package total;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.util.HashMap;
import java.util.Map;


public class Statistics_words {
    public Map<String, Integer> map1 = new HashMap<String, Integer>();

    public static void main(String arg[]) throws IOException {
        String sz[];
        Integer num[];
        final int MAXNUM = 20; 

        sz = new String[MAXNUM + 1];
        num = new Integer[MAXNUM + 1];
        Statistics_words Statistics_words = new Statistics_words();
        int account = 1;
        // Vector<String> ve1=new Vector<String>();
            Statistics_words.textImport();
        System.out.println("文本出现单词的次数情况为:");
        int g_run = 0;

        for (g_run = 0; g_run < MAXNUM + 1; g_run++) {
            account = 1;
            for (Map.Entry<String, Integer> it : Statistics_words.map1.entrySet()) {
                if (account == 1) {
                    sz[g_run] = it.getKey();
                    num[g_run] = it.getValue();
                    account = 2;
                }
                if (account == 0) {
                    account = 1;
                    continue;
                }
                if (num[g_run] < it.getValue()) {
                    sz[g_run] = it.getKey();
                    num[g_run] = it.getValue();
                }
                // System.out.println("英文单词: "+it.getKey()+" 该英文单词出现次数: "+it.getValue());
            }
            Statistics_words.map1.remove(sz[g_run]);
        }
        int g_count = 1;
        String tx1 = new String();
        for (int i = 0; i < g_run; i++) {
            if (sz[i] == null)
                continue;
            if (sz[i].equals(""))
                continue;
            tx1 += "出现次数第" + (g_count) + "多的单词为:" + sz[i] + "\t\t\t出现次数: " + num[i] + "\r\n";
            System.out.println("出现次数第" + (g_count) + "多的单词为:" + sz[i] + "\t\t\t出现次数: " + num[i]);
            g_count++;
        }
            Statistics_words.textExport(tx1);

    }

    public void textImport() throws IOException {

        File a = new File("C:\\Users\\22400\\Desktop\\a.txt");
        FileInputStream b = new FileInputStream(a);
        InputStreamReader c = new InputStreamReader(b, "UTF-8");
        String string2 = new String();
        while (c.ready()) {
            char string1 = (char) c.read();
            if (!isWord(string1)) {
                if (map1.containsKey(string2)) {
                    Integer num1 = map1.get(string2) + 1;
                    map1.put(string2, num1);
                } else {
                    Integer num1 = 1;
                    map1.put(string2, num1);
                }
                string2 = "";
            } else {
                string2 += string1;
            }
        }
        if (!string2.isEmpty()) {
            if (map1.containsKey(string2)) {
                Integer num1 = map1.get(string2) + 1;
                map1.put(string2, num1);
            } else {
                Integer num1 = 1;
                map1.put(string2, num1);
            }
            string2 = "";
        }
        c.close();
        b.close();
    }

    public void textExport(String txt) throws IOException {
        File fi = new File("StatisticsWord.txt");
        FileOutputStream fop = new FileOutputStream(fi);
        OutputStreamWriter ops = new OutputStreamWriter(fop, "UTF-8");
        ops.append(txt);
        ops.close();
        fop.close();
    }

    public boolean isWord(char a) {
        if (a <= 'z' && a >= 'a' || a <= 'Z' && a >= 'A')
            return true;
        return false;
    }

}