题解 | #删除字符串中出现次数最少的字符#
删除字符串中出现次数最少的字符
http://www.nowcoder.com/practice/05182d328eb848dda7fdd5e029a56da9
import java.util.*;
public class Main{
public static void main(String[] args){
Scanner sc = new Scanner(System.in);
String str= sc.nextLine();
Integer minValue = 20;
Map map= new LinkedHashMap<Character,Integer>();
for(char c : str.toCharArray()){
if(map.containsKey(c)){
map.put(c,(int)map.get(c)+1);
}else map.put(c,1);
}
for(Object c : map.keySet()){
minValue = minValue > (int)map.get(c)? (int)map.get(c) : minValue;
}
for(Object c : map.keySet()){
if(minValue == map.get(c)){
str= str.replaceAll(c.toString() , "");
}
}
System.out.print(str);
}
}