包含java導出txt的詞條

本文目錄一覽：

• 1、如何用java輸出txt文件
• 2、java 數據輸出到txt文件
• 3、java輸出txt

如何用java輸出txt文件

輸入無需使用字節流，直接字符流讀取即可。

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);

        }   

    }

}

同樣輸出，只要把Input換成Output;

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

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

        writer.write(content);

        writer.flush();

    }

}

java 數據輸出到txt文件

import java.io.File;

import java.io.FileOutputStream;

import java.io.IOException;

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();

}

}

//簡單的一個例子，來模擬輸出

java輸出txt

在D盤新建兩個文件test.txt,test1.txt

把內容拷到test中，test1為輸出。。。

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();

}

try {

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

if(lineContent.equals(“”)){

sb.append(“\r\n”);

sb.append(“\r\n”);

}else{

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

char charContent = lineContent.charAt(i);

sb.append(charContent);

if(i != 0 i%60 == 0){

sb.append(“\r\n”);

}

}

}

}

System.out.println(sb);

pw.write(sb.toString());

} catch (IOException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

try {

br.close();

pw.close();

} catch (IOException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}

}