java read all lines from file

/**
 * @author lautturi.com 
 * Java example: reading lines from file in java
 */

import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.util.*;

public class Lautturi {
	public static void main(String[] args) throws IOException {
		String filepath = "test.txt";
		File fp = new File(filepath);
		FileReader fr = new FileReader(fp);
		BufferedReader br = new BufferedReader(fr);

		ArrayList<String> lines = new ArrayList<>();
		String line;
		while ((line = br.readLine()) != null) {
			lines.add(line);
		}

		fr.close();
		System.out.println("lines:" + lines);
	}
}