统计一段英文中单词出现的次数

package day1028;

import java.util.HashMap;
import java.util.Map;
import java.util.Scanner;
import java.util.Set;

public class Test1028a {
  public static void main(String[] args) {
	
	  System.out.println("请输入心中所想：");
	  Scanner sc=new Scanner(System.in);
	  String str=sc.nextLine();
	  //定义一个数组用来接收切割的字符串
	  String[] strarr=str.split(" ");
System.out.println(strarr.length);
	  HashMap<String, Integer> map=new HashMap<String, Integer>();
	   for(String ss:strarr)
	   {
		   if(!map.containsKey(ss))
		   {
			   map.put(ss, 1);
			   
		   }else
		   {
			   Integer count=map.get(ss);
			   count++;
			   map.put(ss, count);
		   }
	   }
	   
	   Set<String> set=map.keySet();
	   System.out.println(set.size());
	   //遍历map
	   for(Map.Entry<String, Integer> mm : map.entrySet())
	   {
		   System.out.println(mm.getKey()+"---"+ mm.getValue());
		  
	   }
}
}