1、 1publicstaticvoidwriteFile1()throwsIOException {2File fout =newFile("out.txt");3FileOutputStream fos =newFileOutputStream(fout);45BufferedWriter bw =newBufferedWriter(newOutputStreamWriter(fos));67for(inti = 0; i < 10; i++) {8bw.write("something");9bw.newLine();10}1112bw.close...
importjava.io.FileWriter;importjava.io.IOException;publicclassMain{publicstaticvoidmain(String[]args){try{FileWriterwriter=newFileWriter("example.txt");writer.write("Hello, World!\n");writer.write("This is a new line.\n");writer.close();System.out.println("Data has been written to the file...
publicclassWriteFileExample { publicstaticvoidmain(String[] args) { File file =newFile("c:/newfile.txt"); String content ="This is the text content"; try(FileOutputStream fop =newFileOutputStream(file)) { // if file doesn't exists, then create it if(!file.exists()) { file.createNe...
WriteFile.java package com.journaldev.files; import java.io.BufferedWriter; import java.io.File; import java.io.FileOutputStream; import java.io.FileWriter; import java.io.IOException; import java.io.OutputStream; import java.nio.file.Files; import java.nio.file.Paths; public class WriteFile {...
public class FileExample { public static void main(String[] args) { Charset utf8 = StandardCharsets.UTF_8; List<String> list = Arrays.asList("Line 1", "Line 2"); try { // If the file doesn't exists, create and write to it ...
int line = 0;while ((line = fileinputstream.read(bytes)) != -1) { enbytes = Arrays.copyOfRange(bytes, 0, line);out.write(enbytes, 0, enbytes.length);} //out.close();//fileinputstream.close();//File oldFile = new File(fileName);//oldFile.delete();//File new...
//file中的 line数据格式:name,age,address -> NAME,AGE,ADDRESS, String[] contents = line.split(","); for (int i=0;i newLine.concat(contents[i].toLowerCase()); } lines.add(newLine); //将处理后的数写入新的文件 outFile FileUtils.writeLines(outFile,lines,true); ...
Java网络编程涉及TCP/IP协议、端口套接字、IP地址及域名系统等基础。TCP是可靠传输协议,UDP则高效但不可靠。Socket是网络通信编程接口,支持多种协议。Java通过InetAddress类处理IP地址,Socket类实现客户端与服务端通信,涵盖创建连接、数据传输及关闭连接等步骤。
Opens or creates a file for writing, returning a BufferedWriter to write text to the file in an efficient manner. static SeekableByteChannelnewByteChannel(Path path, OpenOption... options) Opens or creates a file, returning a seekable byte channel to access the file. static SeekableByteChannel...
public static void main(String[] args) throws FileNotFoundException { FileOutputStream ...