How to create a File in Java using JDK 6, JDK 7 with NIO or Commons IO. Read more→ Java - Write to File 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 filenamefileTe...
In this Java tutorial, you will learn how to read contents of a File line by line using BufferedReader class, with examples. Read contents of a file line by line using BufferedReader Following are the steps to read contents of a File line by line using BufferedReader: Step 1: Load the ...
首先创建FileReader对象112、将FileReader传递给BufferedReader123、采用BufferedReader的readLine()方法和read()方法来读取文件内容134、最后一定要的finally语句中关闭BufferedReader15*/16publicclassMathYsf3{17publicstaticvoidmain(
ReadFileLineByLineUsingBufferedReader.java packagecom.journaldev.readfileslinebyline;importjava.io.BufferedReader;importjava.io.FileReader;importjava.io.IOException;publicclassReadFileLineByLineUsingBufferedReader{publicstaticvoidmain(String[]args){BufferedReaderreader;try{reader=newBufferedReader(newFileReader("...
public class FileReader extends InputStreamReader { /** * Creates a new {@code FileReader}, given the {@code File} to read, * using the platform's * {@linkplain java.nio.charset.Charset#defaultCharset() default charset}. * * @param file the {@code File} to read ...
How to read ini file using Java import java.io.BufferedReader; import java.io.FileReader; import java.io.IOException; import java.util.HashMap; import java.util.Properties; public class iniReader { protected HashMap<String, Properties> sections = new HashMap<String, Properties>();...
Note: In order to run this file, you should have a file named input.txt in your current working directory. Example 2: Java Program to Read File Using BufferedReader import java.io.FileReader; import java.io.BufferedReader; class Main { public static void main(String[] args) { // Creates...
使用BufferedReader 读取文件,最老的方式 If you are still not using java 7 or later, then useBufferedReaderclass. It’sreadLine()method reads the file one line at a time and return the content. 代码语言:javascript 代码运行次数:0 复制
Next, in therun()method, we open the file usingBufferedReaderfor efficient line reading. We also include error handling for potentialIOExceptionthat might occur during file operations. @Overridepublicvoidrun(){try(BufferedReaderreader=newBufferedReader(newFileReader(inputFileName))) { ...
import java.io.FileReader; import java.io.IOException; import java.nio.charset.StandardCharsets; void main() throws IOException { var fileName = "src/main/resources/thermopylae.txt"; try (BufferedReader br = new BufferedReader( new FileReader(fileName, StandardCharsets.UTF_8))) { ...