Delete characters with the fewest occurrences in a string

Source: Internet
Author: User

1 mport java.util.Collection;2 Importjava.util.Collections;3 ImportJava.util.HashMap;4 ImportJava.util.Map;5 ImportJava.util.Scanner;6 7 8  Public classMain9 {Ten  One       Public Static voidMain (string[] args) A{//abcdabcddd -StringBuilder res =NewStringBuilder (256); -Scanner sc =NewScanner (; theString input =sc.nextline (); -           -           if(Input.length () > 20)return ; -Hashmap<character, integer> map =NewHashmap<character, integer>(); +           //Count character times -           Char[] CHS =Input.tochararray (); +            for(CharCh:chs) A           { at                if(!map.containskey (CH)) -                { -Map.put (ch,1); -                } -                Else -                { inMap.put (Ch,map.get (CH) +1); -                } to           } +           -           intMin =collections.min (Map.values ()); the           //Delete *            for(CharCh:chs) $           {Panax Notoginseng                if(min! =map.get (CH)) - res.append (CH); the           } +           A  the System.out.println (res.tostring ());  +           -      } $  $}

Delete characters with the fewest occurrences in a string

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