Java File

import java.io.*;import java.util.*;public class DPC{	public static void main(String[] args) throws Exception	{		ArrayList lines = getLines("temp.txt");		for(int i = 0; i< lines.size(); i++)		{			System.out.println(lines.get(i).toString());		}			}		public static ArrayList getLines(String path) throws Exception	{		ArrayList arr = new ArrayList();		BufferedReader f = new BufferedReader(new FileReader(path));		String str;		while((str = f.readLine()) != null)		{			arr.add(str);		}				f.close();		return arr;			}}