转换流

是字符流和字节流之间的桥梁

转换输出流:OutputSteamWriter

转换输入流:InputStreamReader

InputStreamReader输入流

package myio;import java.io.*;public class inputsteamread {public static void main(String[] args) throws IOException {InputStreamReader isr = new InputStreamReader(new FileInputStream("D:\\文件路径\\a.txt"),"GBK");int ch;while ((ch = isr.read()) != -1){System.out.print((char) ch);}isr.close();}
}

运行结果

OutputSteamWriter

package myio;import java.io.*;public class inputsteamread {public static void main(String[] args) throws IOException {InputStreamReader isr = new InputStreamReader(new FileInputStream("D:\\文件路径\\c.txt"),"GBK");int ch;while ((ch = isr.read()) != -1){System.out.print((char) ch);}isr.close();}
}

文件从GBK转换成UTF-8

package myio;import java.io.*;public class inputoutput {public static void main(String[] args) throws IOException {InputStreamReader isr = new InputStreamReader(new FileInputStream("D:\\Web\\API\\src\\myio\\c.txt"),"GBK");OutputStreamWriter osw = new OutputStreamWriter(new FileOutputStream("D:\\Web\\API\\src\\myio\\d.txt"),"UTF-8");int ch;while ((ch = isr.read()) != -1){osw.write(ch);}osw.close();isr.close();}
}