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package english;
import java.io.File;
import java.util.Scanner;
import java.io.FileNotFoundException;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Set;
public class Words {
    public static <type> void main (String[] args) throws FileNotFoundException {
        File file=new File("E:\\word.txt");                  //读取文件
        if(!file.exists()){
            System.out.println("文件不存在");
            return;
        }  
        Scanner scanner=new Scanner(file);
        HashMap<String,Integer> hashMap=new HashMap<String,Integer>();
        //System.out.println("文章-----------------------------------");
        while(scanner.hasNextLine()) {
            String line=scanner.nextLine();
            //System.out.println(line);
            String[] lineWords=line.split("\\W+");          //导入文章，但是被注释掉了
            Set<String> wordSet=hashMap.keySet();
            for(int i=0;i<lineWords.length;i++) {
                if(wordSet.contains(lineWords[i])) {
                    Integer number=hashMap.get(lineWords[i]);
                    number++;
                    hashMap.put(lineWords[i], number); 
                    }
                else {
                    hashMap.put(lineWords[i], 1);
                }
            }
        }
        //System.out.println("统计单词：------------------------------");
        Iterator<String> iterator=hashMap.keySet().iterator();
        int max=0;
        String maxword=null;
        while(iterator.hasNext()){
            String word=iterator.next();
            //System.out.printf("单词:%-12s 出现次数:%d\n",word,hashMap.get(word));
            if(hashMap.get(word)>max) {                          //比较出现次数最多的单词
                max=hashMap.get(word);
                maxword=word;
            }
        }  
        System.out.println("出现最多的是"+maxword);
        System.out.println("最多出现了"+max+"次");
    }
}