蓝桥杯算法提高VIP-统计单词数-题解（Java代码）

解题思路:

注意事项:

参考代码:

import java.util.LinkedHashMap;

import java.util.Map;

import java.util.Scanner;

public class Main {

public static void main(String[] args) {

Scanner scanner=new Scanner(System.in);

int i = 0;

String str;

int max=0;

Map<String, Integer> map = new LinkedHashMap<String, Integer>();

while(scanner.hasNext()) {

str=scanner.nextLine();

str=str.toUpperCase();

String[] a=str.split("\\W+");

for(i=0;i<a.length;i++) {

if(a[i].lastIndexOf(".")!=-1)

a[i]=a[i].substring(0, a[i].lastIndexOf("."));

//System.out.println(a[i]);

  if(map.get(a[i])==null) 

  map.put(a[i],1); 

  else

  map.put(a[i], map.get(a[i])+1);

max=Math.max(max, a[i].length());

}

for(String key:map.keySet()) {

System.out.printf("%"+max+"s:", key);

for(i=0;i<map.get(key);i++)

System.out.print("*");

System.out.println(map.get(key));

}

}

}

}