자바 텍스트파일 저장

import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.util.ArrayList;

public class Test
{
 public static void main(String args[])
 {
  ArrayList<String[]> data = new ArrayList<>();
  ArrayList<String[]> data2 = null;
  
  String str[] = new String[2];
  
  str[0] = "책이름1";
  str[1] = "저자1";
  data.add(str);  
  
  str = new String[2];
  str[0] = "책이름2";
  str[1] = "저자2";
  data.add(str);  
  
  str = new String[2];
  str[0] = "책이름3";
  str[1] = "저자3";
  data.add(str);
  
  //저장
  try
  {
   ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream("Test.txt"));
   
   oos.writeObject(data);
   
   oos.close();
  }
  
  catch(Exception ex)
  {
   
  }//저장끝
  
  
  //로딩
  try
  {
   ObjectInputStream ois = new ObjectInputStream(new FileInputStream("Test.txt"));
   
   data2 = (ArrayList<String[]>)ois.readObject();
   
   ois.close();
  }
  
  catch(Exception ex)
  {
   
  }//로딩끝
  
  //결과 출력
  for(String s[]:data2)
  {
   System.out.println(s[0] + ":" + s[1]);
  }
 }
}