[ 상속(***) ]
//사람클래스 : 이름/주민등록번호
class Person{
private String name;
private String jnum;//주민등록번호
public void setPer(String name,String jnum) {
this.name=name;
this.jnum=jnum;
}
public void printPer() {
System.out.println("이름:" + name);
System.out.println("주민등록번호:" + jnum);
}
}
//학생클래스 : 이름/주민등록번호/학번/전공
class Student extends Person{
private int stNum;//학번
private String major;//전공
public void setStu(int stNum,String major) {
this.stNum=stNum;
this.major=major;
}
public void printStu() {
System.out.println("학번:" + stNum);
System.out.println("전공:" + major);
}
public void setAll(String name,String jnum,int stNum,String major) {
setPer(name, jnum);
this.stNum=stNum;
this.major=major;
}
public void printAll() {
//System.out.println("이름:" + name);//에러 -> 부모의 private멤버는 접근할수 없음
//System.out.println("주민등록번호:" + jnum);
printPer();
System.out.println("학번:" + stNum);
System.out.println("전공:" + major);
}
}
public class Test06_상속 {
public static void main(String[] args) {
Student s=new Student();
// s.setPer("홍길동","1234567");
// s.setStu(100,"컴퓨터공학");
// s.printPer();
// s.printStu();
s.setAll("홍길동","1234567",100,"컴퓨터공학");
s.printAll();
}
}