学生类2

package helloworld;

public class StudentTest {
 public static void main(String[]args){
  Student student1=new Student();
  student1.studentNum=201400101001l;
  student1.classNum="一年级一班";
  student1.sex=true;
  student1.age=18;
  System.out.println("该同学的数据为"+student1.toString());
  student1.setage(19);
  System.out.println("该同学的数据为"+student1.toString());
 }
}