一道Java编程题

public class Person {

private static String name;

private static String sex;

private static int age;

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

public void print() {
System.out.print("名字：" + name + " 性别：" + sex + " 年龄：" + age + " ");
}
}

public class Student extends Person {

private static String school;

private static String department;

private static String studentno;

Student(String name, int age, String school, String department,
String studentno) {
super(name, age);
this.school = school;
this.department = department;
this.studentno = studentno;
}

public void print() {
super.print();
System.out.println("学校是：" + school + " 系是：" + department + " 学号是："
+ studentno);
}

}

index[0]=1;
index[1]=3;
index[2]=0;
index[3]=2;
int ref;}
这个}应该是多余的，你调试一下，在这里打个断点，运行会报错的。