student_ex.java

来自「非常好的JAVA学习资料」· Java 代码 · 共 23 行

class Person
{ protected String name;
  protected int age;
  protected String address;
  public void setPerson(String na,int ag,String ad)
  {name=na;age=ag;address=ad;}
 }
class Student extends Person
{ String address;
  String department;
  public void setStudent(String na,int ag,String ad,String ad1,String de)
  {setPerson(na,ag,ad);
   address=ad1;
   department=de;}}
public class Student_ex
{public static void main(String args[])
 {Person pe=new Person();
  Student st=new Student();
  pe.setPerson("Tom",20,"121 North street");
  st.setStudent("Jhon",19,"234 South street","336 West Street","Computer");
  System.out.println("The object of Person:  "+pe.name+","+pe.age+","+pe.address);
  System.out.println("The object of Student: "+st.name+","+st.age+","+st.address+","+st.department);}
}