Another option to read text files is to use the Java streaming API. TheFiles.linesreads all lines from a file as a stream. The bytes from the file are decoded into characters using theStandardCharsets.UTF-8char
4. Reading a File Line by Line usingFileReader[Legacy] Till Java 7, we could read a file usingFileReaderin various ways. This has been mentioned for reference only, and shall not be used in Java 8 or later, as it provides no additional benefit for this usecase. Filefile=newFile("c:/...
ReadFileLineByLineUsingScanner.java packagecom.journaldev.readfileslinebyline;importjava.io.File;importjava.io.FileNotFoundException;importjava.util.Scanner;publicclassReadFileLineByLineUsingScanner{publicstaticvoidmain(String[]args){try{Scannerscanner=newScanner(newFile("sample.txt"));while(scanner.hasNe...
c://lines.txt – A simple text file for testing line1 line2 line3 line4 line5 1. Java 8 Read File + Stream TestReadFile.java package com.mkyong.java8; import java.io.IOException; import java.nio.file.Files; import java.nio.file.Paths; import java.util.stream.Stream; public class T...
import java.io.FileReader; import java.io.IOException; /** * Read contents of a File line by line using BufferedReader * www.tutorialkart.com */ public class Example { public static void main(String args[]){ String filename = "samplefile.txt"; ...
Data in the file: First Line Second Line Third Line Fourth Line Fifth Line In the above example, we have used the BufferedReader Class to read the file named input.txt. Example 3: Java Program to Read File Using Scanner import java.io.File; import java.util.Scanner; class Main { public...
The many ways to write data to File using Java. Read more→ 2. Setup 2.1. Input File In most examples throughout this article, we’ll read a text file with filenamefileTest.txtthat contains one line: Hello, world! For a few examples, we’ll use a different file; in these cases, ...
4. UsingBufferedReader– Java 6 If you are still not using Java 7 or later, then useBufferedReaderclass. ItsreadLine()method reads the file one line at a time and returns the content. Read file line by line PathfilePath=Path.of("c:/temp/demo.txt");StringfileContent="";StringBuildercon...
1Files.lines(Paths.get("Nio.java"))2.map(String::trim)3.forEach(System.out::println); The above reads the file “Nio.java”, callstrim()on every line, and then prints out the lines. Notice thatSystem.out::printlnrefers to theprintlnmethod on an instance ofPrintStream. ...
try(BufferedReader br=newBufferedReader(newFileReader(file))){for(String line;(line=br.readLine())!=null;){// process the line.}// line is not visible here.} UPDATE: In Java 8 you can do try(Stream<String>stream=Files.lines(Paths.get(fileName))){stream.forEach(System.out::println)...