public class Demo_TransIO{
public static void main(String[] args) throws UnsupportedEncodingException, FileNotFoundException,IOException{
InputStreamReader isr = new InputStreamReader (new FileInputStream("utf-8.txt"),"utf-8"); //指定码表读字符
OutputStreamWriter osw = new OutputStreamWriter (new FileOutputStream(GBK.txt"),"GBK"); //指定码表写字符
int c;
while(c = isr.read() != -1){
osw.write(c);
}
isr.close();
osw.close();
}
}
比上面方法更高效的：
public static void demo02() throws UnsupportedEncodingException, FileNotFoundException,IOException{
BufferedReader br = new BufferedReader (new InputStreamReader (new FileInputStream("utf-8.txt"),"utf-8")); //指定码表更高效的读字符
BufferedWriter bw= new BufferedWriter (new OutputStreamWriter(new FileOutputStream(GBK.txt"),"GBK")); //指定码表更高效的写字符
int c;
while(c = br .read() != -1){
bw.write(c);
}
br .close();
bw.close();
}