Java进行编译时出现：进行语法解析时时已达到文件结尾，是什么意思？

class Person{
private String name;
private String age;
private String school;
public Person(String name,String age,String school){
this.name=name;
this.age=age;
this.school=school;
}
public String getInfo(){
return "姓名："+name+"，年龄："+age+"，学校："+school;
};
public class Student extends Person{
public Student(String name,String age,String school){
super(name,age,school);
}
public static void main(String args[]){
Student S=new Student("小明",22,"苏州大学");
System.out.println(S.getInfo());
}
};

class Person{
private String name;
private int age;
private String school;
public Person(String name,int age,String school){
this.name=name;
this.age=age;
this.school=school;
}
public String getInfo(){
return "姓名："+name+"，年龄："+age+"，学校："+school;
}
}
public class Student extends Person{
public Student(String name,int age,String school){
super(name,age,school);
}
public static void main(String args[]){
Student S=new Student("小明",22,"苏州大学");;
System.out.println(S.getInfo());
}
}

这是我改过的程序。 Student S=new Student("小明",22,"苏州大学");;的年龄传递的是int值，你定义的时候是字符串。至于为什么出现你上述的错误，我不太理解。不过你的程序本身就有错误

你好！ 注意你的大括号！！！！！！！！！！ 如有疑问，请追问。