求求哪位大神帮帮忙，一直求不出the的个数%>_<%

import *;
import java.util.*;
public class End {
    private int line, charCount, countThe;
    private StringBuffer sb;
    private Vector<String> v;
    private Vector<StringBuffer> vsb;

    public End() {
        sb = new StringBuffer();
        v = new Vector<String>();
        vsb = new Vector<StringBuffer>();
    }

    public void input() throws IOException {
        String s = "";
        System.out.println("请输入若干行文本,以end作为结束行:");
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        s = br.readLine();
        while (!s.equals("end")) {
            v.add(s);
            StringBuffer ssb = new StringBuffer(s);
            vsb.add(ssb);
            s += "\n";
            line++;
            sb.append(s);
            s = br.readLine();
        }
    }

    public void count() {
        for (int i = 0; i < v.size(); i++) {        
            String[]s = v.get(i).split("");
            String ss = "";
            for (int j = 0; j < s.length; j++) {
                if (s[j].contains("the"))
                    countThe++;               
                ss+=s[j];               
            }
            charCount += ss.length();            
        }
    }//问题

    public void translate() {
        for (int i = 0; i < vsb.size(); i++) {
            for (int j = 0; j < vsb.get(i).length(); j++)
                if (j == 0 || vsb.get(i).charAt(j - 1) == ' ')
                    vsb.get(i).setCharAt(j, Character.toUpperCase(vsb.get(i).charAt(j)));
        }
    }

    public void output() {
        System.out.println("该文本由" + line + "行组成,字符总数为：" + charCount + "，有 " +countThe+ "个“the”");
        System.out.println("将整个文本中所有单词首字母为小写的改为大写输出:");
        System.out.println(vsb.toString());
    }

    public static void main(String[] args) throws IOException {
        End e = new End();
        e.input();
        e.count();
        e.translate();
        e.output();
    }
}