IO 总结part3 l练习：指定编码表读取并存储文件 - 黑马程序员技术交流社区

练习：用指定的编码表将数据存至文件，再用对应的编码表读取内容输出至控制台
import java.io.*;
class CharSetDemo
{
public static void main(String[] args) throws IOException
{
String charSet = "GBK";
String charSet1 = "UTF-8";
//建立读取转换流,指定编码表
InputStreamReader ins = new InputStreamReader(new FileInputStream("utf.txt"),charSet);
InputStreamReader ins1 = new InputStreamReader(new FileInputStream("gbk.txt"),charSet1);
//缓冲
BufferedReader bufin = new BufferedReader(ins);
BufferedReader bufin1 = new BufferedReader(ins1);
//建立输出转换流
BufferedWriter bufo1 = new BufferedWriter(new OutputStreamWriter(new FileOutputStream("utf.txt"),charSet));//utf-8输出
BufferedWriter bufo = new BufferedWriter(new OutputStreamWriter(new FileOutputStream("gbk.txt"),charSet1));//gbk输出
bufo.write("我是用GBK编码的");
bufo1.write("我是用utf-8编码的");
bufo.close();
bufo1.close();
int by = 0;
//读取utf.txt文件输出到控制台
while((by=bufin.read())!=-1)
{
System.out.print((char)by);
}
System.out.println();//换行
//读取gbk.txt文件输出到控制台
while((by=bufin1.read())!=-1)
{
System.out.print((char)by);
}
System.out.println();
bufin.close();
System.out.println("Hello World!");
}
}

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