题解 | #统计一句话中重复单词的个数#

import java.util.*;

public class Main { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); String line = scanner.nextLine(); Map<Character, Integer> map = new LinkedHashMap<Character, Integer>();

    //write your code here......
    //处理当前字符串内的所有特殊字符,替换成空格
    line = line.replaceAll("[^a-zA-Z]"," ");
    
    int count = 1;//计数器
    for(int i = 0;i < line.length();i++){
        if(line.charAt(i) != ' '){
            if(map.containsKey(line.charAt(i))){

// Object obj = map.put(line.charAt(i),count); // count = (Integer)obj; // count++; // map.put(line.charAt(i),count); //简化 map.put(line.charAt(i),map.get(line.charAt(i))+1); }else{ map.put(line.charAt(i),count); } } count = 1; }

    Set<Map.Entry<Character, Integer>> entrys = map.entrySet();
    for (Map.Entry<Character, Integer> entry : entrys) {
        System.out.println(entry.getKey() + ":" + entry.getValue());
    }
}

}