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 TestReadFile { public static void main(String args[]) { String fileName = "c://l...
PathfilePath=Paths.get("c:/temp","data.txt");List<String>lines=Files.readAllLines(filePath);for(Stringline:lines){System.out.println(line);} 4. Reading a File Line by Line usingFileReader[Legacy] Till Java 7, we could read a file usingFileReaderin various ways. This has been mentioned ...
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...
try{// create a reader instanceBufferedReader br=newBufferedReader(newFileReader("examplefile.txt"));// read until end of fileString line;while((line=br.readLine())!=null){System.out.println(line);}// close the readerbr.close();}catch(IOException ex){ex.printStackTrace();} readLine()方...
1. Read File Line by Line using BufferedReader In this example, we have a text file named samplefile.txt, and we will read contents of this file, line by line, using BufferedReader class. samplefile.txt This is first line. This is second line. ...
本文翻译自How to read a file line by line in Java ccf19881030 2020/11/24 11.1K0 2018-04-26 Java – Read File to String Examples三种方法把文件读成一个字符串 java 原文地址:(英文版) https://howtodoinjava.com/core-java/io/java-read-file-to-string-examples/ Learn to read file to strin...
public static String readFileByLines(String fileName) { File file = new File(fileName); BufferedReader reader = null; StringBuilder body = new StringBuilder(); try { System.out.println("以行为单位读取文件内容,一次读一整行:"); reader = new BufferedReader(new FileReader(file)); ...
line++; } reader.close(); }catch(IOException e) { e.printStackTrace(); }finally{if(reader !=null) {try{ reader.close(); }catch(IOException e1) { } } } }/** * 随机读取文件内容*/publicstaticvoidreadFileByRandomAccess(String fileName) { ...
2.1. Reading a File Line by Line try(BufferedReaderbufferedReader=newBufferedReader(newFileReader("/path/file"))){StringcurrLine;while((currLine=bufferedReader.readLine())!=null){System.out.println(currLine);System.out.println(System.lineSeparator());}}catch(IOExceptione){e.printStackTrace();}...
{ ExecutionContext ctx; long fileResourceLineCount; long tableResource1RecordCount; long tableResource2RecordCount; @Override public void setup(ExecutionContext ctx) throws UDFException { this.ctx = ctx; try { InputStream in = ctx.readResourceFileAsStream("file_resource.txt"); BufferedReader br =...