import java . util . Collections ;
import java . util . Set ;
import java . util . TreeSet ;
class Main {
public static void main ( String [ ] args ) {
String [ ] coins = { " Penny " , " nickel " , " dime " , " Quarter " , " dollar " } ;
Set < String > set = new TreeSet < String > ( ) ;
for ( int i = 0 ; i < coins . length ; i ++ ) {
set . add ( coins [ i ] ) ;
}
System . out . println ( Collections . min ( set ) ) ;
System . out . println ( Collections . min ( set , String . CASE_INSENSITIVE_ORDER ) ) ;
for ( int i = 0 ; i <= 10 ; i ++ ) {
System . out . print ( " - " ) ;
}
System . out . println ( " " ) ;
System . out . println ( Collections . max ( set ) ) ;
System . out . println ( Collections . max ( set , String . CASE_INSENSITIVE_ORDER ) ) ;
}
} |
Java技术网站 → 『 Java开发技术 』 → 『 Java编程技术专题 』 → Java入门实用代码：集合比较
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