Question

java怎么用流读取一个文件的内容然后添加到别的文件中？

Answer 1

FileInputStream fis = new FileInputStream("d:/a.txt");//从a.txt中读出
FileOutputStream fos = new FileOutputStream("d:/b.txt");//写到b.txt中去
BufferedReader reader = new BufferedReader(new InputStreamReader(fis));
BufferedWriter write = new BufferedWriter(new OutputStreamWriter(fos));
String temp;
while((temp = reader.readLine())!= null){//一次读一行
write.write(temp);
}
reader.close();
write.close();