关于java导出txt代码的信息

java输出txt

在D盘新建两个文件test.txt,test1.txt

把内容拷到test中,test1为输出...

import java.io.BufferedReader;

import java.io.FileNotFoundException;

import java.io.FileReader;

import java.io.IOException;

import java.io.PrintWriter;

public class ZhiDao {

public static void main(String[] args) {

// TODO Auto-generated method stub

BufferedReader br = null;

String lineContent = null;

StringBuffer sb = new StringBuffer();

PrintWriter pw = null;

try {

br = new BufferedReader(new FileReader("D:\\test.txt"));

pw = new PrintWriter("D:\\test1.txt");

} catch (FileNotFoundException e1) {

// TODO Auto-generated catch block

e1.printStackTrace();

}

while ((lineContent = br.readLine()) != null) {

if(lineContent.equals("")){

sb.append("\r\n");

}else{

for(int i = 0; ilineContent.length(); i◆◆){

char charContent = lineContent.charAt(i);

sb.append(charContent);

System.out.println(sb);

pw.write(sb.toString());

} catch (IOException e) {

e.printStackTrace();

br.close();

pw.close();

怎么将一个java程序的结果输出到文本文档中,写一段代码,谢谢

import?java.io.BufferedWriter;

import?java.io.File;

import?java.io.FileWriter;

import?java.io.IOException;

import?java.util.Scanner;

public?class?OutToTxt?{

private?static?BufferedWriter?writer;

private?static?Scanner?sc;

public?static?void?main(String[]?args)?{

File?out?=?new?File("./Out.txt");

if(!out.exists())?{

try?{

out.createNewFile();

}?catch?(IOException?e)?{

writer?=?new?BufferedWriter(new?FileWriter(out));

sc?=?new?Scanner(System.in);

System.out.println("请输入文本内容,输入exit结束：");

writer.write("");?//?清空文本

String?split?=?"";

while(true)?{

String?line?=?sc.nextLine();

if(line.equalsIgnoreCase("exit"))?{

break;

writer.append(split?◆?line);

split?=?"\r\n";

}?catch?(IOException?e1)?{

}?finally?{

if(null?!=?writer)?{

writer.flush();

writer.close();

你可以运行后输入

Hello World!

This is my first application.

exit

求java实现的文件的导入导出txt功能的具体代码啊啊啊～～万分感激

写文件

import java.io.FileOutputStream;//写文件

public class WriteFile {

public static void main(String[] args) throws Exception {

String temp="Hello world!\n";

FileOutputStream fos=new

FileOutputStream("D:\\GUI\\write.txt",true);//两个参数,true表示在文件末尾追加

fos.write(temp.getBytes());

fos.close();//流要及时关闭

读文件

import java.io.FileInputStream;//读文件

public class ReadFile {

FileInputStream fis=new FileInputStream("D:\\GUI\\test.txt");

String result="";

while(true){

int num=fis.read(b);//num返回实际读到的字节数,如果文件读完了返回-1；

if(num==-1)break;

result=result◆new String(b,0,num);

fis.close();

System.out.println(result);

如何用java输出txt文件

输入无需使用字节流,直接字符流读取即可.

private?void?input(String?fileName)?throws?IOException?{

try(BufferedReader?reader?=?new?BufferedReader(new?FileReader(fileName)))?{

String?line;

while((line=reader.readLine())?!=?null)?{

System.out.println(line);

}?

同样输出,只要把Input换成Output;

private?void?output(String?fileName,?String?content)?throws?IOException{

try(BufferedWriter?writer?=?new?BufferedWriter(new?FileWriter(fileName)))?{

writer.write(content);

java 数据输出到txt文件

import java.io.File;

import java.io.FileOutputStream;

import java.io.PrintStream;

public class TestBaiduKnow {

public static void main(String[] args) throws IOException {

FileOutputStream fs = new FileOutputStream(new File("D:\\text.txt"));

PrintStream p = new PrintStream(fs);

p.println(100);

p.close();

//简单的一个例子,来模拟输出

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