name = name;
    this.address = address;
    this.age = age;
  }

  public void setName(String name){
    this.name = name;
  }

  public void setAddress(String address){
    this.address = address;
  }

  public void setAge(int age){
    this.age = age;
  }

  public String getName(){
    return name;
  }

  public String getAddress(){
    return address;
  }

  public int getAge(){
    return age;
  }
}

Answer 1

以下是创建 Student 数组的方法:

Students allStudents[] = new Students[x];

这将创建一个由 x 元素组成的数组，所有元素都初始化为 null。然后，您将在循环或其他内容中初始化每个元素:

allStudents[i] = new Student(...);