Filefile=newFile("c:/temp/data.txt");try(FileReaderfr=newFileReader(file);BufferedReaderbr=newBufferedReader(fr);){Stringline;while((line=br.readLine())!=null){System.out.println(line);}}catch(IOExceptione){e.p
readLine --> closeFile closeFile --> end 示例代码 下面是使用 FileReader 逐行读取文件的示例代码: importjava.io.BufferedReader;importjava.io.FileReader;importjava.io.IOException;publicclassReadFileLineByLine{publicstaticvoidmain(String[]args){StringfileName="example.txt";try(BufferedReaderreader=newBuff...
reader = new BufferedReader(new FileReader(file)); String tempString = null; int line = 1; // 一次读入一行,直到读入null为文件结束 while ((tempString = reader.readLine()) != null) { body.append(tempString); body.append("\n");//换行符 // 显示行号 System.out.println("line " + lin...
Enough of Java 8 and Stream, let revisit the classic BufferedReader (JDK1.1) and Scanner (JDK1.5) examples to read a file line by line, it is working still, just developers are moving toward Stream. 4.1 BufferedReader + try-with-resources example. TestReadFile4.java package com.mkyong.cor...
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...
本文翻译自How to read a file line by line in Java 有时我们想逐行读取一个文件来处理内容。 一个很好的例子是逐行读取CSV文件,然后将其用逗号(,)分成多列。 在Java中,当您需要逐行读取文件时,有多种选项可供选择。 1.Scanner Scanner类提供了用Java逐行读取文件的最简单方法。 我们可以使用Scanner类打开文...
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...
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. ...
一、FileInputStream 字节流读取文件 【注意:读取中文的时候会乱码】 具体代码如下: //按照字节读取文件内容publicstaticString readFileByByte(){ String s=""; File f=newFile("E:\\Java\\jmoa\\TestDiff\\src\\test\\resource\\test_fb.txt"); ...
= null) { buffer.append(line); } reader.close(); // 查看解密后的内容是否与上传的明文一致。 System.out.println("Put plain text: " + content); System.out.println("Get and decrypted text: " + buffer.toString()); } catch (OSSException oe) { System.out.println("Caught an OSSException,...