Java解析文本

import java.io.*;
import java.util.*;

public class FileManager {

 public List<Dishes> parseFile(File file) {
  String str = null;
  List<Dishes> list = new ArrayList<Dishes>();
  try {
   BufferedReader br = new BufferedReader(new FileReader(file));
   while((str = br.readLine())!=null) {
    if(str.startsWith("Name：")) {
       int index = str.indexOf("：");
       String dishName = str.substring(index+1,str.length());
       
       str = br.readLine();
       index = str.indexOf("：");
       String categoriesString = str.substring(index+1,str.length());
      
       String[]  cateArr = categoriesString.split(",");
       Set<String> categories = new HashSet<String>();
       for(int j = 0;j<cateArr.length;j++) {
        categories.add(cateArr[j]);
       }
       
       Set<String> ingredients = new HashSet<String>();
       String ss = br.readLine();
     
       while((str = br.readLine()) != null && !(str.length() == 0)) {
        String[] strArr = str.split(" ");
        for(int i = 0;i<strArr.length;i++) {
         ingredients.add(strArr[i]);
        }
       }
       Dishes d = new Dishes();
       d.setName(dishName);
       d.setCategories(categories);
       d.setIngredients(ingredients);
       
       list.add(d);
    }
   }
  } catch (IOException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }
  return list;
 }
 public static void main(String[] args) {
  // TODO Auto-generated method stub
      FileManager fm = new FileManager();
      List<Dishes> list = new ArrayList<Dishes>();
      File file = new File("D:/dishes.txt");
      list = fm.parseFile(file);
      
      for(int i = 0; i<list.size();i++) {
       System.out.println(list.get(i).getName());
       System.out.println(list.get(i).getCategories());
       System.out.println(list.get(i).getIngredients());
      }
 }

}

//菜肴类，一种菜对应于菜肴类的一的实例
class Dishes {
 private String name;
 private Set<String> Categories;    //菜肴类别
 private Set<String> ingredients;   //菜肴配料
 public String getName() {
  return name;
 }
 public void setName(String name) {
  this.name = name;
 }
 public Set<String> getCategories() {
  return Categories;
 }
 public void setCategories(Set<String> categories) {
  Categories = categories;
 }
 public Set<String> getIngredients() {
  return ingredients;
 }
 public void setIngredients(Set<String> ingredients) {
  this.ingredients = ingredients;
 }
}