java8Examples/Java8Examples/src/readfile/ReadFileStream.java at master · suatoz/java8Examples · GitHub

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package readfile;

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;

import java.util.stream.Stream;

public class ReadFileStream {

static String fileName = "d:/lines.txt";

public static void main(String[] args) {

readFileGen();

System.err.println("<---------------------------------------------------------------->");

readFileGenExtra();

System.err.println("<---------------------------------------------------------------->");

linesMethod();

String den = "deneme";

den.chars().mapToObj(x -> (char)x).forEach(System.out::println);

}

private static void readFileGen() {

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

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

}catch (IOException e) {

e.printStackTrace();

}

private static void readFileGenExtra() {

List<String> list = new ArrayList<>();

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

list = stream.filter(line->!line.startsWith("line3")).map(String::toUpperCase).collect(Collectors.toList());

}catch (IOException e) {

e.printStackTrace();

}

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

}

private static void linesMethod() {

List<String> list = new ArrayList<>();

try(BufferedReader br = Files.newBufferedReader(Paths.get(fileName))){

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

}catch (IOException e) {

e.printStackTrace();

}

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

}

java8Examples/Java8Examples/src/readfile/ReadFileStream.java at master · suatoz/java8Examples · GitHub

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