统计文章中单词出现的次数

统计文章中单词出现的次数

package company;
import java.util.HashMap;
import java.util.Map;
import java.util.Scanner;
public class Demo2
{public static void main(String[] args){System.out.println("请输入英文章");
        Scanner sc=new Scanner(System.in);
        String strPara&#Line();
        String[] strArray=strPara.split(" ");
        Map<String,Integer> mapwords=new HashMap<String,Integer>();
        for(String str:strArray){if(!ainsKey(str)){mapwords.put(str,1);
            }else
            {Integer icount&#(str);
                icount++;
                mapwords.put(str,icount);
            }}//返回一个实现Map.Entry接口的对象集合
        for(Map.Entry<String,Integer> Set()){String strkey&#Key();//返回键
            Integer icount&#Value();//返回值
            System.out.println(strkey+"出现了"+icount+"次");
        }}
}