idea快速生成的代码

import java.util.Objects;

public class Student {
    private String sid;
    private String name;
    private int age;
    private String address;

    public Student(String sid) {
        this.sid = sid;
    }

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

    public String getSid() {
        return sid;
    }

    public void setSid(String sid) {
        this.sid = sid;
    }

    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 getAddress() {
        return address;
    }

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

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;
        Student student = (Student) o;
        return Objects.equals(sid, student.sid);
    }

    @Override
    public int hashCode() {
        return Objects.hash(sid);
    }

    @Override
    public String toString() {
        return "" +
                "学号：'" + sid + '\'' +
                ", 姓名：'" + name + '\'' +
                ", 年龄：" + age +
                ", 地址：'" + address + '\'';
    }
}