java在线代码格式 java代码怎么写

如何在Java代码中指定生成"Unix格式的文本文件“？

写入文本文件时指定文件编码为gbk试试。每行结尾换行都输入\r\n。

相关问答

Q1: java中GBK编码格式转成UTF8，用一段方法实现怎么做

import java.io.BufferedReader;

import java.io.BufferedWriter;

import java.io.File;

import java.io.FileInputStream;

import java.io.FileOutputStream;

import java.io.InputStreamReader;

import java.io.OutputStreamWriter;

public class ConvertCharset

{

private static final String SEPARATOR = System.getProperty ("line.separator");

/**

* @param path the file path or directory

* @param back the backup file path or directory

* @param cs1 the orignle charset name

* @param cs2 the dest charset to convert

*/

public static void convertCharset ( String path, String back, String cs1, String cs2 )

{

try

{

File dir = new File (path);

// a directory, not a file

if (dir.isDirectory ())

{

File[] files = dir.listFiles ();

for ( int i = 0; i files.length; i++ )

{

File dirt = files[i];

String fn = dirt.getName ();

String name = path + File.separator + fn;

// recursion

if (dirt.isDirectory ())

{

convertCharset (name, back + File.separator + fn, cs1, cs2);

}

else

{

// write

File dest = new File(back);

if (!dest.exists ())

{

dest.mkdirs ();

}

FileOutputStream fos = new FileOutputStream (back + File.separator + fn);

OutputStreamWriter osw = new OutputStreamWriter (fos, cs2);

BufferedWriter bw = new BufferedWriter (osw);

// read

FileInputStream fis = new FileInputStream (name);

InputStreamReader isr = new InputStreamReader (fis, cs1);

BufferedReader br = new BufferedReader (isr);

String line = null;

while (null != ( line = br.readLine () ))

{

bw.write (line + SEPARATOR);

}

// write

fos.flush ();

osw.flush ();

bw.flush ();

bw.close ();

osw.close ();

fos.close ();

// read

br.close ();

isr.close ();

fis.close ();

}

}

}

// a single file

else

{

// write

File dest = new File(back);

if (!dest.exists ())

{

dest.mkdir ();

}

FileOutputStream fos = new FileOutputStream (back + File.separator + dir.getName ());

OutputStreamWriter osw = new OutputStreamWriter (fos, cs2);

BufferedWriter bw = new BufferedWriter (osw);

// read

FileInputStream fis = new FileInputStream (path);

InputStreamReader isr = new InputStreamReader (fis, cs1);

BufferedReader br = new BufferedReader (isr);

String line = null;

while (null != ( line = br.readLine () ))

{

bw.write (line + SEPARATOR);

}

// write

fos.flush ();

osw.flush ();

bw.flush ();

bw.close ();

osw.close ();

fos.close ();

// read

br.close ();

isr.close ();

fis.close ();

}

System.out.println ("Convert Success !");

}

catch (Exception e)

{

e.printStackTrace ();

System.out.println ("Convert Failed !");

}

}

public static void main ( String[] args )

{

// a single file

convertCharset ("I:\\2013313workspace\\Yaojiangji\\src\\yaojiangji\\paixu.java",

"I:\\2013313workspace\\Yaojiangji\\back",

"GBK",

"UTF-8");

// not a file , it's a directory

// convertCharset ("I:\\2013313workspace\\Yaojiangji\\src\\yaojiangji",

// "I:\\2013313workspace\\Yaojiangji\\back\\yaojiangji",

// "GBK",

// "UTF-8");

}

}

Q2: java怎么获取文件编码格式？

没错，就这样做，文件格式和文件内容，不是这样的。

普通文件，开始就是文件内容了。

有编码的，开头先是编码的定义，正如判断语句所写的那样

Q3: java代码中文乱码怎么解决方法

解决乱码问题：可以修改eclipse里的编码格式来解决乱码问题：

1、window-- Preference

2、点击General--Workspace,在右面的窗体找到“Text file encoding”,就可以修改编码格式了

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