Import other class from other class file

Question

let say, i got class student in the file name "student.class".
my main program is school.class.
how to import student.class into school.class so i can use student class.?
what is the directory i had to store the 2 file?

Answer 1

School.java:
class School {
    Student a, b, c;
    public static void main(String[] args) {
        a = new Student("fred","foobar");
        b = new Student("fred","barbaz");
        c = new Student("fred","bazqux");
        System.out.println("Student a is "+a.name+" "+a.surname);
        System.out.println("Student b is "+b.name+" "+b.surname);
        System.out.println("Student c is "+c.name+" "+c.surname);
class Student {
    String name, surname;
    public Student(String nam, String sur) {
        name = name;
        surname = sur;
}