import?java.util.*;

public?class?Exercise21_01?{
??public?static?void?main（String[]?args）?{
????linkedHashSet?set1?=?new?linkedHashSet（Arrays.asList（
??????new?String[]{“George“?“Jim“?“John“?“Blake“?“Kevin“?“Michael“}））;

????linkedHashSet?set1Clone1?=?（linkedHashSet）set1.clone（）;
????linkedHashSet?set1Clone2?=?（linkedHashSet）set1.clone（）;

????linkedHashSet?set2?=?new?linkedHashSet（Arrays.asList（
??????new?String[]?{“George“?“Katie“?“Kevin“?“Michelle“?“Ryan“}））;

????set1.addAll（set2）;
????set1Clone1.removeAll（set2）;
????set1Clone2.retainAll（set2）;

????System.out.println（“The?union?of?the?two?sets?is?“?+?set1）;
????System.out.println（“The?difference?of?the?two?sets?is?“?+?set1Clone1）;
????System.out.println（“The?intersection?of?the?two?sets?is?“?+?set1Clone2）;
??}
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件???????9549??2013-05-15?16:52??chapter24\Exercise24_01.java

?????文件??????10292??2013-05-15?16:52??chapter24\Exercise24_02.java

?????文件???????8547??2013-05-15?16:52??chapter24\Exercise24_03.java

?????文件???????1837??2013-05-15?16:52??chapter24\Exercise24_04.java

?????文件????????608??2013-05-15?16:52??chapter24\Exercise24_05.java

?????文件????????983??2013-05-15?16:52??chapter24\Exercise24_06.java

?????文件???????5626??2013-07-25?06:56??chapter24\Exercise24_07.java

?????文件??????10881??2013-07-25?06:56??chapter24\Exercise24_08.java

?????文件??????14509??2013-07-25?06:56??chapter24\Exercise24_09.java

?????文件???????3188??2013-07-25?06:56??chapter24\Exercise24_10.java

?????文件???????7857??2013-07-25?06:56??chapter24\Exercise24_11.java

?????文件???????3286??2013-07-25?06:56??chapter24\Exercise24_12.java

?????文件????????943??2013-05-15?16:52??chapter24\Exercise24_13.java

?????文件???????1169??2013-05-15?16:52??chapter24\Exercise24_14.java

?????文件??????11605??2013-05-15?16:52??chapter25\Exercise25_01.java

?????文件???????4145??2013-09-11?18:57??chapter25\Exercise25_01Extra.java

?????文件???????4748??2013-09-11?20:59??chapter25\Exercise25_02Extra.java

?????文件???????9487??2013-05-15?16:52??chapter25\Exercise25_03.java

?????文件???????5443??2013-09-11?21:27??chapter25\Exercise25_03Extra.java

?????文件???????9675??2013-05-15?16:52??chapter25\Exercise25_04.java

?????文件???????9648??2013-05-15?16:52??chapter25\Exercise25_05.java

?????文件??????10439??2013-05-15?16:52??chapter25\Exercise25_06.java

?????文件???????7750??2013-05-15?16:52??chapter25\Exercise25_07.java

?????文件???????9507??2013-05-22?21:24??chapter25\Exercise25_08.java

?????文件???????9990??2013-05-22?19:57??chapter25\Exercise25_09.java

?????文件??????10040??2013-05-22?21:24??chapter25\Exercise25_10.java

?????文件???????4154??2013-07-25?06:56??chapter25\Exercise25_11.java

?????文件????????941??2013-05-23?09:12??chapter25\Exercise25_12.java

?????文件??????14810??2013-07-25?06:56??chapter25\Exercise25_13.java

?????文件???????3345??2013-05-15?16:52??chapter25\Exercise25_14.java

............此處省略143個文件信息