汉字在java中的字节的转换_java中字节和字符的转换操作

package com.ywx.io;

import java.io.File;

import java.io.FileInputStream;

import java.io.FileOutputStream;

import java.io.InputStreamReader;

import java.io.OutputStreamWriter;

import java.io.Reader;

import java.io.Writer;

/**

* 字节和字符的转换操作

* @author Vashon

* date:20150403

*/

public class OutputStreamWriteDemo {

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

File f=new File("d:"+File.separator+"testdemo.txt");

stream1(f);

stream2(f);

}

//写入:字符-->字节

public static void stream1(File file) throws Exception{

Writer out=null;

//将字符流转换成字节流(写入的时候)

out=new OutputStreamWriter(new FileOutputStream(file));

out.write("这是一个美好的世界...hello world!");

out.close();

}//读取：字节-->字符

public static void stream2(File file) throws Exception{

Reader reader=null;

reader=new InputStreamReader(new FileInputStream(file));

char c[]=new char[1024];

int len=reader.read(c);

reader.close();

System.out.println(new String(c,0,len));

}

}

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