import java.util.Scanner; class Student { private int id; private String name; private int age; private String gender; private double grade; public void setGrade(double grade) { this.grade = grade; } public Stude

这段代码依然不完整，但是我们可以看出这是一个学生类，包含了一些属性和方法。以下是一份完整的学生类代码示例，希望可以帮到您：

import java.util.Scanner;

class Student {
    private int id;
    private String name;
    private int age;
    private String gender;
    private double grade;

    public Student() {
        this.id = 0;
        this.name = "";
        this.age = 0;
        this.gender = "";
        this.grade = 0;
    }

    public Student(int id, String name, int age, String gender, double grade) {
        this.id = id;
        this.name = name;
        this.age = age;
        this.gender = gender;
        this.grade = grade;
    }

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

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

    public int getAge() {
        return age;
    }

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

    public String getGender() {
        return gender;
    }

    public void setGender(String gender) {
        this.gender = gender;
    }

    public double getGrade() {
        return grade;
    }

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

    public void input() {
        Scanner sc = new Scanner(System.in);

        System.out.print("请输入学号：");
        this.id = sc.nextInt();

        System.out.print("请输入姓名：");
        this.name = sc.next();

        System.out.print("请输入年龄：");
        this.age = sc.nextInt();

        System.out.print("请输入性别：");
        this.gender = sc.next();

        System.out.print("请输入成绩：");
        this.grade = sc.nextDouble();
    }

    public void output() {
        System.out.println("学号：" + this.id);
        System.out.println("姓名：" + this.name);
        System.out.println("年龄：" + this.age);
        System.out.println("性别：" + this.gender);
        System.out.println("成绩：" + this.grade);
    }
}

这是一个比较基础的学生类，包含了一些常见的属性和方法，例如构造函数、getter和setter方法、输入输出方法等。您可以在此基础上进行扩展和修改。