组合

2 3int num;

4 5public void eat(){

6System.out.println("eat Fruit");

7} 8}

9 10public class Apple extends Fruit{

11 12@Override

13public void eat() { 14super.num = 10;

15System.out.println("eat " + num + " Apple");

16} 17

ݳᕟ

ᕟٌݳਫӧᵙቘᥴ҅੪ฎਖ਼੒᨝୚አᗝԭෛᔄӾݢܨ̶ᕟݳԞฎӞᐿ൉ṛᔄጱ॔አ௔ጱӞᐿොୗ̶ইຎ ֦మᦏᔄٍํๅग़ጱಘ઀ۑᚆ֦҅ᵱᥝᦕ֘Ӟݙᦾग़አᕟݳ҅੝አᖀಥ̶

1public class SoccerPlayer { 2

3private String name;

4private Soccer soccer;

5 6}

7 8public class Soccer {

9 10private String soccerName;

11}

դᎱӾ SoccerPlayer ୚አԧ Soccer ᔄ҅᭗ᬦ୚አSoccer ᔄ҅๶ᬡک᧣አsoccer Ӿጱં௔޾ොဩ̶

ᕟ޾ݳᖀಥฎํڦ܄ጱ҅ਙժጱԆᥝڦ܄ইӥ̶