java语言编写一个学生类，属性有学号，姓名，性别。加上空参，全参，get,set方法，重写eques

class Student {
private String stuNo;
private String name;
private String gender;

public Student() {}

public Student(String stuNo, String name, String gender) {
this.stuNo = stuNo;
this.name = name;
this.gender = gender;
}

public String getStuNo() {
return stuNo;
}

public void setStuNo(String stuNo) {
this.stuNo = stuNo;
}

public String getName() {
return name;
}

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

public String getGender() {
return gender;
}

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

@Override
public boolean equals(Object obj) {
if (obj == null) {
return false;
}
if (obj == this) {
return true;
}
if (obj instanceof Student) {
Student student = (Student) obj;
return student.stuNo.equals(this.stuNo);
}
return false;
}
}