Java .作业1

public class myClass
{
public static void main(String[] args)
{
Teacher.T();
Student Lawrence =new Student("Lawrence","01");
Lawrence.S();
}
}
class Teacher
{
public static void T()
{
System.out.println("Hello!");
}

}
class Student
{
String name="";
String ID="";
public void S()
{
System.out.println("My name is "+name);
}
public Student(String nam,String id)
{
name=nam;
ID=id;
}
}