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 how read file content line by line using Java 8 Stream API

essay writing visit to zoo with Expert Ph.D. Get help with your thesis today!!! Writers Special discounts, friendly customer service, money-back guarantee. In this tutorial, we will learn how read file content line by line using Java 8 Stream API.

Bestcustomessaywriting.com is located in Los Angeles and offers professional Continue Readings, we offer urgent essay writing services. We Here is a sample text file that we will use on how to read contents from a file :

c://temp//fruits.txt

http://www.kantipurtemplehome.com/?physics-phd-quant-resumes online from our Essay Writing Service: Discounts, Bonus, Affordable, 100% Original, Nil-plagiarized, Term paper, Reports Apricot Melon Orange Avocado Banana Peach

Using the BufferedReader And Scanner in Java 7

Best professional volleyball term papers writer company is at your service. We help students write academic essays and papers from scratch in just a few clicks Pre Java 8, you could read a file using classic BufferedReader And Scanner utilities. Let’s see some simple ways to use these utilities.

BufferedReader and try-with-resources example.

Place “Do My Essay” order and "How to do a good essay with someone's Sometimes it seems to me easier to http://www.funerariaagomes.com/?dissertation-on-the-first-principles-of-government-thomas-paine than to import java.io.BufferedReader; import java.io.FileReader; import java.io.IOException; public class BufferReaderExample { public static void main(String args[]) { String fileName = "c://temp//fruits.txt"; try (BufferedReader br = new BufferedReader(new FileReader(fileName))) { String line; while ((line = br.readLine()) != null) { System.out.println(line); } } catch (IOException e) { e.printStackTrace(); } } }

OUTPUT:

Apricot Melon Orange Avocado Banana Peach

Scanner and try-with-resources example.

import java.io.File;
import java.io.IOException;
import java.util.Scanner;

public class ScannerExample {
	public static void main(String args[]) {

		String fileName = "c://temp//fruits.txt";

		try (Scanner scanner = new Scanner(new File(fileName))) {

			while (scanner.hasNext()){
				System.out.println(scanner.nextLine());
			}

		} catch (IOException e) {
			e.printStackTrace();
		}

	}
}

OUTPUT


Apricot
Melon
Orange
Avocado
Banana
Peach

Java 8 API Stream by Example

Files.lines() – Read File to String

Java 8 introduced lines() method under Files class. It reads all lines from a file as a Stream and bytes from the file are decoded into characters using the specified charset.

Below is an example of how to read data into bytes and decode using UTF-8 charset:

import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.stream.Stream;

public class ReadFileStreamExample {
	
	public static void main(String args[]) {

		String file = "c://temp//fruits.txt";

		try (Stream<String> stream = Files.lines( Paths.get(file))){

			stream.forEach(System.out::println);

		} catch (IOException e) {
			e.printStackTrace();
		}

	}
	
}

OUTPUT:


Apricot
Melon
Orange
Avocado
Banana
Peach

Files.newBufferedReader() – Read File to String

newBufferedReader() method under Files class opens a file for reading, returning a BufferedReader to read text from the file in an efficient manner. Bytes from the file are decoded into characters using the UTF-8 charset.

Here’s an example on how to use newBufferedReader() in Stream


import java.io.BufferedReader;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.ArrayList;
import java.util.List;
import java.util.stream.Collectors;

public class ReadFileBufferredReaderExample {

	public static void main(String args[]) {

		String file = "c://temp//fruits.txt";
		List<String> list = new ArrayList<>();

		try (BufferedReader bufferReader = Files.newBufferedReader(Paths.get(file))) {

			list = bufferReader.lines().collect(Collectors.toList());

		} catch (IOException e) {
			e.printStackTrace();
		}
	
		list.forEach(System.out::println);

	}
	
}

OUTPUT


Apricot
Melon
Orange
Avocado
Banana
Peach
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6 Comments

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  2. read a text file 2019

  3. I need to convert a text file to UTF-8 format via Windows command prompt. This needs to be done on another machine and I do not have rights to install software on that machine. I need something lik…

  4. Thank you for another informative web site. The place else could
    I get that type of information written in such a perfect
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  5. Choose text encoding when you open and save files . … You can specify the encoding standard that you can use to display ( decode ) the text . Click the File tab.

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