txt 中的资料
张三;男;20;;
李四;女;19;大专;
王五;男;23;本科;

已能读取 txt 的资料，
现在的问题是如何把 
txt中的资料分组取出！
求相关例子！tks！

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;

public class test {

    private void test(){
        FileReader reader;
        try {
            reader = new FileReader("D:\\test.txt");
            BufferedReader br = new BufferedReader(reader);
            String s1 = null;
              while((s1 = br.readLine()) != null) {
                  String[] data=s1.split(";");
                  String realname=data[0];   //姓名
                  String sex=data[1];        //性别
                  String age=data[2];        //年龄
                  String education=data[3];  //学历
                  //写入数据库 省略
              }
             br.close();
             reader.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

------解决方案--------------------
支持ls的！！

做好加上去掉空格

trim()

------解决方案--------------------

写了一段，希望多理解一下吧。理解了的东西才是自己的
Java code

public class Test {
    
    public List<PersonInfo> getPersonInfo(String path){
        List<PersonInfo> persons = new ArrayList<PersonInfo>();
        FileReader reader;
        try {
            reader = new FileReader("D:\\test.txt");
            BufferedReader br = new BufferedReader(reader);
            String s1 = null;
              while((s1 = br.readLine()) != null) {
                  String[] data=s1.split(";");
                  if(data.length != 4){
                      String[] strs = new String[4];
                      for(int i = 0; i < data.length; i++){
                          strs[i] = data[1];
                      }
                      data = strs;
                  }
                  persons.add(new PersonInfo(data[0],data[1],Integer.parseInt(data[2]),data[3]));
              }
             br.close();
             reader.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return persons;
    }
    
    public void insertPersons(List<PersonInfo> persons){
        Connection c = null;
        Statement st = null;
        try {
            Class.forName("");//加载驱动
            c = DriverManager.getConnection("", "", "");//获取连接
            List<String> sqls = getInsertSql(persons);
            st = c.createStatement();
            int count = 1;
            c.setAutoCommit(false);
            for(String sql : sqls){
                st.addBatch(sql);
                count++;
                if(count == 100){
                    st.executeBatch();
                    count = 1;
                }
            }
            c.commit();
        } catch (ClassNotFoundException e) {
            e.printStackTrace();
        } catch (SQLException e) {
            e.printStackTrace();
        } finally{
            try {
                if(c != null){
                    c.close();
                }
                if(st != null){
                    st.close();
                }
            } catch (SQLException e) {
                e.printStackTrace();
            }
        }
    }
    
    public List<String> getInsertSql(List