import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
//1、請編寫代碼把一個GBK的文本文件內容讀取後存儲到一個UTF-8的文本文件中。(不論平臺是什麼字符編碼)
public class TestHomework1 {
public static void main(String[] args) throws IOException {
String src = "gbk.txt";//GBK的文本文件
String dest = "utf8.txt";//UTF-8的文本文件
//1、先創建IO流
//這裏涉及到哪些IO流
//因爲這裏不清楚當前平臺的字符編碼
//讀取:只能選擇字節輸入流 FileInputStream + 進行解碼InputStreamReader
InputStreamReader isr = new InputStreamReader(new FileInputStream(src),"GBK");
//輸出:只能選擇字節輸出流 FileOutputStream + 進行編碼OutputStreamWriter
OutputStreamWriter osw = new OutputStreamWriter(new FileOutputStream(dest),"UTF-8");
//2、一邊讀一邊寫
//從isr中讀取,已經解碼後的數據,應該是字符流
//從osw寫出時,先寫字符流,然後osw按照指定的編碼方式,再寫到FileOutputStream流中,再寫到文件中
char[] data = new char[1024];
int len;
while((len = isr.read(data)) != -1){
osw.write(data, 0, len);
}
//3、關閉
osw.close();
isr.close();
}
}